Bug 9304 new class wizard: incorrect terminology used
1. new class wizard 2. press Add.. in interfaces 3. the dialog you see has a title 'Extended Interfaces Selection' this is incorrect - it should be 'Implemented Interfaces Selection' (this bug was pointed out on the wsad newsgroup)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/TypePage.java
if (unimplemented != null) {
				for (int i= 0; i < unimplemented.length; i++) {
					newMethods.add(unimplemented[i]);					
				}
			}
		}
		return (String[]) newMethods.toArray(new String[newMethods.size()]);		
	}
	
	
	/**
	 * @see NewElementWizardPage#getRunnable
	 */		
	public IRunnableWithProgress getRunnable() {				
		return new IRunnableWithProgress() {
			public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
				try {
					if (monitor == null) {
						monitor= new NullProgressMonitor();
					}
					createType(monitor);
				} catch (CoreException e) {
					throw new InvocationTargetException(e);
				} 				
			}
		};
	}	
		
			
}