[GROOVY-6909] @CompileStatic in combo @WithXXXLock transform is broken

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.3.4, 2.4.0-beta-2
• Assignee: Paul King
• Reporter: Paul King
• Created: 03/Jul/14 19:09
• Updated: 07/Apr/15 19:07
• Resolved: 03/Jul/14 20:50

Description

This code:

import groovy.transform.*

@CompileStatic
class Counters {
    public final Map<String,Integer> map = [:].withDefault { 0 }

    @WithReadLock
    int get(String id) {
        map.get(id)
    }

    @WithWriteLock
    void add(String id, int num) {
        Thread.sleep(100) // emulate long computation
        map.put(id, map.get(id)+num)
    }
}

def counters = new Counters()
assert counters.get('a') == 0
assert counters.get('b') == 0

10.times { cpt ->
    Thread.start { counters.add('a', 1) }
    def t = Thread.start {
        Thread.sleep(20)
        assert counters.get('a') == cpt+1
    }
    t.join(250)
}

gives errors such as:

assert counters.get('a') == cpt+1
       |        |        |  |  |
       |        2        |  5  6
       Counters@3b871f   false