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Class.javaAPI DocJava SE 6 API123808Tue Jun 10 00:25:36 BST 2008java.lang

Class

public final class Class extends Object implements GenericDeclaration, Type, Serializable, AnnotatedElement
Instances of the class Class represent classes and interfaces in a running Java application. An enum is a kind of class and an annotation is a kind of interface. Every array also belongs to a class that is reflected as a Class object that is shared by all arrays with the same element type and number of dimensions. The primitive Java types (boolean, byte, char, short, int, long, float, and double), and the keyword void are also represented as Class objects.

Class has no public constructor. Instead Class objects are constructed automatically by the Java Virtual Machine as classes are loaded and by calls to the defineClass method in the class loader.

The following example uses a Class object to print the class name of an object:

void printClassName(Object obj) {
System.out.println("The class of " + obj +
" is " + obj.getClass().getName());
}

It is also possible to get the Class object for a named type (or for void) using a class literal (JLS Section 15.8.2). For example:

System.out.println("The name of class Foo is: "+Foo.class.getName());
param
the type of the class modeled by this {@code Class} object. For example, the type of {@code String.class} is {@code Class}. Use {@code Class} if the class being modeled is unknown.
author
unascribed
version
1.201, 08/07/06
see
java.lang.ClassLoader#defineClass(byte[], int, int)
since
JDK1.0

Fields Summary
private static final int
ANNOTATION
private static final int
ENUM
private static final int
SYNTHETIC
private volatile transient Constructor
cachedConstructor
private volatile transient Class
newInstanceCallerCache
private transient String
name
private static ProtectionDomain
allPermDomain
protection domain returned when the internal domain is null
private static boolean
useCaches
Reflection support.
private volatile transient SoftReference
declaredFields
private volatile transient SoftReference
publicFields
private volatile transient SoftReference
declaredMethods
private volatile transient SoftReference
publicMethods
private volatile transient SoftReference
declaredConstructors
private volatile transient SoftReference
publicConstructors
private volatile transient SoftReference
declaredPublicFields
private volatile transient SoftReference
declaredPublicMethods
private volatile transient int
classRedefinedCount
private volatile transient int
lastRedefinedCount
private transient ClassRepository
genericInfo
private static final long
serialVersionUID
use serialVersionUID from JDK 1.1 for interoperability
private static final ObjectStreamField[]
serialPersistentFields
Class Class is special cased within the Serialization Stream Protocol. A Class instance is written initially into an ObjectOutputStream in the following format:
TC_CLASS ClassDescriptor
A ClassDescriptor is a special cased serialization of
a java.io.ObjectStreamClass instance.
A new handle is generated for the initial time the class descriptor is written into the stream. Future references to the class descriptor are written as references to the initial class descriptor instance.
private static ReflectionFactory
reflectionFactory
private static boolean
initted
private volatile transient T[]
enumConstants
private volatile transient Map
enumConstantDirectory
private static Annotation[]
EMPTY_ANNOTATIONS_ARRAY
private transient Map
annotations
private transient Map
declaredAnnotations
private AnnotationType
annotationType
Constructors Summary
private Class()


        
     
        registerNatives();
    
Methods Summary
private static voidaddAll(java.util.Collection c, java.lang.reflect.Field[] o)

        for (int i = 0; i < o.length; i++) {
            c.add(o[i]);
        }
    
private static java.lang.StringargumentTypesToString(java.lang.Class[] argTypes)

        StringBuilder buf = new StringBuilder();
        buf.append("(");
        if (argTypes != null) {
            for (int i = 0; i < argTypes.length; i++) {
                if (i > 0) {
                    buf.append(", ");
                }
		Class c = argTypes[i];
		buf.append((c == null) ? "null" : c.getName());
            }
        }
        buf.append(")");
        return buf.toString();
    
private static booleanarrayContentsEq(java.lang.Object[] a1, java.lang.Object[] a2)

        if (a1 == null) {
            return a2 == null || a2.length == 0;
        }

        if (a2 == null) {
            return a1.length == 0;
        }

        if (a1.length != a2.length) {
            return false;
        }

        for (int i = 0; i < a1.length; i++) {
            if (a1[i] != a2[i]) {
                return false;
            }
        }

        return true;
    
public java.lang.ClassasSubclass(java.lang.Class clazz)
Casts this Class object to represent a subclass of the class represented by the specified class object. Checks that that the cast is valid, and throws a ClassCastException if it is not. If this method succeeds, it always returns a reference to this class object.

This method is useful when a client needs to "narrow" the type of a Class object to pass it to an API that restricts the Class objects that it is willing to accept. A cast would generate a compile-time warning, as the correctness of the cast could not be checked at runtime (because generic types are implemented by erasure).

return
this Class object, cast to represent a subclass of the specified class object.
throws
ClassCastException if this Class object does not represent a subclass of the specified class (here "subclass" includes the class itself).
since
1.5

        if (clazz.isAssignableFrom(this))
            return (Class<? extends U>) this;
        else
            throw new ClassCastException(this.toString());
    
public Tcast(java.lang.Object obj)
Casts an object to the class or interface represented by this Class object.

param
obj the object to be cast
return
the object after casting, or null if obj is null
throws
ClassCastException if the object is not null and is not assignable to the type T.
since
1.5


                                                          
        
	if (obj != null && !isInstance(obj))
	    throw new ClassCastException();
	return (T) obj;
    
private static voidcheckInitted()

        
        if (initted) return;
        AccessController.doPrivileged(new PrivilegedAction() {
                public Object run() {
                    // Tests to ensure the system properties table is fully
                    // initialized. This is needed because reflection code is
                    // called very early in the initialization process (before
                    // command-line arguments have been parsed and therefore
                    // these user-settable properties installed.) We assume that
                    // if System.out is non-null then the System class has been
                    // fully initialized and that the bulk of the startup code
                    // has been run.

                    if (System.out == null) {
                        // java.lang.System not yet fully initialized
                        return null;
                    }

                    String val =
                        System.getProperty("sun.reflect.noCaches");
                    if (val != null && val.equals("true")) {
                        useCaches = false;
                    }
          
                    initted = true;
                    return null;
                }
            });
    
private voidcheckMemberAccess(int which, java.lang.ClassLoader ccl)

        SecurityManager s = System.getSecurityManager();
        if (s != null) {
            s.checkMemberAccess(this, which);
	    ClassLoader cl = getClassLoader0();
            if ((ccl != null) && (ccl != cl) && 
                  ((cl == null) || !cl.isAncestor(ccl))) {
		String name = this.getName();
		int i = name.lastIndexOf('.");
		if (i != -1) {
		    s.checkPackageAccess(name.substring(0, i));
		}
	    }
	}
    
private voidclearCachesOnClassRedefinition()


    // Clears cached values that might possibly have been obsoleted by
    // a class redefinition.
       
	if (lastRedefinedCount != classRedefinedCount) {
	    declaredFields = publicFields = declaredPublicFields = null;
	    declaredMethods = publicMethods = declaredPublicMethods = null;
	    declaredConstructors = publicConstructors = null;
	    annotations = declaredAnnotations = null;

	    // Use of "volatile" (and synchronization by caller in the case
	    // of annotations) ensures that no thread sees the update to
	    // lastRedefinedCount before seeing the caches cleared.
	    // We do not guard against brief windows during which multiple
	    // threads might redundantly work to fill an empty cache.
	    lastRedefinedCount = classRedefinedCount;
	}
    
private static java.lang.reflect.Constructor[]copyConstructors(java.lang.reflect.Constructor[] arg)

        Constructor[] out = new Constructor[arg.length];
        ReflectionFactory fact = getReflectionFactory();
        for (int i = 0; i < arg.length; i++) {
            out[i] = fact.copyConstructor(arg[i]);
        }
        return out;
    
private static java.lang.reflect.Field[]copyFields(java.lang.reflect.Field[] arg)

        Field[] out = new Field[arg.length];
        ReflectionFactory fact = getReflectionFactory();
        for (int i = 0; i < arg.length; i++) {
            out[i] = fact.copyField(arg[i]);
        }
        return out;
    
private static java.lang.reflect.Method[]copyMethods(java.lang.reflect.Method[] arg)

        Method[] out = new Method[arg.length];
        ReflectionFactory fact = getReflectionFactory();
        for (int i = 0; i < arg.length; i++) {
            out[i] = fact.copyMethod(arg[i]);
        }
        return out;
    
public booleandesiredAssertionStatus()
Returns the assertion status that would be assigned to this class if it were to be initialized at the time this method is invoked. If this class has had its assertion status set, the most recent setting will be returned; otherwise, if any package default assertion status pertains to this class, the most recent setting for the most specific pertinent package default assertion status is returned; otherwise, if this class is not a system class (i.e., it has a class loader) its class loader's default assertion status is returned; otherwise, the system class default assertion status is returned.

