Bug 42605 [hovering] NPE in AnnotationHover
Win2K, Build 200308281813, J2RE 1.3.1 IBM J9 build 20030702 (JIT enabled) This appeared in my DOS console - not sure when. There was nothing in the .log file for my workspace. java.lang.NullPointerException at java.lang.Throwable.<init>(Throwable.java) at java.lang.Throwable.<init>(Throwable.java) at java.lang.NullPointerException.<init>(NullPointerException.java:63) at org.eclipse.jdt.internal.ui.text.java.hover.AnnotationHover.getHoverI nfo(AnnotationHover.java:78) at org.eclipse.jdt.internal.ui.text.java.hover.BestMatchHover.getHoverIn fo(BestMatchHover.java) at org.eclipse.jdt.internal.ui.text.java.hover.JavaEditorTextHoverProxy. getHoverInfo(JavaEditorTextHoverProxy.java:69) at org.eclipse.jface.text.TextViewerHoverManager$2.run(TextViewerHoverMa nager.java)
org.eclipse.jdt.ui.examples.javafamily/src/org/eclipse/jdt/internal/ui/examples/jspeditor/AnnotationTextHover.java
return msg;
				}
			}
		}
		
		return null;
	}
	/*
	 * @see org.eclipse.jface.text.ITextHover#getHoverRegion(org.eclipse.jface.text.ITextViewer, int)
	 */
	public IRegion getHoverRegion(ITextViewer textViewer, int offset) {
		/*
		 * XXX: If this is too slow then we might return new Region(offset, 0);
		 */ 
		Iterator e= fModel.getAnnotationIterator();
		while (e.hasNext()) {
			Annotation a= (Annotation) e.next();
			Position p= fModel.getPosition(a);
			if (p.overlapsWith(offset, 0)) {
				if (a instanceof IAnnotationExtension)  {
					String msg= ((IAnnotationExtension) a).getMessage();
					if (msg != null && msg.trim().length() > 0)
						return new Region(p.offset, p.length);
				}
			}
		}
		return null;
	}
}