[GROOVY-7036] An interface implementation (override) with a method including a default parameter value does not compile

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.3.6
• Fix Version/s: 2.4.6
• Component/s: Compiler
• Environment: JDK 1.7.0_60
• Assignee: Shil Sinha
• Reporter: Martin Ahrer
• Created: 22/Aug/14 04:18
• Updated: 22/Feb/16 20:48
• Resolved: 29/Dec/15 15:23

Description

A complete (gradle based) project to demonstrate the problem has been provided at https://github.com/MartinAhrer/bug-groovy-2.3-override.

interface TemplatedInterface<T> {
    T execute(Map argument)
}
class TemplatedInterfaceImplementation implements TemplatedInterface<String>{
    // This won't compile with groovy 2.3.x when adding a default argument value
    @Override
    String execute(Map argument = [:]) {
        return null
    }
}

This kind of relates to GROOVY-6654.