Few programmers will have any need for this method; it is provided for the benefit of the JRE itself. (It allows a class to determine at the time that it is initialized whether assertions should be enabled.) Note that this method is not guaranteed to return the actual assertion status that was (or will be) associated with the specified class when it was (or will be) initialized.

return
the desired assertion status of the specified class.
see
java.lang.ClassLoader#setClassAssertionStatus
see
java.lang.ClassLoader#setPackageAssertionStatus
see
java.lang.ClassLoader#setDefaultAssertionStatus
since
1.4



                                                                                                                                                                                                           
       
        ClassLoader loader = getClassLoader();
        // If the loader is null this is a system class, so ask the VM
        if (loader == null)
            return desiredAssertionStatus0(this);

        synchronized(loader) {
            // If the classloader has been initialized with
            // the assertion directives, ask it. Otherwise,
            // ask the VM.
            return (loader.classAssertionStatus == null ?
                    desiredAssertionStatus0(this) :
                    loader.desiredAssertionStatus(getName()));
        }
    
private static native booleandesiredAssertionStatus0(java.lang.Class clazz)

java.util.MapenumConstantDirectory()
Returns a map from simple name to enum constant. This package-private method is used internally by Enum to implement public static > T valueOf(Class, String) efficiently. Note that the map is returned by this method is created lazily on first use. Typically it won't ever get created.


                                                                  
       
	if (enumConstantDirectory == null) {
            T[] universe = getEnumConstantsShared();
            if (universe == null)
                throw new IllegalArgumentException(
                    getName() + " is not an enum type");
            Map<String, T> m = new HashMap<String, T>(2 * universe.length);
            for (T constant : universe)
                m.put(((Enum)constant).name(), constant);
            enumConstantDirectory = m;
        }
        return enumConstantDirectory;
    
public static java.lang.ClassforName(java.lang.String className)
Returns the Class object associated with the class or interface with the given string name. Invoking this method is equivalent to:
Class.forName(className, true, currentLoader)
where currentLoader denotes the defining class loader of the current class.

For example, the following code fragment returns the runtime Class descriptor for the class named java.lang.Thread:

Class t = Class.forName("java.lang.Thread")

A call to forName("X") causes the class named X to be initialized.

param
className the fully qualified name of the desired class.
return
the Class object for the class with the specified name.
exception
LinkageError if the linkage fails
exception
ExceptionInInitializerError if the initialization provoked by this method fails
exception
ClassNotFoundException if the class cannot be located

        return forName0(className, true, ClassLoader.getCallerClassLoader());
    
public static java.lang.ClassforName(java.lang.String name, boolean initialize, java.lang.ClassLoader loader)
Returns the Class object associated with the class or interface with the given string name, using the given class loader. Given the fully qualified name for a class or interface (in the same format returned by getName) this method attempts to locate, load, and link the class or interface. The specified class loader is used to load the class or interface. If the parameter loader is null, the class is loaded through the bootstrap class loader. The class is initialized only if the initialize parameter is true and if it has not been initialized earlier.

If name denotes a primitive type or void, an attempt will be made to locate a user-defined class in the unnamed package whose name is name. Therefore, this method cannot be used to obtain any of the Class objects representing primitive types or void.

If name denotes an array class, the component type of the array class is loaded but not initialized.

For example, in an instance method the expression:

Class.forName("Foo")
is equivalent to:
Class.forName("Foo", true, this.getClass().getClassLoader())
Note that this method throws errors related to loading, linking or initializing as specified in Sections 12.2, 12.3 and 12.4 of The Java Language Specification. Note that this method does not check whether the requested class is accessible to its caller.

If the loader is null, and a security manager is present, and the caller's class loader is not null, then this method calls the security manager's checkPermission method with a RuntimePermission("getClassLoader") permission to ensure it's ok to access the bootstrap class loader.

param
name fully qualified name of the desired class
param
initialize whether the class must be initialized
param
loader class loader from which the class must be loaded
return
class object representing the desired class
exception
LinkageError if the linkage fails
exception
ExceptionInInitializerError if the initialization provoked by this method fails
exception
ClassNotFoundException if the class cannot be located by the specified class loader
see
java.lang.Class#forName(String)
see
java.lang.ClassLoader
since
1.2

	if (loader == null) {
	    SecurityManager sm = System.getSecurityManager();
	    if (sm != null) {
		ClassLoader ccl = ClassLoader.getCallerClassLoader();
		if (ccl != null) {
		    sm.checkPermission(
			SecurityConstants.GET_CLASSLOADER_PERMISSION);
		}
	    }
	}
	return forName0(name, initialize, loader);
    
private static native java.lang.ClassforName0(java.lang.String name, boolean initialize, java.lang.ClassLoader loader)
Called after security checks have been made.

public AgetAnnotation(java.lang.Class annotationClass)

throws
NullPointerException {@inheritDoc}
since
1.5

        if (annotationClass == null)
            throw new NullPointerException();

        initAnnotationsIfNecessary();
        return (A) annotations.get(annotationClass);
    
sun.reflect.annotation.AnnotationTypegetAnnotationType()

        return annotationType;
    
public java.lang.annotation.Annotation[]getAnnotations()

since
1.5


           
        
        initAnnotationsIfNecessary();
        return annotations.values().toArray(EMPTY_ANNOTATIONS_ARRAY);
    
public java.lang.StringgetCanonicalName()
Returns the canonical name of the underlying class as defined by the Java Language Specification. Returns null if the underlying class does not have a canonical name (i.e., if it is a local or anonymous class or an array whose component type does not have a canonical name).

return
the canonical name of the underlying class if it exists, and null otherwise.
since
1.5

	if (isArray()) {
	    String canonicalName = getComponentType().getCanonicalName();
	    if (canonicalName != null)
		return canonicalName + "[]";
	    else
		return null;
	}
	if (isLocalOrAnonymousClass())
	    return null;
	Class<?> enclosingClass = getEnclosingClass();
	if (enclosingClass == null) { // top level class
	    return getName();
	} else {
	    String enclosingName = enclosingClass.getCanonicalName();
	    if (enclosingName == null)
		return null;
	    return enclosingName + "." + getSimpleName();
	}
    
public java.lang.ClassLoadergetClassLoader()
Returns the class loader for the class. Some implementations may use null to represent the bootstrap class loader. This method will return null in such implementations if this class was loaded by the bootstrap class loader.

If a security manager is present, and the caller's class loader is not null and the caller's class loader is not the same as or an ancestor of the class loader for the class whose class loader is requested, then this method calls the security manager's checkPermission method with a RuntimePermission("getClassLoader") permission to ensure it's ok to access the class loader for the class.

If this object represents a primitive type or void, null is returned.

return
the class loader that loaded the class or interface represented by this object.
throws
SecurityException if a security manager exists and its checkPermission method denies access to the class loader for the class.
see
java.lang.ClassLoader
see
SecurityManager#checkPermission
see
java.lang.RuntimePermission

        ClassLoader cl = getClassLoader0();
        if (cl == null)
            return null;
        SecurityManager sm = System.getSecurityManager();
        if (sm != null) {
            ClassLoader ccl = ClassLoader.getCallerClassLoader();
            if (ccl != null && ccl != cl && !cl.isAncestor(ccl)) {
                sm.checkPermission(SecurityConstants.GET_CLASSLOADER_PERMISSION);
            }
        }
        return cl;
    
native java.lang.ClassLoadergetClassLoader0()

public java.lang.Class[]getClasses()
Returns an array containing Class objects representing all the public classes and interfaces that are members of the class represented by this Class object. This includes public class and interface members inherited from superclasses and public class and interface members declared by the class. This method returns an array of length 0 if this Class object has no public member classes or interfaces. This method also returns an array of length 0 if this Class object represents a primitive type, an array class, or void.

return
the array of Class objects representing the public members of this class
exception
SecurityException If a security manager, s, is present and any of the following conditions is met:
  • invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.PUBLIC)} method denies access to the classes within this class
  • the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class
since
JDK1.1

	// be very careful not to change the stack depth of this
	// checkMemberAccess call for security reasons 
	// see java.lang.SecurityManager.checkMemberAccess
        checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());

	// Privileged so this implementation can look at DECLARED classes,
	// something the caller might not have privilege to do.  The code here
	// is allowed to look at DECLARED classes because (1) it does not hand
	// out anything other than public members and (2) public member access
	// has already been ok'd by the SecurityManager.

	Class[] result = (Class[]) java.security.AccessController.doPrivileged
	    (new java.security.PrivilegedAction() {
	        public Object run() {
		    java.util.List<Class> list = new java.util.ArrayList();
		    Class currentClass = Class.this;
		    while (currentClass != null) {
			Class[] members = currentClass.getDeclaredClasses();
			for (int i = 0; i < members.length; i++) {
			    if (Modifier.isPublic(members[i].getModifiers())) {
				list.add(members[i]);
			    }
			}
			currentClass = currentClass.getSuperclass();
		    }
		    Class[] empty = {};
		    return list.toArray(empty);
		}
	    });

        return result;
    
public native java.lang.ClassgetComponentType()
Returns the Class representing the component type of an array. If this class does not represent an array class this method returns null.

return
the Class representing the component type of this class if this class is an array
see
java.lang.reflect.Array
since
JDK1.1

native sun.reflect.ConstantPoolgetConstantPool()

public java.lang.reflect.ConstructorgetConstructor(java.lang.Class parameterTypes)
Returns a Constructor object that reflects the specified public constructor of the class represented by this Class object. The parameterTypes parameter is an array of Class objects that identify the constructor's formal parameter types, in declared order. If this Class object represents an inner class declared in a non-static context, the formal parameter types include the explicit enclosing instance as the first parameter.

