Bug 53010 Editor preferences do not take effect on open editors
I-20040224 Go to the Java > Editor > Syntax preference page. Change the keyword color to red. Press Ok. At this point, we use to see the preview update. Not on this build (problem #1). Press Ok, and close the pref dialog. The java editor that was already open did not update. I had to close it and reopen it for the colors to take effect (problem #2)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
/*
	 * @see org.eclipse.ui.texteditor.ExtendedTextEditor#createChangeHover()
	 */
	protected LineChangeHover createChangeHover() {
		return new JavaChangeHover(IJavaPartitions.JAVA_PARTITIONING);
	}
	protected boolean isPrefQuickDiffAlwaysOn() {
		return false; 
	}
	/*
	 * @see org.eclipse.ui.texteditor.AbstractTextEditor#createNavigationActions()
	 */
	protected void createNavigationActions() {
		super.createNavigationActions();
		final StyledText textWidget= getSourceViewer().getTextWidget();
		IAction action= new SmartLineStartAction(textWidget, false);
		action.setActionDefinitionId(ITextEditorActionDefinitionIds.LINE_START);
		setAction(ITextEditorActionDefinitionIds.LINE_START, action);
		action= new SmartLineStartAction(textWidget, true);
		action.setActionDefinitionId(ITextEditorActionDefinitionIds.SELECT_LINE_START);
		setAction(ITextEditorActionDefinitionIds.SELECT_LINE_START, action);
		action= new NavigatePreviousSubWordAction();
		action.setActionDefinitionId(ITextEditorActionDefinitionIds.WORD_PREVIOUS);
		setAction(ITextEditorActionDefinitionIds.WORD_PREVIOUS, action);
		textWidget.setKeyBinding(SWT.CTRL | SWT.ARROW_LEFT, SWT.NULL);
		action= new NavigateNextSubWordAction();
		action.setActionDefinitionId(ITextEditorActionDefinitionIds.WORD_NEXT);
		setAction(ITextEditorActionDefinitionIds.WORD_NEXT, action);
		textWidget.setKeyBinding(SWT.CTRL | SWT.ARROW_RIGHT, SWT.NULL);