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
* Preference key for inserting spaces rather than tabs.
	 * 
	 * @since 2.0
	 */
	public final static String SPACES_FOR_TABS= PreferenceConstants.EDITOR_SPACES_FOR_TABS;
	
	private JavaTextTools fJavaTextTools;
	private ITextEditor fTextEditor;
	private String fDocumentPartitioning;
	
	/**
	 * The Java source code scanner
	 *
	 * @since 3.0
	 */
	private AbstractJavaScanner fCodeScanner;
	/** 
	 * The Java multiline comment scanner 
	 *
	 * @since 3.0
	 */
	private AbstractJavaScanner fMultilineCommentScanner;
	/**
	 * The Java singleline comment scanner
	 *
	 * @since 3.0
	 */
	private AbstractJavaScanner fSinglelineCommentScanner;
	/**
	 * The Java string scanner