The constructor to reflect is the public constructor of the class represented by this Class object whose formal parameter types match those specified by parameterTypes.

param
parameterTypes the parameter array
return
the Constructor object of the public constructor that matches the specified parameterTypes
exception
NoSuchMethodException if a matching method is not found.
exception
SecurityException If a security manager, s, is present and any of the following conditions is met:
  • invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.PUBLIC)} denies access to the constructor
  • the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class
since
JDK1.1

	// be very careful not to change the stack depth of this
	// checkMemberAccess call for security reasons 
	// see java.lang.SecurityManager.checkMemberAccess
        checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());
        return getConstructor0(parameterTypes, Member.PUBLIC);
    
private java.lang.reflect.ConstructorgetConstructor0(java.lang.Class[] parameterTypes, int which)

        Constructor[] constructors = privateGetDeclaredConstructors((which == Member.PUBLIC));
        for (int i = 0; i < constructors.length; i++) {
            if (arrayContentsEq(parameterTypes,
                                constructors[i].getParameterTypes())) {
                return getReflectionFactory().copyConstructor(constructors[i]);
            }
        }
        throw new NoSuchMethodException(getName() + ".<init>" + argumentTypesToString(parameterTypes));
    
public java.lang.reflect.Constructor[]getConstructors()
Returns an array containing Constructor objects reflecting all the public constructors of the class represented by this Class object. An array of length 0 is returned if the class has no public constructors, or if the class is an array class, or if the class reflects a primitive type or void. Note that while this method returns an array of {@code Constructor} objects (that is an array of constructors from this class), the return type of this method is {@code Constructor[]} and not {@code Constructor[]} as might be expected. This less informative return type is necessary since after being returned from this method, the array could be modified to hold {@code Constructor} objects for different classes, which would violate the type guarantees of {@code Constructor[]}.

return
the array of Constructor objects representing the public constructors of this class
exception
SecurityException If a security manager, s, is present and any of the following conditions is met:
  • invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.PUBLIC)} denies access to the constructors within this class
  • the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class
since
JDK1.1

	// be very careful not to change the stack depth of this
	// checkMemberAccess call for security reasons 
	// see java.lang.SecurityManager.checkMemberAccess
        checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());
        return copyConstructors(privateGetDeclaredConstructors(true));
    
public java.lang.annotation.Annotation[]getDeclaredAnnotations()

since
1.5

        initAnnotationsIfNecessary();
        return declaredAnnotations.values().toArray(EMPTY_ANNOTATIONS_ARRAY);
    
public java.lang.Class[]getDeclaredClasses()
Returns an array of Class objects reflecting all the classes and interfaces declared as members of the class represented by this Class object. This includes public, protected, default (package) access, and private classes and interfaces declared by the class, but excludes inherited classes and interfaces. This method returns an array of length 0 if the class declares no classes or interfaces as members, or if this Class object represents a primitive type, an array class, or void.

return
the array of Class objects representing all the declared members of this class
exception
SecurityException If a security manager, s, is present and any of the following conditions is met:
  • invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.DECLARED)} denies access to the declared classes within this class
  • the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class
since
JDK1.1

	// be very careful not to change the stack depth of this
	// checkMemberAccess call for security reasons 
	// see java.lang.SecurityManager.checkMemberAccess
        checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader());
        return getDeclaredClasses0();
    
private native java.lang.Class[]getDeclaredClasses0()

public java.lang.reflect.ConstructorgetDeclaredConstructor(java.lang.Class parameterTypes)
Returns a Constructor object that reflects the specified constructor of the class or interface represented by this Class object. The parameterTypes parameter is an array of Class objects that identify the constructor's formal parameter types, in declared order. If this Class object represents an inner class declared in a non-static context, the formal parameter types include the explicit enclosing instance as the first parameter.

param
parameterTypes the parameter array
return
The Constructor object for the constructor with the specified parameter list
exception
NoSuchMethodException if a matching method is not found.
exception
SecurityException If a security manager, s, is present and any of the following conditions is met:
  • invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.DECLARED)} denies access to the declared constructor
  • the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class
since
JDK1.1

	// be very careful not to change the stack depth of this
	// checkMemberAccess call for security reasons 
	// see java.lang.SecurityManager.checkMemberAccess
        checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader());
        return getConstructor0(parameterTypes, Member.DECLARED);
    
public java.lang.reflect.Constructor[]getDeclaredConstructors()
Returns an array of Constructor objects reflecting all the constructors declared by the class represented by this Class object. These are public, protected, default (package) access, and private constructors. The elements in the array returned are not sorted and are not in any particular order. If the class has a default constructor, it is included in the returned array. This method returns an array of length 0 if this Class object represents an interface, a primitive type, an array class, or void.

See The Java Language Specification, section 8.2.

return
the array of Constructor objects representing all the declared constructors of this class
exception
SecurityException If a security manager, s, is present and any of the following conditions is met:
  • invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.DECLARED)} denies access to the declared constructors within this class
  • the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class
since
JDK1.1

	// be very careful not to change the stack depth of this
	// checkMemberAccess call for security reasons 
	// see java.lang.SecurityManager.checkMemberAccess
        checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader());
        return copyConstructors(privateGetDeclaredConstructors(false));
    
private native java.lang.reflect.Constructor[]getDeclaredConstructors0(boolean publicOnly)

public java.lang.reflect.FieldgetDeclaredField(java.lang.String name)
Returns a Field object that reflects the specified declared field of the class or interface represented by this Class object. The name parameter is a String that specifies the simple name of the desired field. Note that this method will not reflect the length field of an array class.

param
name the name of the field
return
the Field object for the specified field in this class
exception
NoSuchFieldException if a field with the specified name is not found.
exception
NullPointerException if name is null
exception
SecurityException If a security manager, s, is present and any of the following conditions is met:
  • invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.DECLARED)} denies access to the declared field
  • the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class
since
JDK1.1

	// be very careful not to change the stack depth of this
	// checkMemberAccess call for security reasons 
	// see java.lang.SecurityManager.checkMemberAccess
        checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader());
        Field field = searchFields(privateGetDeclaredFields(false), name);
        if (field == null) {
            throw new NoSuchFieldException(name);
        }
        return field;
    
public java.lang.reflect.Field[]getDeclaredFields()
Returns an array of Field objects reflecting all the fields declared by the class or interface represented by this Class object. This includes public, protected, default (package) access, and private fields, but excludes inherited fields. The elements in the array returned are not sorted and are not in any particular order. This method returns an array of length 0 if the class or interface declares no fields, or if this Class object represents a primitive type, an array class, or void.

See The Java Language Specification, sections 8.2 and 8.3.

return
the array of Field objects representing all the declared fields of this class
exception
SecurityException If a security manager, s, is present and any of the following conditions is met:
  • invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.DECLARED)} denies access to the declared fields within this class
  • the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class
since
JDK1.1

	// be very careful not to change the stack depth of this
	// checkMemberAccess call for security reasons 
	// see java.lang.SecurityManager.checkMemberAccess
        checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader());
        return copyFields(privateGetDeclaredFields(false));
    
private native java.lang.reflect.Field[]getDeclaredFields0(boolean publicOnly)

public java.lang.reflect.MethodgetDeclaredMethod(java.lang.String name, java.lang.Class parameterTypes)
Returns a Method object that reflects the specified declared method of the class or interface represented by this Class object. The name parameter is a String that specifies the simple name of the desired method, and the parameterTypes parameter is an array of Class objects that identify the method's formal parameter types, in declared order. If more than one method with the same parameter types is declared in a class, and one of these methods has a return type that is more specific than any of the others, that method is returned; otherwise one of the methods is chosen arbitrarily. If the name is "<init>"or "<clinit>" a NoSuchMethodException is raised.

param
name the name of the method
param
parameterTypes the parameter array
return
the Method object for the method of this class matching the specified name and parameters
exception
NoSuchMethodException if a matching method is not found.
exception
NullPointerException if name is null
exception
SecurityException If a security manager, s, is present and any of the following conditions is met:
  • invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.DECLARED)} denies access to the declared method
  • the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class
since
JDK1.1

	// be very careful not to change the stack depth of this
	// checkMemberAccess call for security reasons 
	// see java.lang.SecurityManager.checkMemberAccess
        checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader());
        Method method = searchMethods(privateGetDeclaredMethods(false), name, parameterTypes);
        if (method == null) {
            throw new NoSuchMethodException(getName() + "." + name + argumentTypesToString(parameterTypes));
        }
        return method;
    
public java.lang.reflect.Method[]getDeclaredMethods()
Returns an array of Method objects reflecting all the methods declared by the class or interface represented by this Class object. This includes public, protected, default (package) access, and private methods, but excludes inherited methods. The elements in the array returned are not sorted and are not in any particular order. This method returns an array of length 0 if the class or interface declares no methods, or if this Class object represents a primitive type, an array class, or void. The class initialization method <clinit> is not included in the returned array. If the class declares multiple public member methods with the same parameter types, they are all included in the returned array.

