Bug 18266 Turning off lightbulb preference doesn't turn the lights off right away
When you turn off the lightbulb preference, editors with existing lightbulbs continue to show them. Closing and reopening the editors gets rid of them.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavaEditorPreferencePage.java
label= JavaUIMessages.getString("JavaEditorPreferencePage.highlightCurrentLine"); 
		addCheckBox(behaviorComposite, label, CompilationUnitEditor.CURRENT_LINE, 0);
				
		label= JavaUIMessages.getString("JavaEditorPreferencePage.showPrintMargin"); 
		addCheckBox(behaviorComposite, label, CompilationUnitEditor.PRINT_MARGIN, 0);
		Label l= new Label(behaviorComposite, SWT.LEFT );
		GridData gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
		gd.horizontalSpan= 2;
		gd.heightHint= convertHeightInCharsToPixels(1) / 2;
		l.setLayoutData(gd);
		
		l= new Label(behaviorComposite, SWT.LEFT);
		l.setText(JavaUIMessages.getString("JavaEditorPreferencePage.appearanceOptions")); 
		gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
		gd.horizontalSpan= 2;
		l.setLayoutData(gd);
		Composite editorComposite= new Composite(behaviorComposite, SWT.NONE);
		layout= new GridLayout();
		layout.numColumns= 2;
		layout.marginHeight= 0;
		layout.marginWidth= 0;
		editorComposite.setLayout(layout);
		gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.FILL_VERTICAL);
		gd.horizontalSpan= 2;
		editorComposite.setLayoutData(gd);		
		fAppearanceColorList= new List(editorComposite, SWT.SINGLE | SWT.V_SCROLL | SWT.BORDER);
		gd= new GridData(GridData.FILL_BOTH);
		gd.heightHint= convertHeightInCharsToPixels(5);
		fAppearanceColorList.setLayoutData(gd);