Bug 96917 [implementation] If two editors use the 2.x-compatible API, one or both doesn't work
At least one problem is that 3.0 installs partitioners for every editor that might possibly edit a file, but each editor expects its own partitioner to be installed. Leading to the famous white screen with blue line.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitDocumentProvider.java
*/
			public Image getImage(Display display) {
				initializeImages();
				return fImage;
			}
			/*
			 * @see IJavaAnnotation#getMessage()
			 */
			public String getText() {
				return fProblem.getMessage();
			}
			/*
			 * @see IJavaAnnotation#getArguments()
			 */
			public String[] getArguments() {
				return isProblem() ? fProblem.getArguments() : null;
			}
			/*
			 * @see IJavaAnnotation#getId()
			 */
			public int getId() {
				return fProblem.getID();
			}
			/*
			 * @see IJavaAnnotation#isProblem()
			 */
			public boolean isProblem() {
				String type= getType();
				return  JavaMarkerAnnotation.WARNING_ANNOTATION_TYPE.equals(type)  ||
							JavaMarkerAnnotation.ERROR_ANNOTATION_TYPE.equals(type) ||