See The Java Language Specification, section 8.2.

return
the array of Method objects representing all the declared methods of this class
exception
SecurityException If a security manager, s, is present and any of the following conditions is met:
  • invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.DECLARED)} denies access to the declared methods within this class
  • the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class
since
JDK1.1

	// be very careful not to change the stack depth of this
	// checkMemberAccess call for security reasons 
	// see java.lang.SecurityManager.checkMemberAccess
        checkMemberAccess(Member.DECLARED, ClassLoader.getCallerClassLoader());
        return copyMethods(privateGetDeclaredMethods(false));
    
private native java.lang.reflect.Method[]getDeclaredMethods0(boolean publicOnly)

public native java.lang.ClassgetDeclaringClass()
If the class or interface represented by this Class object is a member of another class, returns the Class object representing the class in which it was declared. This method returns null if this class or interface is not a member of any other class. If this Class object represents an array class, a primitive type, or void,then this method returns null.

return
the declaring class for this class
since
JDK1.1

public java.lang.ClassgetEnclosingClass()
Returns the immediately enclosing class of the underlying class. If the underlying class is a top level class this method returns null.

return
the immediately enclosing class of the underlying class
since
1.5

	// There are five kinds of classes (or interfaces):
	// a) Top level classes
	// b) Nested classes (static member classes)
	// c) Inner classes (non-static member classes)
	// d) Local classes (named classes declared within a method)
	// e) Anonymous classes


	// JVM Spec 4.8.6: A class must have an EnclosingMethod
	// attribute if and only if it is a local class or an
	// anonymous class.
	EnclosingMethodInfo enclosingInfo = getEnclosingMethodInfo();

	if (enclosingInfo == null) {
	    // This is a top level or a nested class or an inner class (a, b, or c)
	    return getDeclaringClass();
	} else {
	    Class<?> enclosingClass = enclosingInfo.getEnclosingClass();
	    // This is a local class or an anonymous class (d or e)
	    if (enclosingClass == this || enclosingClass == null)
		throw new InternalError("Malformed enclosing method information");
	    else
		return enclosingClass;
	}
    
public java.lang.reflect.ConstructorgetEnclosingConstructor()
If this Class object represents a local or anonymous class within a constructor, returns a {@link java.lang.reflect.Constructor Constructor} object representing the immediately enclosing constructor of the underlying class. Returns null otherwise. In particular, this method returns null if the underlying class is a local or anonymous class immediately enclosed by a type declaration, instance initializer or static initializer.

return
the immediately enclosing constructor of the underlying class, if that class is a local or anonymous class; otherwise null.
since
1.5

	EnclosingMethodInfo enclosingInfo = getEnclosingMethodInfo();
	
	if (enclosingInfo == null)
	    return null;
	else {
	    if (!enclosingInfo.isConstructor())
		return null;

	    ConstructorRepository typeInfo = ConstructorRepository.make(enclosingInfo.getDescriptor(), 
									getFactory());
	    Type []    parameterTypes   = typeInfo.getParameterTypes();
	    Class<?>[] parameterClasses = new Class<?>[parameterTypes.length];

	    // Convert Types to Classes; returned types *should*
	    // be class objects since the methodDescriptor's used
	    // don't have generics information
	    for(int i = 0; i < parameterClasses.length; i++)
		parameterClasses[i] = toClass(parameterTypes[i]);

	    /*
	     * Loop over all declared constructors; match number
	     * of and type of parameters.
	     */
	    for(Constructor c: enclosingInfo.getEnclosingClass().getDeclaredConstructors()) {
		Class<?>[] candidateParamClasses = c.getParameterTypes();
		if (candidateParamClasses.length == parameterClasses.length) {
		    boolean matches = true;
		    for(int i = 0; i < candidateParamClasses.length; i++) {
			if (!candidateParamClasses[i].equals(parameterClasses[i])) {
			    matches = false;
			    break;
			}
		    }
			
		    if (matches)
			return c;
		}
	    }
		
	    throw new InternalError("Enclosing constructor not found");
	}
    
public java.lang.reflect.MethodgetEnclosingMethod()
If this Class object represents a local or anonymous class within a method, returns a {@link java.lang.reflect.Method Method} object representing the immediately enclosing method of the underlying class. Returns null otherwise. In particular, this method returns null if the underlying class is a local or anonymous class immediately enclosed by a type declaration, instance initializer or static initializer.

return
the immediately enclosing method of the underlying class, if that class is a local or anonymous class; otherwise null.
since
1.5

	EnclosingMethodInfo enclosingInfo = getEnclosingMethodInfo();
	
	if (enclosingInfo == null)
	    return null;
	else {
	    if (!enclosingInfo.isMethod())
		return null;

	    MethodRepository typeInfo = MethodRepository.make(enclosingInfo.getDescriptor(), 
							      getFactory());
	    Class      returnType       = toClass(typeInfo.getReturnType());
	    Type []    parameterTypes   = typeInfo.getParameterTypes();
	    Class<?>[] parameterClasses = new Class<?>[parameterTypes.length];

	    // Convert Types to Classes; returned types *should*
	    // be class objects since the methodDescriptor's used
	    // don't have generics information
	    for(int i = 0; i < parameterClasses.length; i++)
		parameterClasses[i] = toClass(parameterTypes[i]);

	    /*
	     * Loop over all declared methods; match method name,
	     * number of and type of parameters, *and* return
	     * type.  Matching return type is also necessary
	     * because of covariant returns, etc.
	     */
	    for(Method m: enclosingInfo.getEnclosingClass().getDeclaredMethods()) {
		if (m.getName().equals(enclosingInfo.getName()) ) {
		    Class<?>[] candidateParamClasses = m.getParameterTypes();
		    if (candidateParamClasses.length == parameterClasses.length) {
			boolean matches = true;
			for(int i = 0; i < candidateParamClasses.length; i++) {
			    if (!candidateParamClasses[i].equals(parameterClasses[i])) {
				matches = false;
				break;
			    }
			}
			    
			if (matches) { // finally, check return type
			    if (m.getReturnType().equals(returnType) )
				return m;
			}
		    }
		}
	    }
		
	    throw new InternalError("Enclosing method not found");
	}
    
private native java.lang.Object[]getEnclosingMethod0()

private java.lang.Class$EnclosingMethodInfogetEnclosingMethodInfo()

	Object[] enclosingInfo = getEnclosingMethod0();
	if (enclosingInfo == null)
	    return null;
	else {
	    return new EnclosingMethodInfo(enclosingInfo);
	}
    
public T[]getEnumConstants()
Returns the elements of this enum class or null if this Class object does not represent an enum type.

return
an array containing the values comprising the enum class represented by this Class object in the order they're declared, or null if this Class object does not represent an enum type
since
1.5

	T[] values = getEnumConstantsShared();
	return (values != null) ? values.clone() : null;
    
T[]getEnumConstantsShared()
Returns the elements of this enum class or null if this Class object does not represent an enum type; identical to getEnumConstantsShared except that the result is uncloned, cached, and shared by all callers.

	if (enumConstants == null) {
	    if (!isEnum()) return null;
	    try {
		final Method values = getMethod("values");
                java.security.AccessController.doPrivileged
                    (new java.security.PrivilegedAction() {
                            public Object run() {
                                values.setAccessible(true);
                                return null;
                            }
                        });
		enumConstants = (T[])values.invoke(null);
	    }
	    // These can happen when users concoct enum-like classes
	    // that don't comply with the enum spec.
	    catch (InvocationTargetException ex) { return null; }
	    catch (NoSuchMethodException ex) { return null; }
	    catch (IllegalAccessException ex) { return null; }
	}
	return enumConstants;
    
private sun.reflect.generics.factory.GenericsFactorygetFactory()

	// create scope and factory
	return CoreReflectionFactory.make(this, ClassScope.make(this)); 
    
public java.lang.reflect.FieldgetField(java.lang.String name)
Returns a Field object that reflects the specified public member field of the class or interface represented by this Class object. The name parameter is a String specifying the simple name of the desired field.

The field to be reflected is determined by the algorithm that follows. Let C be the class represented by this object:

  1. If C declares a public field with the name specified, that is the field to be reflected.
  2. If no field was found in step 1 above, this algorithm is applied recursively to each direct superinterface of C. The direct superinterfaces are searched in the order they were declared.
  3. If no field was found in steps 1 and 2 above, and C has a superclass S, then this algorithm is invoked recursively upon S. If C has no superclass, then a NoSuchFieldException is thrown.

