[jira] [Issue Comment Deleted] (GROOVY-8653) foreach index value error

["chenxiaojie (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/GROOVY-8653?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

chenxiaojie updated GROOVY-8653:
--------------------------------
    Comment: was deleted

(was: https://issues.apache.org/jira/browse/GROOVY-7409

the reason is similar to this issue.

my code is relatively simple, and it is not easy to find this problem.)

> foreach index value error
> -------------------------
>
>                 Key: GROOVY-8653
>                 URL: https://issues.apache.org/jira/browse/GROOVY-8653
>             Project: Groovy
>          Issue Type: Bug
>          Components: Groovy Console, groovy-jdk
>    Affects Versions: 2.3.7, 2.4.15
>         Environment: jdk1.7.0_79
>            Reporter: chenxiaojie
>            Priority: Major
>   Original Estimate: 12h
>  Remaining Estimate: 12h
>
> {code:java}
> import java.util.concurrent.ConcurrentHashMap
> import java.util.concurrent.ExecutorService
> import java.util.concurrent.Executors
> import java.util.concurrent.TimeUnit
> import java.util.concurrent.atomic.AtomicInteger      
>       
> ConcurrentHashMap<Integer, AtomicInteger> map = new ConcurrentHashMap<Integer, AtomicInteger>(10000)
> ConcurrentHashMap<Integer, AtomicInteger> map2 = new ConcurrentHashMap<Integer, AtomicInteger>(10000)
> ConcurrentHashMap<Integer, AtomicInteger> map3 = new ConcurrentHashMap<Integer, AtomicInteger>(10000)
> ExecutorService es = Executors.newFixedThreadPool(100)
> 1.upto(10000) {
>     i ->
>         es.execute {
>             AtomicInteger count = map.get(i)
>             if (count == null) {
>                 count = new AtomicInteger(0)
>                 AtomicInteger oldCount = map.putIfAbsent(i, count)
>                 if (oldCount != null) {
>                     count = oldCount
>                 }
>             }
>             count.incrementAndGet()
>         }
> }
> for (Integer i = 0; i < 10000; i++) {
>     es.execute {
>         AtomicInteger count = map2.get(i)
>         if (count == null) {
>             count = new AtomicInteger(0)
>             AtomicInteger oldCount = map2.putIfAbsent(i, count)
>             if (oldCount != null) {
>                 count = oldCount
>             }
>         }
>         count.incrementAndGet()
>     }
> }
> for (Integer i = 0; i < 10000; i++) {
>     Integer j = i
>     es.execute {
>         AtomicInteger count = map3.get(j)
>         if (count == null) {
>             count = new AtomicInteger(0)
>             AtomicInteger oldCount = map3.putIfAbsent(j, count)
>             if (oldCount != null) {
>                 count = oldCount
>             }
>         }
>         count.incrementAndGet()
>     }
> }
> es.shutdown()
> es.awaitTermination(1, TimeUnit.MINUTES)
> // println 10000
> println map.size()
> // println 6583 ??? size is 0-10000 integer
> println map2.size()
> // println 10000
> println map3.size()
> {code}



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