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/ui/text/JavaSourceViewerConfiguration.java
return reconciler;
	}
	/*
	 * @see SourceViewerConfiguration#getContentAssistant(ISourceViewer)
	 */
	public IContentAssistant getContentAssistant(ISourceViewer sourceViewer) {
		
		if (getEditor() != null) {
		
			ContentAssistant assistant= new ContentAssistant();
			assistant.setDocumentPartitioning(getConfiguredDocumentPartitioning(sourceViewer));
			
			assistant.setRestoreCompletionProposalSize(getSettings("completion_proposal_size")); 
			
			IContentAssistProcessor processor= new JavaCompletionProcessor(getEditor());
			assistant.setContentAssistProcessor(processor, IDocument.DEFAULT_CONTENT_TYPE);
				
			assistant.setContentAssistProcessor(processor, IJavaPartitions.JAVA_STRING);
			assistant.setContentAssistProcessor(processor, IJavaPartitions.JAVA_SINGLE_LINE_COMMENT);
			
			processor= new WordCompletionProcessor();
			assistant.setContentAssistProcessor(processor, IJavaPartitions.JAVA_MULTI_LINE_COMMENT);
			assistant.setContentAssistProcessor(processor, IJavaPartitions.JAVA_SINGLE_LINE_COMMENT);
			assistant.setContentAssistProcessor(processor, IJavaPartitions.JAVA_STRING);
			assistant.setContentAssistProcessor(new JavaDocCompletionProcessor(getEditor()), IJavaPartitions.JAVA_DOC);
			
			ContentAssistPreference.configure(assistant, getNewPreferenceStore());
			
			assistant.setContextInformationPopupOrientation(IContentAssistant.CONTEXT_INFO_ABOVE);