See The Java Language Specification, sections 8.2 and 8.3.

param
name the field name
return
the Field object of this class specified by name
exception
NoSuchFieldException if a field with the specified name is not found.
exception
NullPointerException if name is null
exception
SecurityException If a security manager, s, is present and any of the following conditions is met:
  • invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.PUBLIC)} denies access to the field
  • the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class
since
JDK1.1

	// be very careful not to change the stack depth of this
	// checkMemberAccess call for security reasons 
	// see java.lang.SecurityManager.checkMemberAccess
        checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());
        Field field = getField0(name);
        if (field == null) {
            throw new NoSuchFieldException(name);
        }
        return field;
    
private java.lang.reflect.FieldgetField0(java.lang.String name)

        // Note: the intent is that the search algorithm this routine
        // uses be equivalent to the ordering imposed by
        // privateGetPublicFields(). It fetches only the declared
        // public fields for each class, however, to reduce the number
        // of Field objects which have to be created for the common
        // case where the field being requested is declared in the
        // class which is being queried.
        Field res = null;
        // Search declared public fields
        if ((res = searchFields(privateGetDeclaredFields(true), name)) != null) {
            return res;
        }
        // Direct superinterfaces, recursively
        Class[] interfaces = getInterfaces();
        for (int i = 0; i < interfaces.length; i++) {
            Class c = interfaces[i];
            if ((res = c.getField0(name)) != null) {
                return res;
            }
        }
        // Direct superclass, recursively
        if (!isInterface()) {
            Class c = getSuperclass();
            if (c != null) {
                if ((res = c.getField0(name)) != null) {
                    return res;
                }
            }
        }
        return null;
    
public java.lang.reflect.Field[]getFields()
Returns an array containing Field objects reflecting all the accessible public fields of the class or interface represented by this Class object. The elements in the array returned are not sorted and are not in any particular order. This method returns an array of length 0 if the class or interface has no accessible public fields, or if it represents an array class, a primitive type, or void.

Specifically, if this Class object represents a class, this method returns the public fields of this class and of all its superclasses. If this Class object represents an interface, this method returns the fields of this interface and of all its superinterfaces.

The implicit length field for array class is not reflected by this method. User code should use the methods of class Array to manipulate arrays.

See The Java Language Specification, sections 8.2 and 8.3.

return
the array of Field objects representing the public fields
exception
SecurityException If a security manager, s, is present and any of the following conditions is met:
  • invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.PUBLIC)} denies access to the fields within this class
  • the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class
since
JDK1.1

	// be very careful not to change the stack depth of this
	// checkMemberAccess call for security reasons 
	// see java.lang.SecurityManager.checkMemberAccess
        checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());
        return copyFields(privateGetPublicFields(null));
    
private sun.reflect.generics.repository.ClassRepositorygetGenericInfo()

	// lazily initialize repository if necessary
	if (genericInfo == null) {
	    // create and cache generic info repository
	    genericInfo = ClassRepository.make(getGenericSignature(), 
					       getFactory());
	}
	return genericInfo; //return cached repository
    
public java.lang.reflect.Type[]getGenericInterfaces()
Returns the Types representing the interfaces directly implemented by the class or interface represented by this object.

If a superinterface is a parameterized type, the Type object returned for it must accurately reflect the actual type parameters used in the source code. The parameterized type representing each superinterface is created if it had not been created before. See the declaration of {@link java.lang.reflect.ParameterizedType ParameterizedType} for the semantics of the creation process for parameterized types.

If this object represents a class, the return value is an array containing objects representing all interfaces implemented by the class. The order of the interface objects in the array corresponds to the order of the interface names in the implements clause of the declaration of the class represented by this object. In the case of an array class, the interfaces Cloneable and Serializable are returned in that order.

If this object represents an interface, the array contains objects representing all interfaces directly extended by the interface. The order of the interface objects in the array corresponds to the order of the interface names in the extends clause of the declaration of the interface represented by this object.

If this object represents a class or interface that implements no interfaces, the method returns an array of length 0.

If this object represents a primitive type or void, the method returns an array of length 0.

throws
GenericSignatureFormatError if the generic class signature does not conform to the format specified in the Java Virtual Machine Specification, 3rd edition
throws
TypeNotPresentException if any of the generic superinterfaces refers to a non-existent type declaration
throws
MalformedParameterizedTypeException if any of the generic superinterfaces refer to a parameterized type that cannot be instantiated for any reason
return
an array of interfaces implemented by this class
since
1.5

	if (getGenericSignature() != null)
	    return getGenericInfo().getSuperInterfaces();
	else
	    return getInterfaces();
    
private native java.lang.StringgetGenericSignature()

public java.lang.reflect.TypegetGenericSuperclass()
Returns the Type representing the direct superclass of the entity (class, interface, primitive type or void) represented by this Class.

If the superclass is a parameterized type, the Type object returned must accurately reflect the actual type parameters used in the source code. The parameterized type representing the superclass is created if it had not been created before. See the declaration of {@link java.lang.reflect.ParameterizedType ParameterizedType} for the semantics of the creation process for parameterized types. If this Class represents either the Object class, an interface, a primitive type, or void, then null is returned. If this object represents an array class then the Class object representing the Object class is returned.

throws
GenericSignatureFormatError if the generic class signature does not conform to the format specified in the Java Virtual Machine Specification, 3rd edition
throws
TypeNotPresentException if the generic superclass refers to a non-existent type declaration
throws
MalformedParameterizedTypeException if the generic superclass refers to a parameterized type that cannot be instantiated for any reason
return
the superclass of the class represented by this object
since
1.5

	if (getGenericSignature() != null) {
	    // Historical irregularity:
	    // Generic signature marks interfaces with superclass = Object
	    // but this API returns null for interfaces
	    if (isInterface())
		return null;
	    return getGenericInfo().getSuperclass();
	} else
	    return getSuperclass();
    
public native java.lang.Class[]getInterfaces()
Determines the interfaces implemented by the class or interface represented by this object.

If this object represents a class, the return value is an array containing objects representing all interfaces implemented by the class. The order of the interface objects in the array corresponds to the order of the interface names in the implements clause of the declaration of the class represented by this object. For example, given the declaration:

class Shimmer implements FloorWax, DessertTopping { ... }
suppose the value of s is an instance of Shimmer; the value of the expression:
s.getClass().getInterfaces()[0]
is the Class object that represents interface FloorWax; and the value of:
s.getClass().getInterfaces()[1]
is the Class object that represents interface DessertTopping.

If this object represents an interface, the array contains objects representing all interfaces extended by the interface. The order of the interface objects in the array corresponds to the order of the interface names in the extends clause of the declaration of the interface represented by this object.

If this object represents a class or interface that implements no interfaces, the method returns an array of length 0.

If this object represents a primitive type or void, the method returns an array of length 0.

return
an array of interfaces implemented by this class.

public java.lang.reflect.MethodgetMethod(java.lang.String name, java.lang.Class parameterTypes)
Returns a Method object that reflects the specified public member method of the class or interface represented by this Class object. The name parameter is a String specifying the simple name of the desired method. The parameterTypes parameter is an array of Class objects that identify the method's formal parameter types, in declared order. If parameterTypes is null, it is treated as if it were an empty array.

If the name is "{@code };"or "{@code }" a NoSuchMethodException is raised. Otherwise, the method to be reflected is determined by the algorithm that follows. Let C be the class represented by this object:

  1. C is searched for any matching methods. If no matching method is found, the algorithm of step 1 is invoked recursively on the superclass of C.
  2. If no method was found in step 1 above, the superinterfaces of C are searched for a matching method. If any such method is found, it is reflected.
To find a matching method in a class C:  If C declares exactly one public method with the specified name and exactly the same formal parameter types, that is the method reflected. If more than one such method is found in C, and one of these methods has a return type that is more specific than any of the others, that method is reflected; otherwise one of the methods is chosen arbitrarily.

Note that there may be more than one matching method in a class because while the Java language forbids a class to declare multiple methods with the same signature but different return types, the Java virtual machine does not. This increased flexibility in the virtual machine can be used to implement various language features. For example, covariant returns can be implemented with {@linkplain java.lang.reflect.Method#isBridge bridge methods}; the bridge method and the method being overridden would have the same signature but different return types.

See The Java Language Specification, sections 8.2 and 8.4.

param
name the name of the method
param
parameterTypes the list of parameters
return
the Method object that matches the specified name and parameterTypes
exception
NoSuchMethodException if a matching method is not found or if the name is "<init>"or "<clinit>".
exception
NullPointerException if name is null
exception
SecurityException If a security manager, s, is present and any of the following conditions is met:
  • invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.PUBLIC)} denies access to the method
  • the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class
since
JDK1.1

	// be very careful not to change the stack depth of this
	// checkMemberAccess call for security reasons 
	// see java.lang.SecurityManager.checkMemberAccess
        checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());
        Method method = getMethod0(name, parameterTypes);
        if (method == null) {
            throw new NoSuchMethodException(getName() + "." + name + argumentTypesToString(parameterTypes));
        }
        return method;
    
private java.lang.reflect.MethodgetMethod0(java.lang.String name, java.lang.Class[] parameterTypes)

        // Note: the intent is that the search algorithm this routine
        // uses be equivalent to the ordering imposed by
        // privateGetPublicMethods(). It fetches only the declared
        // public methods for each class, however, to reduce the
        // number of Method objects which have to be created for the
        // common case where the method being requested is declared in
        // the class which is being queried.
        Method res = null;
        // Search declared public methods
        if ((res = searchMethods(privateGetDeclaredMethods(true),
                                 name,
                                 parameterTypes)) != null) {
            return res;
        }
        // Search superclass's methods
        if (!isInterface()) {
            Class c = getSuperclass();
            if (c != null) {
                if ((res = c.getMethod0(name, parameterTypes)) != null) {
                    return res;
                }
            }
        }
        // Search superinterfaces' methods
        Class[] interfaces = getInterfaces();
        for (int i = 0; i < interfaces.length; i++) {
            Class c = interfaces[i];
            if ((res = c.getMethod0(name, parameterTypes)) != null) {
                return res;
            }
        }
        // Not found
        return null;
    
public java.lang.reflect.Method[]getMethods()
Returns an array containing Method objects reflecting all the public member methods of the class or interface represented by this Class object, including those declared by the class or interface and those inherited from superclasses and superinterfaces. Array classes return all the (public) member methods inherited from the Object class. The elements in the array returned are not sorted and are not in any particular order. This method returns an array of length 0 if this Class object represents a class or interface that has no public member methods, or if this Class object represents a primitive type or void.

