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
final int fBorderSize;
		/**
		 * Creates a fill layout with a border.
		 * 
		 * @param borderSize the size of the border
		 */
		public BorderFillLayout(int borderSize) {
			if (borderSize < 0)
				throw new IllegalArgumentException();
			fBorderSize= borderSize;				
		}
		/**
		 * Returns the border size.
		 * 
		 * @return the border size
		 */		
		public int getBorderSize() {
			return fBorderSize;
		}
		
		/*
		 * @see org.eclipse.swt.widgets.Layout#computeSize(org.eclipse.swt.widgets.Composite, int, int, boolean)
		 */
		protected Point computeSize(Composite composite, int wHint, int hHint, boolean flushCache) {
			Control[] children= composite.getChildren();
			Point minSize= new Point(0, 0);
			if (children != null) {
				for (int i= 0; i < children.length; i++) {
					Point size= children[i].computeSize(wHint, hHint, flushCache);
					minSize.x= Math.max(minSize.x, size.x);