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https://issues.apache.org/jira/browse/UIMA-4915?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15269755#comment-15269755
]
Philip Parker commented on UIMA-4915:
-------------------------------------
I re-ran with asserts enabled. I get an AssertionError:
Exception in thread "main" java.lang.AssertionError
at
org.apache.uima.cas.impl.CasSerializerSupport$CasDocSerializer.enqueueCommon(CasSerializerSupport.java:656)
at
org.apache.uima.cas.impl.CasSerializerSupport$CasDocSerializer.enqueueCommon(CasSerializerSupport.java:646)
at
org.apache.uima.cas.impl.CasSerializerSupport$CasDocSerializer.enqueue(CasSerializerSupport.java:728)
at
org.apache.uima.cas.impl.CasSerializerSupport$CasDocSerializer.enqueueFeatures(CasSerializerSupport.java:853)
at
org.apache.uima.cas.impl.CasSerializerSupport$CasDocSerializer.enqueue(CasSerializerSupport.java:733)
at
org.apache.uima.cas.impl.CasSerializerSupport$CasDocSerializer.enqueueFeatures(CasSerializerSupport.java:900)
at
org.apache.uima.cas.impl.CasSerializerSupport$CasDocSerializer.enqueueFeaturesOfFSs(CasSerializerSupport.java:641)
at
org.apache.uima.cas.impl.CasSerializerSupport$CasDocSerializer.enqueueFeaturesOfIndexed(CasSerializerSupport.java:631)
at
org.apache.uima.cas.impl.CasSerializerSupport$CasDocSerializer.serialize(CasSerializerSupport.java:417)
at
org.apache.uima.json.JsonCasSerializer.serialize(JsonCasSerializer.java:318)
at
org.apache.uima.json.JsonCasSerializer.serialize(JsonCasSerializer.java:299)
at
org.apache.uima.json.JsonCasSerializer.jsonSerialize(JsonCasSerializer.java:258)
at
org.apache.uima.json.JsonCasSerializer.jsonSerialize(JsonCasSerializer.java:206)
> NullPointerException in CasSerializerSupport when called from
> JsonCasSerializer and features reference the cas:NULL element
> ---------------------------------------------------------------------------------------------------------------------------
>
> Key: UIMA-4915
> URL: https://issues.apache.org/jira/browse/UIMA-4915
> Project: UIMA
> Issue Type: Bug
> Components: Core Java Framework
> Affects Versions: 2.7.0SDK, 2.8.1SDK
> Environment: All
> Reporter: Philip Parker
>
> When serializing a CAS, if there are references to the NULL element
> (<cas:NULL xmi:id="0"/>) in the features for an annotation, a
> NullPointerException is thrown at line 693 of CasSerializerSupport. It
> appears that the ll_getTypeForCode(0) returns null, resulting in a
> NullPointerException when the "getName()" method is called on the return
> object.
> The same CAS can successfully be serialized to XML using the XmlCasSerializer.
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