The class initialization method <clinit> is not included in the returned array. If the class declares multiple public member methods with the same parameter types, they are all included in the returned array.

See The Java Language Specification, sections 8.2 and 8.4.

return
the array of Method objects representing the public methods of this class
exception
SecurityException If a security manager, s, is present and any of the following conditions is met:
  • invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.PUBLIC)} denies access to the methods within this class
  • the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class
since
JDK1.1

	// be very careful not to change the stack depth of this
	// checkMemberAccess call for security reasons 
	// see java.lang.SecurityManager.checkMemberAccess
        checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());
        return copyMethods(privateGetPublicMethods());
    
public native intgetModifiers()
Returns the Java language modifiers for this class or interface, encoded in an integer. The modifiers consist of the Java Virtual Machine's constants for public, protected, private, final, static, abstract and interface; they should be decoded using the methods of class Modifier.

If the underlying class is an array class, then its public, private and protected modifiers are the same as those of its component type. If this Class represents a primitive type or void, its public modifier is always true, and its protected and private modifiers are always false. If this object represents an array class, a primitive type or void, then its final modifier is always true and its interface modifier is always false. The values of its other modifiers are not determined by this specification.

The modifier encodings are defined in The Java Virtual Machine Specification, table 4.1.

return
the int representing the modifiers for this class
see
java.lang.reflect.Modifier
since
JDK1.1

public java.lang.StringgetName()
Returns the name of the entity (class, interface, array class, primitive type, or void) represented by this Class object, as a String.

If this class object represents a reference type that is not an array type then the binary name of the class is returned, as specified by the Java Language Specification, Second Edition.

If this class object represents a primitive type or void, then the name returned is a String equal to the Java language keyword corresponding to the primitive type or void.

If this class object represents a class of arrays, then the internal form of the name consists of the name of the element type preceded by one or more '[' characters representing the depth of the array nesting. The encoding of element type names is as follows:

Element Type     Encoding
boolean     Z
byte     B
char     C
class or interface     Lclassname;
double     D
float     F
int     I
long     J
short     S

The class or interface name classname is the binary name of the class specified above.

Examples:

String.class.getName()
returns "java.lang.String"
byte.class.getName()
returns "byte"
(new Object[3]).getClass().getName()
returns "[Ljava.lang.Object;"
(new int[3][4][5][6][7][8][9]).getClass().getName()
returns "[[[[[[[I"

return
the name of the class or interface represented by this object.

	if (name == null)
	    name = getName0();
	return name;
    
private native java.lang.StringgetName0()

public java.lang.PackagegetPackage()
Gets the package for this class. The class loader of this class is used to find the package. If the class was loaded by the bootstrap class loader the set of packages loaded from CLASSPATH is searched to find the package of the class. Null is returned if no package object was created by the class loader of this class.

Packages have attributes for versions and specifications only if the information was defined in the manifests that accompany the classes, and if the class loader created the package instance with the attributes from the manifest.

return
the package of the class, or null if no package information is available from the archive or codebase.

        return Package.getPackage(this);
    
static native java.lang.ClassgetPrimitiveClass(java.lang.String name)

public java.security.ProtectionDomaingetProtectionDomain()
Returns the ProtectionDomain of this class. If there is a security manager installed, this method first calls the security manager's checkPermission method with a RuntimePermission("getProtectionDomain") permission to ensure it's ok to get the ProtectionDomain.

return
the ProtectionDomain of this class
throws
SecurityException if a security manager exists and its checkPermission method doesn't allow getting the ProtectionDomain.
see
java.security.ProtectionDomain
see
SecurityManager#checkPermission
see
java.lang.RuntimePermission
since
1.2

        SecurityManager sm = System.getSecurityManager();
        if (sm != null) {
            sm.checkPermission(SecurityConstants.GET_PD_PERMISSION);
        }
        java.security.ProtectionDomain pd = getProtectionDomain0();
        if (pd == null) {
            if (allPermDomain == null) {
                java.security.Permissions perms = 
                    new java.security.Permissions();
                perms.add(SecurityConstants.ALL_PERMISSION);
                allPermDomain = 
                    new java.security.ProtectionDomain(null, perms);
            }
            pd = allPermDomain;
        }
        return pd;
    
private native java.security.ProtectionDomaingetProtectionDomain0()
Returns the ProtectionDomain of this class.

private native byte[]getRawAnnotations()

private static sun.reflect.ReflectionFactorygetReflectionFactory()

        if (reflectionFactory == null) {
            reflectionFactory =  (ReflectionFactory)
                java.security.AccessController.doPrivileged
                    (new sun.reflect.ReflectionFactory.GetReflectionFactoryAction());
        }
        return reflectionFactory;
    
public java.net.URLgetResource(java.lang.String name)
Finds a resource with a given name. The rules for searching resources associated with a given class are implemented by the defining {@linkplain ClassLoader class loader} of the class. This method delegates to this object's class loader. If this object was loaded by the bootstrap class loader, the method delegates to {@link ClassLoader#getSystemResource}.

Before delegation, an absolute resource name is constructed from the given resource name using this algorithm:

  • If the name begins with a '/' ('\u002f'), then the absolute name of the resource is the portion of the name following the '/'.
  • Otherwise, the absolute name is of the following form:
    modified_package_name/name
    

    Where the modified_package_name is the package name of this object with '/' substituted for '.' ('\u002e').

param
name name of the desired resource
return
A {@link java.net.URL} object or null if no resource with this name is found
since
JDK1.1

        name = resolveName(name);
        ClassLoader cl = getClassLoader0();
        if (cl==null) {
            // A system class.
            return ClassLoader.getSystemResource(name);
        }
        return cl.getResource(name);
    
public java.io.InputStreamgetResourceAsStream(java.lang.String name)
Finds a resource with a given name. The rules for searching resources associated with a given class are implemented by the defining {@linkplain ClassLoader class loader} of the class. This method delegates to this object's class loader. If this object was loaded by the bootstrap class loader, the method delegates to {@link ClassLoader#getSystemResourceAsStream}.

Before delegation, an absolute resource name is constructed from the given resource name using this algorithm:

  • If the name begins with a '/' ('\u002f'), then the absolute name of the resource is the portion of the name following the '/'.
  • Otherwise, the absolute name is of the following form:
    modified_package_name/name
    

    Where the modified_package_name is the package name of this object with '/' substituted for '.' ('\u002e').

param
name name of the desired resource
return
A {@link java.io.InputStream} object or null if no resource with this name is found
throws
NullPointerException If name is null
since
JDK1.1

        name = resolveName(name);
        ClassLoader cl = getClassLoader0();
        if (cl==null) {
            // A system class.
            return ClassLoader.getSystemResourceAsStream(name);
        }
        return cl.getResourceAsStream(name);
    
public native java.lang.Object[]getSigners()
Gets the signers of this class.

return
the signers of this class, or null if there are no signers. In particular, this method returns null if this object represents a primitive type or void.
since
JDK1.1

private java.lang.StringgetSimpleBinaryName()
Returns the "simple binary name" of the underlying class, i.e., the binary name without the leading enclosing class name. Returns null if the underlying class is a top level class.

	Class<?> enclosingClass = getEnclosingClass();
	if (enclosingClass == null) // top level class
	    return null;
	// Otherwise, strip the enclosing class' name
	try {
	    return getName().substring(enclosingClass.getName().length());
	} catch (IndexOutOfBoundsException ex) {
	    throw new InternalError("Malformed class name");
	}
    
public java.lang.StringgetSimpleName()
Returns the simple name of the underlying class as given in the source code. Returns an empty string if the underlying class is anonymous.

The simple name of an array is the simple name of the component type with "[]" appended. In particular the simple name of an array whose component type is anonymous is "[]".

return
the simple name of the underlying class
since
1.5

	if (isArray())
	    return getComponentType().getSimpleName()+"[]";

	String simpleName = getSimpleBinaryName();
	if (simpleName == null) { // top level class
	    simpleName = getName();
	    return simpleName.substring(simpleName.lastIndexOf(".")+1); // strip the package name
	}
	// According to JLS3 "Binary Compatibility" (13.1) the binary
	// name of non-package classes (not top level) is the binary
	// name of the immediately enclosing class followed by a '$' followed by:
	// (for nested and inner classes): the simple name.
	// (for local classes): 1 or more digits followed by the simple name.
	// (for anonymous classes): 1 or more digits.

	// Since getSimpleBinaryName() will strip the binary name of
	// the immediatly enclosing class, we are now looking at a
	// string that matches the regular expression "\$[0-9]*"
	// followed by a simple name (considering the simple of an
	// anonymous class to be the empty string).

