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From "Ryan Ebanks (JIRA)" <j...@apache.org>
Subject [jira] [Created] (STREAMS-173) RssStreamsProvider attempts to cast a LinkedConcurrentQueue to a StreamsResultSet
Date Tue, 16 Sep 2014 16:30:34 GMT
Ryan Ebanks created STREAMS-173:
-----------------------------------

             Summary: RssStreamsProvider attempts to cast a LinkedConcurrentQueue to a StreamsResultSet
                 Key: STREAMS-173
                 URL: https://issues.apache.org/jira/browse/STREAMS-173
             Project: Streams
          Issue Type: Bug
            Reporter: Ryan Ebanks


On line 140, a queue is attempted to be cast to a StreamsResultSet.

StackTrace:
00:05:59.016 [main] DEBUG o.a.s.l.builders.LocalStreamBuilder - Attaching
shutdown handler
00:05:59.030 [pool-3-thread-1] DEBUG
o.a.s.l.t.LocalStreamProcessMonitorThread - [monitor] Used Memory: 20.0 MB,
Max: 954.7 MB
00:05:59.044 [main] INFO  o.a.s.l.builders.LocalStreamBuilder - Started
stream with 2 components
00:05:59.067 [pool-2-thread-4] ERROR o.a.s.l.tasks.StreamsProviderTask -
Error in processing provider stream
java.lang.ClassCastException: java.util.concurrent.ConcurrentLinkedQueue
cannot be cast to org.apache.streams.core.StreamsResultSet
at
org.apache.streams.rss.provider.RssStreamProvider.readCurrent(RssStreamProvider.java:140)
~[classes/:na]
at
org.apache.streams.local.tasks.StreamsProviderTask.run(StreamsProviderTask.java:148)
~[streams-runtime-local-0.1-SNAPSHOT.jar:0.1-SNAPSHOT]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
[na:1.7.0_67]
at java.util.concurrent.FutureTask.run(FutureTask.java:262) [na:1.7.0_67]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[na:1.7.0_67]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[na:1.7.0_67]
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_67]
00:05:59.067 [pool-2-thread-4] DEBUG o.a.s.l.tasks.StreamsProviderTask -
Complete Provider Task execution for RssStreamProvider
00:05:59.077 [pool-1-thread-2] INFO  o.a.s.rss.provider.RssEventProcessor -
Terminating!
00:05:59.475 [pool-1-thread-1] INFO  o.a.s.rss.provider.RssStreamProvider -
Connected: http://www.thelocal.ch/feeds/rss.php
java.lang.NullPointerException
at
org.apache.streams.rss.provider.RssStreamProviderTask.run(RssStreamProviderTask.java:62)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)


Acceptance Criteria:
* Successfully executes, i.e. no exceptions
* Unit tests to prove correctness



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