Bug 7914 Cannot copy a Java project in the packages view
There is no way to copy a Java project in the packages view. You can copy a project in the Navigator. This is a functional gap.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/reorg/JdtDeleteResourceAction.java
private boolean hasOnlyProjects(){
		return (! getStructuredSelection().isEmpty() && getStructuredSelection().size() == getProjects().size());
	}
	
	private void deleteProjects(){
		DeleteResourceAction action= new DeleteResourceAction(JavaPlugin.getActiveWorkbenchShell());
		action.selectionChanged(getStructuredSelection());
		action.run();
	}
	
	private static boolean isOkToDeleteReadOnly(){
			String msg= ReorgMessages.getString("deleteAction.confirmReadOnly"); 
			String title= ReorgMessages.getString("deleteAction.checkDeletion"); 
			return MessageDialog.openQuestion(
					JavaPlugin.getActiveWorkbenchShell(),
					title,
					msg);
	}
	
	private boolean hasReadOnlyResources(){
		for (Iterator iter= getStructuredSelection().iterator(); iter.hasNext();){	
			if (ReorgUtils.shouldConfirmReadOnly(iter.next()))
				return true;
		}
		return false;
	}
	/* non java-doc
	 * @see IRefactoringAction#canOperateOn(IStructuredSelection)
	 */
	public boolean canOperateOn(IStructuredSelection selection) {