Bug 20700 Code assist activates help UI
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/ClassFileEditor.java
fSeparatorColor= new Color(display, 152, 170, 203);
		
				JFaceResources.getFontRegistry().addListener(this);
		
				fScrolledComposite= new ScrolledComposite(parent, SWT.H_SCROLL | SWT.V_SCROLL);
				fScrolledComposite.setAlwaysShowScrollBars(false);
				fScrolledComposite.setExpandHorizontal(true);
				fScrolledComposite.setExpandVertical(true);
				fScrolledComposite.addDisposeListener(new DisposeListener() {
					public void widgetDisposed(DisposeEvent e) {
						JFaceResources.getFontRegistry().removeListener(SourceAttachmentForm.this);
						fScrolledComposite= null;
						fSeparatorColor.dispose();
						fSeparatorColor= null;				
						fBannerLabels.clear();
						fHeaderLabels.clear();
						if (fFont != null) {
							fFont.dispose();
							fFont= null;
						}
					}
				});
				
				fScrolledComposite.addControlListener(new ControlListener() {
					public void controlMoved(ControlEvent e) {}
					public void controlResized(ControlEvent e) {
						Rectangle clientArea = fScrolledComposite.getClientArea();
						
						ScrollBar verticalBar= fScrolledComposite.getVerticalBar();
						verticalBar.setIncrement(VERTICAL_SCROLL_INCREMENT);