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
*
	 * @since 3.0
	 */
	private AbstractJavaScanner fStringScanner;
	/**
	 * The JavaDoc scanner
	 *
	 * @since 3.0
	 */
	private AbstractJavaScanner fJavaDocScanner;
	/**
	 * The new preference store
	 * <p>Note that this is work in progress and still subject to change.</p>
	 *
	 * @since 3.0
	 */
	private IPreferenceStore fNewPreferenceStore;
	
	/**
	 * Creates a new Java source viewer configuration for viewers in the given editor 
	 * using the given Java tools and the specified document partitioning.
	 *
	 * @param tools the Java text tools to be used
	 * @param editor the editor in which the configured viewer(s) will reside
	 * @param partitioning the document partitioning for this configuration
	 * @see JavaTextTools
	 * @since 3.0
	 */
	public JavaSourceViewerConfiguration(JavaTextTools tools, ITextEditor editor, String partitioning) {
		fJavaTextTools= tools;