Bug 27889 [JUnit] Launcher; all tests in default package ... empty TF
If you select "All tests in Project, Source Folder or Package" and select the default package the TF will be empty. There is no visual indication that one has selected the default package. It should be similar to the indicator in Package Explorer/View: (default package)
org.eclipse.jdt.junit/src/org/eclipse/jdt/internal/junit/launcher/JUnitMainTab.java
(javaElement instanceof ISourceReference) ||
				(javaElement instanceof IClassFile)) {
		
				IType[] types = TestSearchEngine.findTests(new BusyIndicatorRunnableContext(), new Object[] {javaElement});
				if ((types == null) || (types.length < 1)) {
					return;
				}
				
				name = types[0].getFullyQualifiedName();
			}	
		} catch (InterruptedException ie) {
		} catch (InvocationTargetException ite) {
		}
		if (name == null)
			name= ""; 
		config.setAttribute(IJavaLaunchConfigurationConstants.ATTR_MAIN_TYPE_NAME, name);
		initializeName(config, name);
	}
	
	/**
	 * @see ILaunchConfigurationTab#getName()
	 */
	public String getName() {
		return JUnitMessages.getString("JUnitMainTab.tab.label"); 
	}
	
	private IJavaElement chooseContainer(IJavaElement initElement) {
		Class[] acceptedClasses= new Class[] { IPackageFragmentRoot.class, IJavaProject.class, IPackageFragment.class };
		TypedElementSelectionValidator validator= new TypedElementSelectionValidator(acceptedClasses, false) {
			public boolean isSelectedValid(Object element) {