Thilo,

Thank you for the comment.
I took following steps but the result is the same.

1. set /uimaj-2.2.0-incubating-bin/apache-uima/lib as a classpath
2. clean compiled classes and build

any comments will be appreciated.

Isaac

On 11/20/07, Thilo Goetz <twgoetz@gmx.de> wrote:
> Hi,
>
> this looks like you may be referring to an old version
> of your JCas classes in your classpath.  The invocation
> exception may be caused because the old version of the
> Person class doesn't have the company feature yet.  Please
> check your classpath and make sure the classes you run
> with are the same ones you compile against.
>
> --Thilo
>
> ISAO Isaac Saito wrote:
> > Hi all,
> >
> > Could anybody has a solution to the problem I describe below?
> >
> > Thanks in adv,
> >  Isaac
> >
> >
> > - What I Want:
> >  set an array of String as a feature and get them
> >
> >
> > - Phenomenon:
> >
> >  -- Exception occurs and application terminates after executing
> > System.out.print(person.getCompany_related().toArray())
> >
> >  Exception in thread "main" java.lang.NullPointerException
> >       at org.apache.uima.cas.impl.CASImpl.ll_getFSForRef(CASImpl.java:2745)
> >
> >
> >  -- the content of variable shows "com.sun.jdi.InvocationException
> > occurred invoking method." after executing
> > person.setCompany_related(compArray).
> >   This can be seen by using eclipse' debug mode.
> >
> >
> > - java code
> >
> > private void extractNeeFromText(String descpath, String htmlBody,
> > Annotation person) {
> >       XMLInputSource in = null;
> >       try {
> >               in = new XMLInputSource(descpath);
> >       } catch (IOException e) {
> >               e.printStackTrace();
> >       }
> >       AnalysisEngine ae = AnalysisEngineUtil.getAeInstance(in);
> >       ResourceSpecifier specifier = null;
> >       AnalysisEngine ae = null;
> >       try {
> >               specifier = UIMAFramework.getXMLParser().parseResourceSpecifier(
> >                                       desc);
> >               ae = UIMAFramework.produceAnalysisEngine(specifier);
> >       } catch (InvalidXMLException e) {
> >               e.printStackTrace();
> >       } catch (ResourceInitializationException e) {
> >               e.printStackTrace();
> >       }
> >               JCas jcas = AnalysisEngineUtil.analyzeByAnalysisEngine(ae, htmlBody);
> >       FSIndex index = jcas.getJFSIndexRepository().getAnnotationIndex(
> >                               Company.type);
> >       StringArray compArray = new StringArray(jcas, index.size());
> >       FSIterator compIter = index.iterator();
> >       int num_company = 0;
> >       while (compIter.hasNext()) {
> >               Company annot = (Company) compIter.next();
> >               compArray.set(num_company, annot.getLex());
> >               // TODO remove redundunt values
> >               num_company++;
> >       }
> >       person.setCompany_related(compArray);
> >       System.out.println(person.getCompany_related().toArray());
> > }
> >
> >
> > - type system desctiption
> >
> > <?xml version="1.0" encoding="UTF-8"?>
> > <typeSystemDescription xmlns="http://uima.apache.org/resourceSpecifier">
> > <name>Person-Wikip_TypeSystemDescriptor</name>
> > <description></description>
> > <version>1.0</version>
> > <vendor>ISAAC</vendor>
> > <imports>
> > <import location="../../tae_nee_apacheUima/desc/NamedEntityTypeSystemDescriptor.xml"/>
> > </imports>
> > <types>
> > <typeDescription>
> > <name>jp.ac.keio.dmc.context.srw.types.PersonWikip</name>
> > <description>w</description>
> > <supertypeName>uima.tcas.Annotation</supertypeName>
> > <features>
> > <featureDescription>
> > <name>company_related</name>
> > <description></description>
> > <rangeTypeName>uima.cas.StringArray</rangeTypeName>
> > </featureDescription>
> > </features>
> > </typeDescription>
> > </types>
> > </typeSystemDescription>
> >
> >
> > - Referred conversation
> > http://www.ibm.com/developerworks/forums/thread.jspa?threadID=129534
>