Bug 51092 [reconciling] JavaMultiPassReconciler removes annotations
I20040130 + plug-in export Open a CU which has errors and warnings. Observe: the annotations in overview and annotation ruler are quickly visible and then get removed. This is caused by JavaMultiPassReconciler.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/text/JavaSourceViewerConfiguration.java
return shortenedStateMasks;
	}
	
	/*
	 * @see SourceViewerConfiguration#getTextHover(ISourceViewer, String, int)
	 * @since 2.1
	 */
	public ITextHover getTextHover(ISourceViewer sourceViewer, String contentType, int stateMask) {
		JavaEditorTextHoverDescriptor[] hoverDescs= JavaPlugin.getDefault().getJavaEditorTextHoverDescriptors();
		int i= 0;
		while (i < hoverDescs.length) {
			if (hoverDescs[i].isEnabled() &&  hoverDescs[i].getStateMask() == stateMask)
				return new JavaEditorTextHoverProxy(hoverDescs[i], getEditor());
			i++;
		}
		return null;
	}
	/*
	 * @see SourceViewerConfiguration#getTextHover(ISourceViewer, String)
	 */
	public ITextHover getTextHover(ISourceViewer sourceViewer, String contentType) {
		return getTextHover(sourceViewer, contentType, ITextViewerExtension2.DEFAULT_HOVER_STATE_MASK);
	}
	
	/*
	 * @see SourceViewerConfiguration#getConfiguredContentTypes(ISourceViewer)
	 */
	public String[] getConfiguredContentTypes(ISourceViewer sourceViewer) {
		return new String[] { 
			IDocument.DEFAULT_CONTENT_TYPE,