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
* 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 ******************************************************************************/
package org.eclipse.jdt.ui;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.widgets.Display;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.preference.PreferenceConverter;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.ui.texteditor.AbstractTextEditor;
import org.eclipse.ui.texteditor.WorkbenchChainedTextFontFieldEditor;
import org.eclipse.jdt.core.IClasspathEntry;
import org.eclipse.jdt.ui.text.IJavaColorConstants;
import org.eclipse.jdt.internal.ui.JavaPlugin;
import org.eclipse.jdt.internal.ui.preferences.NewJavaProjectPreferencePage;
/**
 * Preference constants used in the JDT-UI preference store. Clients should only read the
 * JDT-UI preference store using these values. Clients are not allowed to modify the 
 * preference store programmatically.
 * 
 * @since 2.0
  */
public class PreferenceConstants {
	private PreferenceConstants() {
	}
	
	/**