Bug 26979 Outline pop-up: flicker when filtering
1) open the outline pop-up (ctrl-O) 2) type in a letter ->observe that you can watch how the tree items are removed and then added again. Use of setRedraw(false/true) during filtering should avoid this flickering
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/text/JavaSourceViewerConfiguration.java
import org.eclipse.jdt.internal.ui.JavaPlugin;
import org.eclipse.jdt.internal.ui.text.ContentAssistPreference;
import org.eclipse.jdt.internal.ui.text.HTMLTextPresenter;
import org.eclipse.jdt.internal.ui.text.JavaAnnotationHover;
import org.eclipse.jdt.internal.ui.text.JavaElementProvider;
import org.eclipse.jdt.internal.ui.text.JavaOutlineInformationControl;
import org.eclipse.jdt.internal.ui.text.JavaPartitionScanner;
import org.eclipse.jdt.internal.ui.text.JavaReconciler;
import org.eclipse.jdt.internal.ui.text.java.JavaAutoIndentStrategy;
import org.eclipse.jdt.internal.ui.text.java.JavaCompletionProcessor;
import org.eclipse.jdt.internal.ui.text.java.JavaDoubleClickSelector;
import org.eclipse.jdt.internal.ui.text.java.JavaFormattingStrategy;
import org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy;
import org.eclipse.jdt.internal.ui.text.java.JavaStringAutoIndentStrategy;
import org.eclipse.jdt.internal.ui.text.java.JavaStringDoubleClickSelector;
import org.eclipse.jdt.internal.ui.text.java.hover.JavaEditorTextHoverDescriptor;
import org.eclipse.jdt.internal.ui.text.java.hover.JavaEditorTextHoverProxy;
import org.eclipse.jdt.internal.ui.text.java.hover.JavaInformationProvider;
import org.eclipse.jdt.internal.ui.text.javadoc.JavaDocAutoIndentStrategy;
import org.eclipse.jdt.internal.ui.text.javadoc.JavaDocCompletionProcessor;
/**
 * Configuration for a source viewer which shows Java code.
 * <p>
 * This class may be instantiated; it is not intended to be subclassed.
 * </p>
 */
public class JavaSourceViewerConfiguration extends SourceViewerConfiguration {
	
	/** 
	 * Preference key used to look up display tab width.