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/internal/ui/javaeditor/JavaEditor.java
* 
		 * @param options The options to wrap.
		 */
		public OptionsAdapter(Map options, IPreferenceStore mockupPreferenceStore, IPropertyChangeEventFilter filter) {
			fMockupPreferenceStore= mockupPreferenceStore;
			fOptions= options;
			setFilter(filter);
		}
		/**
		 * {@inheritDoc}
		 */
		public void addPropertyChangeListener(IPropertyChangeListener listener) {
			if (fListeners.size() == 0)
				fMockupPreferenceStore.addPropertyChangeListener(fListener);
			fListeners.add(listener);
		}
		/**
		 * {@inheritDoc}
		 */
		public void removePropertyChangeListener(IPropertyChangeListener listener) {
			fListeners.remove(listener);
			if (fListeners.size() == 0)
				fMockupPreferenceStore.removePropertyChangeListener(fListener);
		}
		/**
		 * {@inheritDoc}
		 */
		public boolean contains(String name) {
			return fOptions.containsKey(name);
		}