Bug 80473 [rulers][preferences] allow disabling of range indicator on left of java editor
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
private OccurrencesFinderJob fOccurrencesFinderJob;
	
	private OccurrencesFinderJobCanceler fOccurrencesFinderJobCanceler;
	/**
	 * This editor's projection support
	 * @since 3.0
	 */
	private ProjectionSupport fProjectionSupport;
	/**
	 * This editor's projection model updater
	 * @since 3.0
	 */
	private IJavaFoldingStructureProvider fProjectionModelUpdater;
	/**
	 * The override and implements indicator manager for this editor.
	 * @since 3.0
	 */
	protected OverrideIndicatorManager fOverrideIndicatorManager;
	/**
	 * Semantic highlighting manager
	 * @since 3.0
	 */
	private SemanticHighlightingManager fSemanticManager;
	/**
	 * The folding runner.
	 * @since 3.1
	 */
	private ToggleFoldingRunner fFoldingRunner;
	/**
	 * Returns the most narrow java element including the given offset.