Bug 211488

Summary:	[override method] Allow Override/Implement of inherited interfaces
Product:	[Eclipse Project] JDT	Reporter:	Mike M <gubespam>
Component:	UI	Assignee:	JDT-UI-Inbox <jdt-ui-inbox>
Status:	NEW ---	QA Contact:
Severity:	enhancement
Priority:	P5	CC:	martinae
Version:	3.3
Target Milestone:	---
Hardware:	PC
OS:	Windows XP
Whiteboard:

Description Mike M

2007-11-29 14:05:14 EST

Currently, you cannot use the Source -> Implement/Override feature on interfaces.  Enable this feature on interfaces, because the following use cases are possible:

1. Narrow return types of methods.  I believe this has been allowed since Java 1.5
2. Add a "throws" declaration of a RuntimeException
3. Remove declaration of Exceptions

The two interfaces below demonstrate these cases:

--
import java.awt.AWTException;
public interface Interface
{
    public Interface method() throws IllegalArgumentException, AWTException [3];
}
--
public interface SubInterface extends Interface
{
    public SubInterface [1] method() throws UnsupportedOperationException [2];
}

It is arguable about how useful 2 and 3 are, but 1 is definitely useful.

Comment 1 Jerome Lanneluc

2007-11-30 11:01:17 EST

Moving to JDT/UI

Comment 2 Martin Aeschlimann

2007-11-30 11:06:53 EST

So it would become the Override/Implement/Redefine wizard! ;-)