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
public RuleBasedScanner getJavaDocScanner() {
		return fJavaDocScanner;
	}
	
	/**
	 * Returns the color manager for this configuration.
	 *
	 * @return the color manager
	 */
	protected IColorManager getColorManager() {
		return fJavaTextTools.getColorManager();
	}
	
	/**
	 * Returns the editor in which the configured viewer(s) will reside.
	 *
	 * @return the enclosing editor
	 */
	protected ITextEditor getEditor() {
		return fTextEditor;
	}
	
	/**
	 * Returns the preference store used by this configuration to initialize
	 * the individual bits and pieces.
	 * <p>
	 * FIXME: deprecate when new API is stabilized.
	 * </p> 
	 * 
	 * @return the preference store used to initialize this configuration