Bug 3248 Creating a new class creates 3 entries in local history (1GE4TOC)
Creating a new class with the class wizard creates 3 entries in the local history. The oldest is empty, the others have the same content. NOTES: EG (5/23/2001 11:35:43 AM) is the wizard setting the contents 3 times? MA (5/25/01 10:10:32 AM) JDOM automatically saves the content 2 times add import: I have to save, otherwise create hierarchy does not succeed. EG (5/30/01 9:43:51 AM) JDOM should provide control over the saving behaviour and not do it automatically. Moving to JCORE for comment.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/wizards/NewTypeWizardPage.java
* @return the status of the validation
	 */
	protected IStatus superClassChanged() {
		StatusInfo status= new StatusInfo();
		IPackageFragmentRoot root= getPackageFragmentRoot();
		fSuperClassDialogField.enableButton(root != null);
		
		fSuperClass= null;
		
		String sclassName= getSuperClass();
		if (sclassName.length() == 0) {
			
			return status;
		}
		IStatus val= JavaConventions.validateJavaTypeName(sclassName);
		if (val.getSeverity() == IStatus.ERROR) {
			status.setError(NewWizardMessages.getString("NewTypeWizardPage.error.InvalidSuperClassName")); 
			return status;
		} 
		if (root != null) {
			try {		
				IType type= resolveSuperTypeName(root.getJavaProject(), sclassName);
				if (type == null) {
					status.setWarning(NewWizardMessages.getString("NewTypeWizardPage.warning.SuperClassNotExists")); 
					return status;
				} else {
					if (type.isInterface()) {
						status.setWarning(NewWizardMessages.getFormattedString("NewTypeWizardPage.warning.SuperClassIsNotClass", sclassName)); 
						return status;
					}