Re: Error in CAS Serialization to JSON

[Marshall Schor <ms...@schor.com>]

I accidentally replied off list.  The reply was:

Can you describe your runtime environment?

The description for this particular error says "
this error is caught by the compiler; this error can only occur at run time if
the definition of a class has incompatibly changed."

What level of Java and UIMA etc., are you running?  Is it possible you have some
mixed levels?

-Marshall
On 6/6/2017 9:44 AM, Das, Tanmay wrote:
> Hi
>
> When I try to run the following line of code(as given in the guide) :
> jcs.serialize(cas, sw);
>
> It produces an error -
> Exception in thread "main" java.lang.IllegalAccessError: tried to access field org.apache.uima.cas.impl.CasSerializerSupport.COMPARATOR_SHORT_TYPENAME from class org.apache.uima.json.JsonCasSerializer$JsonDocSerializer
>        at org.apache.uima.json.JsonCasSerializer$JsonDocSerializer.collectUsedSubtypes(JsonCasSerializer.java:842)
>        at org.apache.uima.json.JsonCasSerializer$JsonDocSerializer.serializeJsonLdContext(JsonCasSerializer.java:717)
>        at org.apache.uima.json.JsonCasSerializer$JsonDocSerializer.writeFeatureStructures(JsonCasSerializer.java:532)
>        at org.apache.uima.cas.impl.CasSerializerSupport$CasDocSerializer.serialize(CasSerializerSupport.java:439)
>        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.serialize(JsonCasSerializer.java:289)
>
> The definition of COMPARATOR_SHORT_TYPENAME in class CasSerializerSupport :
>
>   final static Comparator<TypeImpl> COMPARATOR_SHORT_TYPENAME = new Comparator<TypeImpl>() {
>     public int compare(TypeImpl object1, TypeImpl object2) {
>       return object1.getShortName().compareTo(object2.getShortName());
>     }
>   };
>
> Can anyone thank me with the problem.
>
>
> Thanks
> -TD
>
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