Bug 38485 add constructors: incorrect text selection after [code manipulation]
20030604 class A extedns ArrayList{ } after adding all 3 constructors, the text selection is set to something in the middle of a comment not, to to something meaningful
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/actions/AddUnimplementedConstructorsAction.java
*/
	protected void selectionChanged(ITextSelection selection) {
	}
	
	/* (non-Javadoc)
	 * Method declared on SelectionDispatchAction
	 */
	public void run(ITextSelection selection) {
		Shell shell= getShell();
		try {
			IType type= SelectionConverter.getTypeAtOffset(fEditor);
			if (type != null)
				run(shell, type, fEditor, true);
			else
				MessageDialog.openInformation(shell, getDialogTitle(), ActionMessages.getString("AddUnimplementedConstructorsAction.not_applicable")); 
		} catch (JavaModelException e) {
			ExceptionHandler.handle(e, getShell(), getDialogTitle(), null);
		} catch (CoreException e) {
			ExceptionHandler.handle(e, getShell(), getDialogTitle(), null);
		}
	}
	
	private boolean checkEnabledEditor() {
		return fEditor != null && SelectionConverter.canOperateOn(fEditor);
	}	
	
	
	
	private void run(Shell shell, IType type, IEditorPart editor, boolean activatedFromEditor) throws CoreException {
		if (!ElementValidator.check(type, getShell(), getDialogTitle(), activatedFromEditor)) {