	// Remove leading "\$[0-9]*" from the name
	int length = simpleName.length();
	if (length < 1 || simpleName.charAt(0) != '$")
	    throw new InternalError("Malformed class name");
	int index = 1;
	while (index < length && isAsciiDigit(simpleName.charAt(index)))
	    index++;
	// Eventually, this is the empty string iff this is an anonymous class
	return simpleName.substring(index);
    
public native java.lang.ClassgetSuperclass()
Returns the Class representing the superclass of the entity (class, interface, primitive type or void) represented by this Class. If this Class represents either the Object class, an interface, a primitive type, or void, then null is returned. If this object represents an array class then the Class object representing the Object class is returned.

return
the superclass of the class represented by this object.

public java.lang.reflect.TypeVariable[]getTypeParameters()
Returns an array of TypeVariable objects that represent the type variables declared by the generic declaration represented by this GenericDeclaration object, in declaration order. Returns an array of length 0 if the underlying generic declaration declares no type variables.

return
an array of TypeVariable objects that represent the type variables declared by this generic declaration
throws
GenericSignatureFormatError if the generic signature of this generic declaration does not conform to the format specified in the Java Virtual Machine Specification, 3rd edition
since
1.5

	if (getGenericSignature() != null) 
	    return (TypeVariable<Class<T>>[])getGenericInfo().getTypeParameters();
	else
	    return (TypeVariable<Class<T>>[])new TypeVariable[0];
    
private synchronized voidinitAnnotationsIfNecessary()

        clearCachesOnClassRedefinition();
        if (annotations != null)
            return;
        declaredAnnotations = AnnotationParser.parseAnnotations(
            getRawAnnotations(), getConstantPool(), this);
        Class<?> superClass = getSuperclass();
        if (superClass == null) {
            annotations = declaredAnnotations;
        } else {
            annotations = new HashMap<Class, Annotation>();
            superClass.initAnnotationsIfNecessary();
            for (Map.Entry<Class, Annotation> e : superClass.annotations.entrySet()) {
                Class annotationClass = e.getKey();
                if (AnnotationType.getInstance(annotationClass).isInherited())
                    annotations.put(annotationClass, e.getValue());
            }
            annotations.putAll(declaredAnnotations);
        }
    
public booleanisAnnotation()
Returns true if this Class object represents an annotation type. Note that if this method returns true, {@link #isInterface()} would also return true, as all annotation types are also interfaces.

return
true if this class object represents an annotation type; false otherwise
since
1.5

	return (getModifiers() & ANNOTATION) != 0;
    
public booleanisAnnotationPresent(java.lang.Class annotationClass)

throws
NullPointerException {@inheritDoc}
since
1.5

        if (annotationClass == null)
            throw new NullPointerException();

        return getAnnotation(annotationClass) != null;
    
public booleanisAnonymousClass()
Returns true if and only if the underlying class is an anonymous class.

return
true if and only if this class is an anonymous class.
since
1.5

	return "".equals(getSimpleName());
    
public native booleanisArray()
Determines if this Class object represents an array class.

return
true if this object represents an array class; false otherwise.
since
JDK1.1

private static booleanisAsciiDigit(char c)
Character.isDigit answers true to some non-ascii digits. This one does not.

	return '0" <= c && c <= '9";
    
public native booleanisAssignableFrom(java.lang.Class cls)
Determines if the class or interface represented by this Class object is either the same as, or is a superclass or superinterface of, the class or interface represented by the specified Class parameter. It returns true if so; otherwise it returns false. If this Class object represents a primitive type, this method returns true if the specified Class parameter is exactly this Class object; otherwise it returns false.

Specifically, this method tests whether the type represented by the specified Class parameter can be converted to the type represented by this Class object via an identity conversion or via a widening reference conversion. See The Java Language Specification, sections 5.1.1 and 5.1.4 , for details.

param
cls the Class object to be checked
return
the boolean value indicating whether objects of the type cls can be assigned to objects of this class
exception
NullPointerException if the specified Class parameter is null.
since
JDK1.1

public booleanisEnum()
Returns true if and only if this class was declared as an enum in the source code.

return
true if and only if this class was declared as an enum in the source code
since
1.5

	// An enum must both directly extend java.lang.Enum and have
	// the ENUM bit set; classes for specialized enum constants
	// don't do the former.
	return (this.getModifiers() & ENUM) != 0 && 
	this.getSuperclass() == java.lang.Enum.class;
    
public native booleanisInstance(java.lang.Object obj)
Determines if the specified Object is assignment-compatible with the object represented by this Class. This method is the dynamic equivalent of the Java language instanceof operator. The method returns true if the specified Object argument is non-null and can be cast to the reference type represented by this Class object without raising a ClassCastException. It returns false otherwise.

Specifically, if this Class object represents a declared class, this method returns true if the specified Object argument is an instance of the represented class (or of any of its subclasses); it returns false otherwise. If this Class object represents an array class, this method returns true if the specified Object argument can be converted to an object of the array class by an identity conversion or by a widening reference conversion; it returns false otherwise. If this Class object represents an interface, this method returns true if the class or any superclass of the specified Object argument implements this interface; it returns false otherwise. If this Class object represents a primitive type, this method returns false.

param
obj the object to check
return
true if obj is an instance of this class
since
JDK1.1

public native booleanisInterface()
Determines if the specified Class object represents an interface type.

return
true if this object represents an interface; false otherwise.

public booleanisLocalClass()
Returns true if and only if the underlying class is a local class.

return
true if and only if this class is a local class.
since
1.5

	return isLocalOrAnonymousClass() && !isAnonymousClass();
    
private booleanisLocalOrAnonymousClass()
Returns true if this is a local class or an anonymous class. Returns false otherwise.

	// JVM Spec 4.8.6: A class must have an EnclosingMethod
	// attribute if and only if it is a local class or an
	// anonymous class.
	return getEnclosingMethodInfo() != null;
    
public booleanisMemberClass()
Returns true if and only if the underlying class is a member class.

return
true if and only if this class is a member class.
since
1.5

	return getSimpleBinaryName() != null && !isLocalOrAnonymousClass();
    
public native booleanisPrimitive()
Determines if the specified Class object represents a primitive type.

There are nine predefined Class objects to represent the eight primitive types and void. These are created by the Java Virtual Machine, and have the same names as the primitive types that they represent, namely boolean, byte, char, short, int, long, float, and double.

These objects may only be accessed via the following public static final variables, and are the only Class objects for which this method returns true.

return
true if and only if this class represents a primitive type
see
java.lang.Boolean#TYPE
see
java.lang.Character#TYPE
see
java.lang.Byte#TYPE
see
java.lang.Short#TYPE
see
java.lang.Integer#TYPE
see
java.lang.Long#TYPE
see
java.lang.Float#TYPE
see
java.lang.Double#TYPE
see
java.lang.Void#TYPE
since
JDK1.1

public booleanisSynthetic()
Returns true if this class is a synthetic class; returns false otherwise.

return
true if and only if this class is a synthetic class as defined by the Java Language Specification.
since
1.5

	return (getModifiers() & SYNTHETIC) != 0;
    
public TnewInstance()
Creates a new instance of the class represented by this Class object. The class is instantiated as if by a new expression with an empty argument list. The class is initialized if it has not already been initialized.

Note that this method propagates any exception thrown by the nullary constructor, including a checked exception. Use of this method effectively bypasses the compile-time exception checking that would otherwise be performed by the compiler. The {@link java.lang.reflect.Constructor#newInstance(java.lang.Object...) Constructor.newInstance} method avoids this problem by wrapping any exception thrown by the constructor in a (checked) {@link java.lang.reflect.InvocationTargetException}.

return
a newly allocated instance of the class represented by this object.
exception
IllegalAccessException if the class or its nullary constructor is not accessible.
exception
InstantiationException if this Class represents an abstract class, an interface, an array class, a primitive type, or void; or if the class has no nullary constructor; or if the instantiation fails for some other reason.
exception
ExceptionInInitializerError if the initialization provoked by this method fails.
exception
SecurityException If a security manager, s, is present and any of the following conditions is met:
  • invocation of {@link SecurityManager#checkMemberAccess s.checkMemberAccess(this, Member.PUBLIC)} denies creation of new instances of this class
  • the caller's class loader is not the same as or an ancestor of the class loader for the current class and invocation of {@link SecurityManager#checkPackageAccess s.checkPackageAccess()} denies access to the package of this class

	if (System.getSecurityManager() != null) {
	    checkMemberAccess(Member.PUBLIC, ClassLoader.getCallerClassLoader());
	}
	return newInstance0();
    
private TnewInstance0()

        // NOTE: the following code may not be strictly correct under
        // the current Java memory model.

