[Helma-user] java.util.ConcurrentModificationException on app.addRepository

[Axel Zuzek]

2008/7/17 Axel Zuzek <axel.zuzek at knallgrau.at>:

> hi hannes,
>
> your patch changed something, but didn't solve the problem (the error
> occours now (reproduceable) at a later repository dir, see logmessages below
>

update: it seems to be a race condition, because the occurrence of the error
varies now between delicious and places widget

>
> ...
> [2008/07/17 14:36:13] [INFO] START INFO load widgets [Application
> twoday_w1_s2]
> [2008/07/17 14:36:13] [INFO] ---- adding repository
> C:\helma-1.6.2\apps\twoday_w1_1_1\core\widgets\0_rss\code
> [2008/07/17 14:36:13] [INFO] ---- adding repository
> C:\helma-1.6.2\apps\twoday_w1_1_1\core\widgets\amazon\code
> [2008/07/17 14:36:13] [INFO] ---- adding repository
> C:\helma-1.6.2\apps\twoday_w1_1_1\core\widgets\archive\code
> [2008/07/17 14:36:13] [INFO] ---- adding repository
> C:\helma-1.6.2\apps\twoday_w1_1_1\core\widgets\credits\code
> [2008/07/17 14:36:13] [INFO] ---- adding repository
> C:\helma-1.6.2\apps\twoday_w1_1_1\core\widgets\delicious\code
> [2008/07/17 14:36:13] [INFO] ---- adding repository
> C:\helma-1.6.2\apps\twoday_w1_1_1\core\widgets\feeds\code
> [2008/07/17 14:36:13] [INFO] ---- adding repository
> C:\helma-1.6.2\apps\twoday_w1_1_1\core\widgets\flickr\code
> [2008/07/17 14:36:13] [INFO] ---- adding repository
> C:\helma-1.6.2\apps\twoday_w1_1_1\core\widgets\linkList\code
> [2008/07/17 14:36:13] [ERROR] null:
> java.util.ConcurrentModificationException
> java.util.ConcurrentModificationException
>         at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
>         at java.util.HashMap$ValueIterator.next(HashMap.java:821)
>         at
> java.util.Collections$UnmodifiableCollection$1.next(Collections.java:1010)
>         at
> helma.scripting.rhino.RhinoCore.updatePrototypes(RhinoCore.java:348)
>         at
> helma.scripting.rhino.RhinoEngine.enterContext(RhinoEngine.java:174)
>         at
> helma.framework.core.RequestEvaluator.run(RequestEvaluator.java:172)
>         at java.lang.Thread.run(Thread.java:619)
> [2008/07/17 14:36:13] [INFO] ---- adding repository
> C:\helma-1.6.2\apps\twoday_w1_1_1\core\widgets\meebo\code
> [2008/07/17 14:36:13] [INFO] ---- adding repository
> C:\helma-1.6.2\apps\twoday_w1_1_1\core\widgets\plazes\code
> ...
>
> 2008/7/17 Hannes Wallnoefer <hannes at helma.at>:
>
>
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