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
/**
		 * Creates a new navigate next sub-word action.
		 */
		public NavigateNextSubWordAction() {
			super(ST.WORD_NEXT);
		}
		/*
		 * @see org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.NextSubWordAction#setCaretPosition(int)
		 */
		protected void setCaretPosition(final int position) {
			getTextWidget().setCaretOffset(modelOffset2WidgetOffset(getSourceViewer(), position));
		}
	}
	/**
	 * Text operation action to delete the next sub-word.
	 * 
	 * @since 3.0
	 */
	protected class DeleteNextSubWordAction extends NextSubWordAction {