        // Constructor lookup
        if (cachedConstructor == null) {
            if (this == Class.class) {
                throw new IllegalAccessException(
                    "Can not call newInstance() on the Class for java.lang.Class"
                );
            }
            try {
		Class[] empty = {};
                final Constructor<T> c = getConstructor0(empty, Member.DECLARED);
                // Disable accessibility checks on the constructor
                // since we have to do the security check here anyway
                // (the stack depth is wrong for the Constructor's
                // security check to work)
                java.security.AccessController.doPrivileged
                    (new java.security.PrivilegedAction() {
                            public Object run() {
                                c.setAccessible(true);
                                return null;
                            }
                        });
                cachedConstructor = c;
            } catch (NoSuchMethodException e) {
                throw new InstantiationException(getName());
            }
        }
        Constructor<T> tmpConstructor = cachedConstructor;
        // Security check (same as in java.lang.reflect.Constructor)
        int modifiers = tmpConstructor.getModifiers();
        if (!Reflection.quickCheckMemberAccess(this, modifiers)) {
            Class caller = Reflection.getCallerClass(3);
            if (newInstanceCallerCache != caller) {
                Reflection.ensureMemberAccess(caller, this, null, modifiers);
                newInstanceCallerCache = caller;
            }
        }
        // Run constructor
        try {
            return tmpConstructor.newInstance((Object[])null);
        } catch (InvocationTargetException e) {
            Unsafe.getUnsafe().throwException(e.getTargetException());
            // Not reached
            return null;
        }
    
private java.lang.reflect.Constructor[]privateGetDeclaredConstructors(boolean publicOnly)

        checkInitted();
        Constructor[] res = null;
        if (useCaches) {
            clearCachesOnClassRedefinition();
            if (publicOnly) {
                if (publicConstructors != null) {
                    res = (Constructor[]) publicConstructors.get();
                }
            } else {
                if (declaredConstructors != null) {
                    res = (Constructor[]) declaredConstructors.get();
                }
            }
            if (res != null) return res;
        }
        // No cached value available; request value from VM
        if (isInterface()) {
            res = new Constructor[0];
        } else {
            res = getDeclaredConstructors0(publicOnly);
        }
        if (useCaches) {
            if (publicOnly) {
                publicConstructors = new SoftReference(res);
            } else {
                declaredConstructors = new SoftReference(res);
            }
        }
        return res;
    
private java.lang.reflect.Field[]privateGetDeclaredFields(boolean publicOnly)

        checkInitted();
        Field[] res = null;
        if (useCaches) {
            clearCachesOnClassRedefinition();
            if (publicOnly) {
                if (declaredPublicFields != null) {
                    res = (Field[]) declaredPublicFields.get();
                }
            } else {
                if (declaredFields != null) {
                    res = (Field[]) declaredFields.get();
                }
            }
            if (res != null) return res;
        }
        // No cached value available; request value from VM
        res = Reflection.filterFields(this, getDeclaredFields0(publicOnly));
        if (useCaches) {
            if (publicOnly) {
                declaredPublicFields = new SoftReference(res);
            } else {
                declaredFields = new SoftReference(res);
            }
        }
        return res;
    
private java.lang.reflect.Method[]privateGetDeclaredMethods(boolean publicOnly)

        checkInitted();
        Method[] res = null;
        if (useCaches) {
            clearCachesOnClassRedefinition();
            if (publicOnly) {
                if (declaredPublicMethods != null) {
                    res = (Method[]) declaredPublicMethods.get();
                }
            } else {
                if (declaredMethods != null) {
                    res = (Method[]) declaredMethods.get();
                }
            }
            if (res != null) return res;
        }
        // No cached value available; request value from VM
        res = getDeclaredMethods0(publicOnly);
        if (useCaches) {
            if (publicOnly) {
                declaredPublicMethods = new SoftReference(res);
            } else {
                declaredMethods = new SoftReference(res);
            }
        }
        return res;
    
private java.lang.reflect.Field[]privateGetPublicFields(java.util.Set traversedInterfaces)

        checkInitted();
        Field[] res = null;
        if (useCaches) {
            clearCachesOnClassRedefinition();
            if (publicFields != null) {
                res = (Field[]) publicFields.get();
            }
            if (res != null) return res;
        }

        // No cached value available; compute value recursively.
        // Traverse in correct order for getField().
        List fields = new ArrayList();
        if (traversedInterfaces == null) {
            traversedInterfaces = new HashSet();
        }
        
        // Local fields
        Field[] tmp = privateGetDeclaredFields(true);
        addAll(fields, tmp);

        // Direct superinterfaces, recursively
        Class[] interfaces = getInterfaces();
        for (int i = 0; i < interfaces.length; i++) {
            Class c = interfaces[i];
            if (!traversedInterfaces.contains(c)) {
                traversedInterfaces.add(c);
                addAll(fields, c.privateGetPublicFields(traversedInterfaces));
            }
        }

        // Direct superclass, recursively
        if (!isInterface()) {
            Class c = getSuperclass();
            if (c != null) {
                addAll(fields, c.privateGetPublicFields(traversedInterfaces));
            }
        }

        res = new Field[fields.size()];
        fields.toArray(res);
        if (useCaches) {
            publicFields = new SoftReference(res);
        }
        return res;
    
private java.lang.reflect.Method[]privateGetPublicMethods()

        checkInitted();
        Method[] res = null;
        if (useCaches) {
            clearCachesOnClassRedefinition();
            if (publicMethods != null) {
                res = (Method[]) publicMethods.get();
            }
            if (res != null) return res;
        }

        // No cached value available; compute value recursively.
        // Start by fetching public declared methods
        MethodArray methods = new MethodArray();
        {
            Method[] tmp = privateGetDeclaredMethods(true);
            methods.addAll(tmp);
        }
        // Now recur over superclass and direct superinterfaces.
        // Go over superinterfaces first so we can more easily filter
        // out concrete implementations inherited from superclasses at
        // the end.
        MethodArray inheritedMethods = new MethodArray();
        Class[] interfaces = getInterfaces();
        for (int i = 0; i < interfaces.length; i++) {
            inheritedMethods.addAll(interfaces[i].privateGetPublicMethods());
        }
        if (!isInterface()) {
            Class c = getSuperclass();
            if (c != null) {
                MethodArray supers = new MethodArray();
                supers.addAll(c.privateGetPublicMethods());
                // Filter out concrete implementations of any
                // interface methods
                for (int i = 0; i < supers.length(); i++) {
                    Method m = supers.get(i);
                    if (m != null && !Modifier.isAbstract(m.getModifiers())) {
                        inheritedMethods.removeByNameAndSignature(m);
                    }
                }
                // Insert superclass's inherited methods before
                // superinterfaces' to satisfy getMethod's search
                // order
                supers.addAll(inheritedMethods);
                inheritedMethods = supers;
            }
        }
        // Filter out all local methods from inherited ones
        for (int i = 0; i < methods.length(); i++) {
            Method m = methods.get(i);
            inheritedMethods.removeByNameAndSignature(m);
        }
        methods.addAllIfNotPresent(inheritedMethods);
        methods.compactAndTrim();
        res = methods.getArray();
        if (useCaches) {
            publicMethods = new SoftReference(res);
        }
        return res;
    
private static native voidregisterNatives()

private java.lang.StringresolveName(java.lang.String name)
Add a package name prefix if the name is not absolute Remove leading "/" if name is absolute

        if (name == null) {
            return name;
        }
        if (!name.startsWith("/")) {
            Class c = this;
            while (c.isArray()) {
                c = c.getComponentType();
            }
            String baseName = c.getName();
            int index = baseName.lastIndexOf('.");
            if (index != -1) {
                name = baseName.substring(0, index).replace('.", '/")
                    +"/"+name;
            }
        } else {
            name = name.substring(1);
        }
        return name;
    
private java.lang.reflect.FieldsearchFields(java.lang.reflect.Field[] fields, java.lang.String name)

        String internedName = name.intern();
        for (int i = 0; i < fields.length; i++) {
            if (fields[i].getName() == internedName) {
                return getReflectionFactory().copyField(fields[i]);
            }
        }
        return null;
    
private static java.lang.reflect.MethodsearchMethods(java.lang.reflect.Method[] methods, java.lang.String name, java.lang.Class[] parameterTypes)

 	Method res = null;
        String internedName = name.intern();
        for (int i = 0; i < methods.length; i++) {
	    Method m = methods[i];
            if (m.getName() == internedName
		&& arrayContentsEq(parameterTypes, m.getParameterTypes())
		&& (res == null
		    || res.getReturnType().isAssignableFrom(m.getReturnType())))
		res = m;
        }

	return (res == null ? res : getReflectionFactory().copyMethod(res));
    
voidsetAnnotationType(sun.reflect.annotation.AnnotationType type)

        annotationType = type;
    
native voidsetProtectionDomain0(java.security.ProtectionDomain pd)
Set the ProtectionDomain for this class. Called by ClassLoader.defineClass.

native voidsetSigners(java.lang.Object[] signers)
Set the signers of this class.

private static java.lang.ClasstoClass(java.lang.reflect.Type o)

	if (o instanceof GenericArrayType)
	    return Array.newInstance(toClass(((GenericArrayType)o).getGenericComponentType()),
				     0)
		.getClass();
	return (Class)o;
     
public java.lang.StringtoString()
Converts the object to a string. The string representation is the string "class" or "interface", followed by a space, and then by the fully qualified name of the class in the format returned by getName. If this Class object represents a primitive type, this method returns the name of the primitive type. If this Class object represents void this method returns "void".

return
a string representation of this class object.

        return (isInterface() ? "interface " : (isPrimitive() ? "" : "class "))
            + getName();