[GROOVY-8110] @ListenerList generated fireWhatever() method stops working

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.4.7, 2.4.8
• Fix Version/s: 2.4.10
• Component/s: groovy-runtime
• Assignee: Paul King
• Reporter: Frigo Pratser
• Created: 08/Mar/17 11:31
• Updated: 18/Mar/17 09:56
• Resolved: 09/Mar/17 21:15

Description

As described in the question on SO
http://stackoverflow.com/questions/42648766/groovy-listenerlist-generated-firexxx-method-stops-working
and confirmed by @aalmiray the fireWhatever() method generated when
using @ListenerList annotation stops working after some calls.

@aalmiray s code as posted in his reply reproduces the problem with
Groovy 2.4.7 and I confirmed it with 2.4.8 running it in groovyConsole. The difference between this code and the longer one in the SO question is that in the longer version the call works but if called periodically after some time it produces the same Exception.

MessageProducer.groovy

import groovy.beans.ListenerList

interface MessageListener {
  void messageReceived(byte[] msg)
}

class MessageProducer {
  @ListenerList
  List<MessageListener> listeners

  void produce(String msg) {
    fireMessageReceived(msg.getBytes())
  }
}

producer = new MessageProducer()
producer.addMessageListener({ println it } as MessageListener)
producer.produce('Groovy')

Stacktrace

Exception thrown

java.lang.NoSuchMethodError: MessageProducer.fireMessageReceived([B)V
        at MessageProducer$fireMessageReceived$0.callCurrent(Unknown
Source) at MessageProducer.produce(ConsoleScript0:12)
        at MessageProducer$produce.call(Unknown Source)
        at ConsoleScript0.run(ConsoleScript0:18

Issue Links

• links to: GitHub Pull Request #510