super(arg0);
return super.cancelledKeys();
isImplCloseSelectorCalled = true;
return keys;
super.deregister(key);
return new MockAbstractSelector(SelectorProvider.provider());
isRegisterCalled = true; SelectionKey key = new MockSelectionKey(this, arg0); keys.add(key); return key;
return 0;
return null;
super.begin();
super.end();