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
fTextEditor= editor;
		fDocumentPartitioning= partitioning;
		setNewPreferenceStore(createNewPreferenceStore());
	}
	/**
	 * Creates a new Java source viewer configuration for viewers in the given editor 
	 * using the given Java tools.
	 *
	 * @param tools the Java text tools to be used
	 * @param editor the editor in which the configured viewer(s) will reside
	 * @see JavaTextTools
	 */
	public JavaSourceViewerConfiguration(JavaTextTools tools, ITextEditor editor) {
		this(tools, editor, null);
	}
	
	/**
	 * Returns the Java source code scanner for this configuration.
	 *
	 * @return the Java source code scanner
	 */
	public RuleBasedScanner getCodeScanner() {
		return fCodeScanner;
	}
	
	/**
	 * Returns the Java multiline comment scanner for this configuration.
	 *
	 * @return the Java multiline comment scanner
	 * @since 2.0