Github user mjpost commented on the pull request:
https://github.com/apache/incubator-joshua/pull/12#issuecomment-222016587
Also, multithreading is broken. I randomly (not always) get the following
error when decoding with more than 1 thread:
```
Exception in thread "Thread-4" java.lang.RuntimeException: Input 1: FATAL
UNCAUGHT EXCEPTION: null
at
org.apache.joshua.decoder.Decoder$DecoderThreadRunner.run(Decoder.java:433)
Caused by: java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901)
at java.util.ArrayList$Itr.next(ArrayList.java:851)
at
org.apache.joshua.decoder.chart_parser.DotChart.addDotItem(DotChart.java:362)
at
org.apache.joshua.decoder.chart_parser.DotChart.expandDotCell(DotChart.java:223)
at org.apache.joshua.decoder.chart_parser.Chart.expand(Chart.java:585)
at
org.apache.joshua.decoder.DecoderThread.translate(DecoderThread.java:141)
at
org.apache.joshua.decoder.Decoder$DecoderThreadRunner.run(Decoder.java:424)
```
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