Bug 114492 [WorkingSets] working sets: edit dialog should not display an error on open
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/workingsets/JavaWorkingSetPage.java
deselectAllButton.setLayoutData(new GridData());
		SWTUtil.setButtonDimensionHint(deselectAllButton);
		
		if (fWorkingSet != null)
			fWorkingSetName.setText(fWorkingSet.getName());
		initializeCheckedState();
		validateInput();
		Dialog.applyDialogFont(composite);
		 
		JavaUIHelp.setHelp(fTree, IJavaHelpContextIds.JAVA_WORKING_SET_PAGE);
	}
	/*
	 * Implements method from IWorkingSetPage
	 */
	public IWorkingSet getSelection() {
		return fWorkingSet;
	}
	/*
	 * Implements method from IWorkingSetPage
	 */
	public void setSelection(IWorkingSet workingSet) {
		Assert.isNotNull(workingSet, "Working set must not be null"); 
		fWorkingSet= workingSet;
		if (getContainer() != null && getShell() != null && fWorkingSetName != null) {
			fFirstCheck= false;
			fWorkingSetName.setText(fWorkingSet.getName());
			initializeCheckedState();
			validateInput();
		}
	}