[GROOVY-6654] Can't @Override method with generic argument type in parameterized subclass

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.3.0-beta-1
• Fix Version/s: 2.3.0-beta-1
• Component/s: Compiler
• Assignee: Cédric Champeau
• Reporter: Peter Niederwieser
• Created: 03/Apr/14 06:31
• Updated: 19/Sep/14 14:24
• Resolved: 03/Apr/14 06:55

Description

Base.groovy

class Base<T> {
  void foo(T t) {}
}

Derived.groovy

class Derived extends Base<String> {
  @Override
  void foo(String s) {}
}

Compile error:

Error:(2, 3) Groovyc: Method 'foo' from class 'Derived' does not override method from its superclass or interfaces but is annotated with @Override.

Removing the @Override annotation appears to solve the problem. Earlier Groovy versions (e.g. 2.0.x) didn't have this problem. Tested with latest groovy-all-2.3.0-SNAPSHOT.