Bug 38499 Source Hover oszillates
I20030604 MacOS 10.2.6 - in Java Editor preferences configure source hover to activate without pressing a modifier key - activate source hover and stop moving the mouse Observe: after two seconds the hover disappears and reappears a second later; this oszillates indefinitetly
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/java/hover/SourceViewerInformationControl.java
* to be displayed. No additional styles are applied to the styled text widget.
	 * 
	 * @param parent the parent shell
	 */
	public SourceViewerInformationControl(Shell parent) {
		this(parent, SWT.NONE);
	}
	
	/*
	 * @see org.eclipse.jface.text.IInformationControlExtension2#setInput(java.lang.Object)
	 */
	public void setInput(Object input) {
		if (input instanceof String)
			setInformation((String)input);
		else
			setInformation(null);
	}
	/*
	 * @see IInformationControl#setInformation(String)
	 */
	public void setInformation(String content) {
		if (content == null) {
			fViewer.setInput(null);
			return;
		}
				
		IDocument doc= new Document(content);
		IDocumentPartitioner dp= JavaPlugin.getDefault().getJavaTextTools().createDocumentPartitioner();
		if (dp != null) {
			doc.setDocumentPartitioner(dp);