Bug 307957

Summary:	Failure to resolve overriding method to the referenced interface when used with Ant
Product:	[Eclipse Project] JDT	Reporter:	Mike <michael>
Component:	Core	Assignee:	Olivier Thomann <Olivier_Thomann>
Status:	VERIFIED NOT_ECLIPSE	QA Contact:
Severity:	normal
Priority:	P3	CC:	eclipse, jarthana, Olivier_Thomann, remy.suen
Version:	3.6	Keywords:	needinfo
Target Milestone:	3.6 M7
Hardware:	PC
OS:	Linux
Whiteboard:

Description Mike

2010-04-02 02:18:25 EDT

Build Identifier: 20100218-1602

I am currently using the JDT compiler with Ant.  Inside Eclipse I get no errors.  However, once I run the ant build I get errors that methods with the @Override annotation do not override a method in the interface.  If I switch to the native compiler it works fine.  If I remove the @Override annotation it works fine.

Reproducible: Always

Steps to Reproduce:
Whenever I use ant with JDT as my compiler and I have an implementation or subclass in which I use the @Override annotation.

Comment 1 Remy Suen

2010-04-02 07:24:40 EDT

@Override for interface methods is a Java 6 thing. You need to ensure you have the correct settings in your Eclipse project and your Ant file (they should match, naturally).

Comment 2 Walter Harley

2010-04-02 12:17:14 EDT

In particular: where the javac compiler always assumes it is targeted at its "own" version of java (that is, javac 1.6 targets Java 1.6 behavior by default), you have to explicitly target the Eclipse command-line compiler.  I think the options are -target and -compliance, but I might be misremembering.

Comment 3 Mike

2010-04-02 15:38:27 EDT

I will give that a try.  I believe the ant property is javac.target=1.6

Comment 4 Olivier Thomann

2010-04-04 12:16:03 EDT

I would need an ant script that reproduces the problem.

Comment 5 Mike

2010-04-06 01:23:46 EDT

I modified the original build file to specify a javac target as 1.6 and it works.  Thanks for your help.

Comment 6 Mike

2010-04-06 01:26:06 EDT

Closing, not a bug.

Comment 7 Jay Arthanareeswaran

2010-04-27 08:00:24 EDT

Verified for 3.6M7.