getText(): Return null instead of ""

refs 2983

org.fortiss.tooling.base.ui/trunk/src/org/fortiss/tooling/base/ui/annotation/labelprovider/CheckBoxLabelProvider.java

@@ -36,7 +36,7 @@ import org.fortiss.tooling.base.ui.annotation.view.IAnnotationViewPart;
  * @author diewald
  * @author $Author$
  * @version $Rev$
- * @ConQAT.Rating GREEN Hash: A222B69875684A2803E560B95440EF69
+ * @ConQAT.Rating GREEN Hash: 6C5951E5A7BE03075F49B578E6CC4E36
  */
 public class CheckBoxLabelProvider extends AnnotationLabelProvider {
 
@@ -49,7 +49,7 @@ public class CheckBoxLabelProvider extends AnnotationLabelProvider {
 	/** {@inheritDoc} */
 	@Override
 	public String getText(Object element) {
-		return "";
+		return null;
 	}
 
 	/** {@inheritDoc} */