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
/*
	 * @see SourceViewerConfiguration#getConfiguredContentTypes(ISourceViewer)
	 */
	public String[] getConfiguredContentTypes(ISourceViewer sourceViewer) {
		return new String[] { 
			IDocument.DEFAULT_CONTENT_TYPE, 
			JavaPartitionScanner.JAVA_DOC, 
			JavaPartitionScanner.JAVA_MULTI_LINE_COMMENT, 
			JavaPartitionScanner.JAVA_SINGLE_LINE_COMMENT,
			JavaPartitionScanner.JAVA_STRING
		};
	}
	
	/*
	 * @see SourceViewerConfiguration#getContentFormatter(ISourceViewer)
	 */
	public IContentFormatter getContentFormatter(ISourceViewer sourceViewer) {
		
		ContentFormatter formatter= new ContentFormatter();
		IFormattingStrategy strategy= new JavaFormattingStrategy(sourceViewer);
		
		formatter.setFormattingStrategy(strategy, IDocument.DEFAULT_CONTENT_TYPE);
		formatter.enablePartitionAwareFormatting(false);		
		formatter.setPartitionManagingPositionCategories(fJavaTextTools.getPartitionManagingPositionCategories());
		
		return formatter;
	}
	
	/*
	 * @see SourceViewerConfiguration#getHoverControlCreator(ISourceViewer)