Bug 26501 Refactoring wizard brings the package explorer to flicker [refactoring]
20021114 1. In the Java perspective, package explorer visible. 2. Open FilterDescriptor (jdt.ui) select ID_PLUGIN (line 76). 3. From the context menu choose Refactoring -> Inline Constant 4. On the first page press next 5. Before the progress monitor is finished, the package view suddenly starts to flicker for about 1/2 sec. Why?
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/PreferenceConstants.java
* @since 2.1
	 */
	public static final String EDITOR_ALT_SHIFT_HOVER= "altShiftHover"; 
	/**
	 * A string value used by the named preferences for hover configuration to
	 * descibe that no hover should be shown for the given key modifiers.
	 * @since 2.1
	 */
	public static final String EDITOR_NO_HOVER_CONFIGURED_ID= "noHoverConfiguredId"; 
	
	/**
	 * A string value used by the named preferences for hover configuration to
	 * descibe that the default hover should be shown for the given key
	 * modifiers. The default hover is described by the
	 * <code>EDITOR_DEFAULT_HOVER</code> property.
	 * @since 2.1
	 */
	public static final String EDITOR_DEFAULT_HOVER_CONFIGURED_ID= "defaultHoverConfiguredId"; 
	/**
	 * A named preference that defines the hover named the 'default hover'.
	 * Value is of type <code>String</code>: possible values are <code>
	 * EDITOR_NO_HOVER_CONFIGURED_ID</code> or <code> the hover id of a hover
	 * contributed as <code>javaEditorTextHovers</code>.
	 * </p>
	 *@since 2.1
	 */
	public static final String EDITOR_DEFAULT_HOVER= "defaultHover"; 
	/**
	 * A named preference that controls if segmented view (show selected element only) is turned on or off.
	 * <p>