fPrefControl = createContents(root);
fBlockControl = createContents(root);
	public void createControl(Composite parent) {						Composite root= new Composite(parent, SWT.NONE);		GridLayout l= new GridLayout();		l.numColumns= 1;		l.verticalSpacing = 10;		l.makeColumnsEqualWidth= true;		root.setLayout(l);				createJarLabel(root);				fPrefControl = createContents(root);		setTitle(DebugUIUtils.getResourceString(PAGE_TITLE));		setDescription(DebugUIUtils.getResourceString(PAGE_DESCRIPTION));		setImageDescriptor(JavaPluginImages.DESC_WIZBAN_JAVA_LAUNCH);				// spacer		new Label(root, SWT.NONE);				fNoSourceButton= new Button(root, SWT.CHECK);		fNoSourceButton.setText(DebugUIUtils.getResourceString(NO_SOURCE));		fNoSourceButton.addSelectionListener(			new SelectionListener() {				public void widgetSelected(SelectionEvent e) {					updateButtons();				}				public void widgetDefaultSelected(SelectionEvent e) {					updateButtons();				}							}		);				setControl(root);	}