Bug 29375 Search for reference gives strange results when references are in static initialisers [search]
[M4] When references to a class or method are in the static initialiser for a class (which is also in a package other than the default one) the results contain spurious nulls. Test case: package foo.bar; public class Test { static { new Test().toString(); } } Highlight "Test" (either place) and search for references in the workspace. The result will be: nullnullbar.Test.{...}
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/viewsupport/JavaElementLabels.java
case IJavaElement.TYPE: 
				getTypeLabel((IType) element, flags, buf);
				break;
			case IJavaElement.CLASS_FILE: 
				getClassFileLabel((IClassFile) element, flags, buf);
				break;					
			case IJavaElement.COMPILATION_UNIT: 
				getCompilationUnitLabel((ICompilationUnit) element, flags, buf);
				break;	
			case IJavaElement.PACKAGE_FRAGMENT: 
				getPackageFragmentLabel((IPackageFragment) element, flags, buf);
				break;
			case IJavaElement.PACKAGE_FRAGMENT_ROOT: 
				getPackageFragmentRootLabel((IPackageFragmentRoot) element, flags, buf);
				break;
			case IJavaElement.IMPORT_CONTAINER:
			case IJavaElement.IMPORT_DECLARATION:
			case IJavaElement.PACKAGE_DECLARATION:
				getDeclararionLabel(element, flags, buf);
				break;
			case IJavaElement.JAVA_PROJECT:
			case IJavaElement.JAVA_MODEL:
				buf.append(element.getElementName());
				break;
			default:
				buf.append(element.getElementName());
		}
		
		if (root != null && getFlag(flags, APPEND_ROOT_PATH)) {
			buf.append(CONCAT_STRING);