Bug 12002 TestCase wizard: error when pressing finish with an empty test name
the finish button should be disabled when the test name field is empty
org.eclipse.jdt.junit/src/org/eclipse/jdt/junit/wizards/NewTestCaseCreationWizardPage.java
protected final static String PAGE_NAME= "NewTestCaseCreationWizardPage"; 
	protected final static String CLASS_TO_TEST= PAGE_NAME + ".classtotest"; 
	protected final static String TEST_CLASS= PAGE_NAME + ".testclass"; 
	protected final static String TEST_SUFFIX= "Test"; 
	protected final static String SETUP= "setUp"; 
	protected final static String TEARDOWN= "tearDown"; 
	protected final static String STORE_GENERATE_MAIN= PAGE_NAME + ".GENERATE_MAIN"; 
	protected final static String STORE_USE_TESTRUNNER= PAGE_NAME + ".USE_TESTRUNNER";	
	protected final static String STORE_TESTRUNNER_TYPE= PAGE_NAME + ".TESTRUNNER_TYPE";
	
	private String fDefaultClassToTest;
	private NewTestCaseCreationWizardPage2 fPage2;
	private SelectionButtonGroup fMethodStubsButtons;
	private IType fClassToTest;
	protected IStatus fClassToTestStatus;
	protected IStatus fTestClassStatus;
	private int fIndexOfFirstTestMethod;
	private Label fClassToTestLabel;
	private Text fClassToTestText;
	private Button fClassToTestButton;
	
	private Label fTestClassLabel;
	private Text fTestClassText;
	private String fTestClassTextInitialValue;
	private IMethod[] fTestMethods;
	private IType fCreatedType;