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From "Richard Eckart de Castilho (JIRA)" <...@uima.apache.org>
Subject [jira] [Created] (UIMA-5554) Strange exception when trying to get JCas FS class through reflection
Date Fri, 08 Sep 2017 10:07:00 GMT
Richard Eckart de Castilho created UIMA-5554:
------------------------------------------------

             Summary: Strange exception when trying to get JCas FS class through reflection
                 Key: UIMA-5554
                 URL: https://issues.apache.org/jira/browse/UIMA-5554
             Project: UIMA
          Issue Type: Bug
          Components: Core Java Framework
    Affects Versions: 3.0.0SDK-beta
            Reporter: Richard Eckart de Castilho


I am trying to get a class object for a JCas FS type using reflection:

{noformat}
Class.forName(typeName);
{noformat}

However, it produces this strange error.

{noformat}
java.lang.ExceptionInInitializerError
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:264)
...
Caused by: org.apache.uima.cas.CASRuntimeException: A JCas class field "sofa" is being initialized
by non-framework (user) code before Type System Commit for a type system with a corresponding
type. Either change the user load code to not do initialize, or to defer it until after the
type system commit.
	at org.apache.uima.cas.impl.TypeSystemImpl.getAdjustedFeatureOffset(TypeSystemImpl.java:2575)
	at org.apache.uima.jcas.cas.AnnotationBase.<clinit>(AnnotationBase.java:71)
	... 27 more
{noformat}

Is it considered harmful to try getting a class object for a JCas FS class?



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