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
}
	/**
	 * Gets the type name.
	 */
	public String getTypeName() {
		return (fTestClassText==null)?fTestClassTextInitialValue:fTestClassText.getText();
	}
	
	/**
	 * Sets the type name.
	 */	
	public void setTypeName(String name, boolean canBeModified) {
		if (fTestClassText == null) {
			fTestClassTextInitialValue= name;
		} 
		else {
			fTestClassText.setText(name);
			fTestClassText.setEnabled(canBeModified);
		}
	}	
	/**
	 * Called when the type name has changed.
	 * The method validates the type name and returns the status of the validation.
	 * Can be extended to add more validation
	 */
	protected IStatus testClassChanged() {
		JUnitStatus status= new JUnitStatus();
		String typeName= getTypeName();
		
		if (typeName.length() == 0) {