[GROOVY-7104] Default methods on closures coerced to interfaces don't work

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.3.7
• Fix Version/s: 2.3.8, 2.4.0-beta-4
• Assignee: Jochen Theodorou
• Reporter: Luke Daley
• Created: 05/Oct/14 18:59
• Updated: 17/Dec/14 13:25
• Resolved: 14/Oct/14 08:20

Description

Seems like the default method doesn't get called, and a stub noop impl is used.

import java.util.function.Consumer

def consume(Consumer<String> consumer) {
  consumer
    .andThen({ println "2" })
    .accept("foo")
}

// Works
consume(new Consumer<String>() { void accept(String s) { println "1" } })
 
// Fails, andThen() returns null
consume({ println "1" })