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JavaRunner.javaAPI DocExample3260Sun Oct 25 18:13:36 GMT 1998None

JavaRunner

public class JavaRunner extends Object implements Runnable

Fields Summary
static final int
numArgs
private JarLoader
jrl
private Object[]
args
private String
className
Constructors Summary
JavaRunner(JarLoader jrl, String className, Object[] args)


	      
	    this.jrl = jrl;
	    this.className = className;
	    this.args = args;
Methods Summary
static java.lang.Object[]getArgs(java.lang.String[] args)

		String passArgs[] = new String[args.length - numArgs];
		for (int i = numArgs; i < args.length; i++)
			passArgs[i - numArgs] = args[i];

		Object wrapArgs[] = new Object[1];
		wrapArgs[0] = passArgs;
		return wrapArgs;
voidinvokeMain(java.lang.Class clazz)

		Class argList[] = new Class[1];
		String strArray[] = new String[1];
		argList[0] = strArray.getClass();
		Method mainMethod = null;
		try {
			mainMethod = clazz.getMethod("main", argList);
		} catch (NoSuchMethodException nsme) {
			System.out.println("No main method in " + clazz.getName());
			System.exit(-1);
		}
	
		try {
			mainMethod.invoke(null, args);
		} catch (Throwable e) {
			e.printStackTrace();
			if (e instanceof InvocationTargetException)
				e = ((InvocationTargetException) e)
							.getTargetException();
			System.out.println("Procedure exited with exception " + e);
			e.printStackTrace();
		}
public static voidmain(java.lang.String[] args)

		System.setSecurityManager(new JavaRunnerManager());
		Class self = JavaRunner.class;
		JarLoader jrl = new JarLoader(args[0], self.getClassLoader());
		jrl.readJarFile(args[1]);
		ThreadGroup tg = jrl.getThreadGroup();
		Thread t = new Thread(tg,
				new JavaRunner(jrl, args[2], getArgs(args)));
		t.start();
		try {
			t.join();
		} catch (InterruptedException ie) {
			System.out.println("Thread was interrupted");
		}
public voidrun()

		Class target = null;
		try {
			target = jrl.loadClass(className);
			invokeMain(target);
		} catch (ClassNotFoundException cnfe) {
			System.out.println("Can't load " + className);
		}