Bug 90082 [1.5][generics] "New Class" wizard is not able to implement generic interfaces
In Eclipse 3.1 (JDT version I20050219-1500), the wizard for creating a new class seems unable to implement generic interfaces while specifying its argument. For example, implementing Comparable<Integer> is impossible; you have to first implement Comparable, and then correct the genearted stub for specifying its type argument. (in this example, replacing the Object argument of comparesTo by Integer.)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/wizards/NewTypeWizardPage.java
status.setError(NewWizardMessages.getString("NewTypeWizardPage.error.TypeNameExistsDifferentCase")); 
					return status;
				}
			}
		} else {
			IType type= getEnclosingType();
			if (type != null) {
				fCurrType= type.getType(typeName);
				if (fCurrType.exists()) {
					status.setError(NewWizardMessages.getString("NewTypeWizardPage.error.TypeNameExists")); 
					return status;
				}
			}
		}
		return status;
	}
	
	/**
	 * Hook method that gets called when the superclass name has changed. The method 
	 * validates the superclass name and returns the status of the validation.
	 * <p>
	 * Subclasses may extend this method to perform their own validation.
	 * </p>
	 * 
	 * @return the status of the validation
	 */
	protected IStatus superClassChanged() {
		StatusInfo status= new StatusInfo();
		IPackageFragmentRoot root= getPackageFragmentRoot();
		fSuperClassDialogField.enableButton(root != null);