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
if (message != null)
				return message;
		}
		return super.getStatusBanner(status);
	}
	
	/*
	 * @see StatusTextEditor#getStatusMessage(IStatus)
	 */
	protected String getStatusMessage(IStatus status) {
		if (fEncodingSupport != null) {
			String message= fEncodingSupport.getStatusMessage(status);
			if (message != null)
				return message;
		}
		return super.getStatusMessage(status);
	}
	
	/*
	 * @see AbstractTextEditor#doSetInput
	 */
	protected void doSetInput(IEditorInput input) throws CoreException {
		if (fEncodingSupport != null)
			fEncodingSupport.reset();
		setOutlinePageInput(fOutlinePage, input);
		
		ISourceViewer sourceViewer= getSourceViewer();
		if (!(sourceViewer instanceof ISourceViewerExtension2)) {
			setNewPreferenceStore(createNewPreferenceStore(input));
			super.doSetInput(input);