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From: Jaroslaw Cwiklik <uimaee@gmail.com>
Date: Thu, 22 Sep 2016 11:15:51 -0400
Message-ID: <CAO329yABC8cYkckgkJrPOdoyURNXrPvPmAytiS47RgEhEOxwsw@mail.gmail.com>
Subject: Re: NullPointerException when RunRemoteAsyncAE tries to unload (UIMA
 AS and UIMA C++)
To: user@uima.apache.org
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archived-at: Thu, 22 Sep 2016 15:15:59 -0000

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This warning

WARN  Transport                      - Transport Connection to: tcp://
127.0.0.1:56261 failed: java.io.EOFException

is from brokers log or console I suspect. It just means that the broker
lost a connection to a client. Looks like the client
went away without closing a connection. This is probably a side-effect of
NPE.

Is the NPE repeatable? Does it happen each time you run this test? Looking
for a hint if there is a race
condition in the UIMA-AS code.


On Thu, Sep 22, 2016 at 10:54 AM, David Fox <David.Fox@humedica.com> wrote:

> I=E2=80=99m using the UIMA C++ framework 2.4.0 (32-bit) on linux (CentOS =
6.5), and
> following the instructions  https://uima.apache.org/d/
> uimacpp-2.4.0/docs/overview_and_setup.html.  I=E2=80=99ve successfully bu=
ilt
> DaveDetector and run it with the standalone C++ pipeline (runAECpp) and
> within a Java pipeline via JNI.  I=E2=80=99ve now installed UIMA AS 2.8.1=
 so I can
> follow the instructions under 2.3 Testing Interoperability with UIMA AS
>
>
> cd $UIMACPP_HOME/examples/tutorial
> runRemoteAsyncAE.sh tcp://localhost:61616 MeetingAnnotator \
> -d descriptors/Deploy_MeetingAnnotator.xml
>
>
> I get a NullPointerException and a transport warning about a
> java.io.EOFException
>
>
> runRemoteAsyncAE.sh tcp://localhost:61616 MeetingAnnotator -d
> descriptors/Deploy_MeetingAnnotator.xml -o `pwd`/out
>
> Attempting to deploy descriptors/Deploy_MeetingAnnotator.xml ...
>
> Waiting for Uima C++ service to connect...
>
> Waiting for Uima C++ service to connect...
>
> Waiting for Uima C++ service to report init status...
>
> deployCppService.cpp91 Start receiving messages
>
>
> Startinging GetMetaData instance
>
>
> Starting Annotator instance 0
>
>
> deployCppService.cpp UIMA C++ Service MeetingAnnotator at
> tcp://localhost:61616 Ready to process...
>
>
> Uima C++ service at MeetingAnnotator Ready to process...
>
> UIMA AS Service Initialization Complete
>
> .Completed 1 documents
>
> Time Elapsed : 2184 ms
>
> java.lang.NullPointerException
>
>         at org.apache.uima.adapter.jms.client.BaseUIMAAsynchronousEngine_
> impl.undeploy(BaseUIMAAsynchronousEngine_impl.java:964)
>
>         at org.apache.uima.adapter.jms.client.BaseUIMAAsynchronousEngine_
> impl.undeploy(BaseUIMAAsynchronousEngine_impl.java:906)
>
>         at org.apache.uima.examples.as.RunRemoteAsyncAE.run(
> RunRemoteAsyncAE.java:260)
>
>         at org.apache.uima.examples.as.RunRemoteAsyncAE.main(
> RunRemoteAsyncAE.java:314)
>
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>
>         at sun.reflect.NativeMethodAccessorImpl.invoke(
> NativeMethodAccessorImpl.java:62)
>
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(
> DelegatingMethodAccessorImpl.java:43)
>
>         at java.lang.reflect.Method.invoke(Method.java:497)
>
>         at org.apache.uima.bootstrap.UimaBootstrap.main(
> UimaBootstrap.java:87)
>
> WARN  Transport                      - Transport Connection to: tcp://
> 127.0.0.1:56221 failed: java.io.EOFException
>
> I'm
> I can also run with a collection reader:
>
>
> runRemoteAsyncAE.sh tcp://localhost:61616 MeetingAnnotator -d
> descriptors/Deploy_MeetingAnnotator.xml -o `pwd`/out -c
> /misc/NLP/dfox/scratch/uima/apache-uima-as-2.8.1/examples/
> descriptors/collection_reader/FileSystemCollectionReader.mine.xml
>
> (where the modified collection reader points to $UIMA_HOME/examples/data)
> in which case I get =E2=80=9CCompleted 8 documents=E2=80=9D, and xmi outp=
ut for each in the
> out/ directory, but still get the same exception and warning.  Based on
> that (plus looking at the RunRemoteAsyncAE java source), it looks like my
> analysis engine is running fine, but then hitting some problem when
> RunRemoteAsyncAE tries to undeploy the C++ annotator.
>
> I=E2=80=99m trying to figure out if this is something I should worry abou=
t
> (especially if it reflects a problem with running UIMA C++ 2.4 and UIMA A=
S
> 2.8.1), or if it is normal or harmless.
>
> When I run the similar test with one of the Java-only UIMA AS samples:
>
>
> runRemoteAsyncAE.sh tcp://localhost:61616 MeetingDetectorTaeQueue -d
> deploy/as/Deploy_MeetingDetectorTAE.xml -c descriptors/collection_reader/
> FileSystemCollectionReader.mine.xml
>
> I still get the transport warning
>
>
> WARN  Transport                      - Transport Connection to: tcp://
> 127.0.0.1:56261 failed: java.io.EOFException
>
> but not the NullPointerException
>
> Thanks,
> David
>
>
>
>
>
>

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