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
return new JavaStringAutoIndentStrategy();
		return new JavaAutoIndentStrategy();
	}
	/*
	 * @see SourceViewerConfiguration#getDoubleClickStrategy(ISourceViewer, String)
	 */
	public ITextDoubleClickStrategy getDoubleClickStrategy(ISourceViewer sourceViewer, String contentType) {
		if (JavaPartitionScanner.JAVA_DOC.equals(contentType) ||
				JavaPartitionScanner.JAVA_MULTI_LINE_COMMENT.equals(contentType) ||
				JavaPartitionScanner.JAVA_SINGLE_LINE_COMMENT.equals(contentType))
			return new DefaultTextDoubleClickStrategy();
		else if (JavaPartitionScanner.JAVA_STRING.equals(contentType))
			return new JavaStringDoubleClickSelector();
		return new JavaDoubleClickSelector();
	}
	/*
	 * @see SourceViewerConfiguration#getDefaultPrefix(ISourceViewer, String)
	 * @since 2.0
	 */
	public String[] getDefaultPrefixes(ISourceViewer sourceViewer, String contentType) {
		return new String[] { "//", "" }; 
	}
	/*
	 * @see SourceViewerConfiguration#getIndentPrefixes(ISourceViewer, String)
	 */
	public String[] getIndentPrefixes(ISourceViewer sourceViewer, String contentType) {
		Vector vector= new Vector();
		
				
		Preferences preferences= JavaCore.getPlugin().getPluginPreferences();