Bug 17147 Java Editor: missing error indication
F1. - create new Java project - create new class Test - add the word 'Test' as shown below public class Test { Test } Observe: and error appears in the overview bar but no wiggly line. Hovering over the closing bracket shows an error hover.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/ProblemPainter.java
Display d= fTextWidget.getDisplay();
				if (d != null) {
					d.asyncExec(new Runnable() {
						public void run() {
							if (fTextWidget != null && !fTextWidget.isDisposed())
								updatePainting();
						}
					});
				}
			}
		}
	}
	
	public void setHighlightColor(Color color) {
		fColor= color;
	}
	
	/*
	 * @see IPainter#dispose()
	 */
	public void dispose() {
		fColor= null;
		fTextWidget= null;
		fModel= null;
		fProblemPositions= null;
	}
	/*
	 * Returns the document offset of the upper left corner of the widgets viewport,
	 * possibly including partially visible lines.
	 */