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From "Rick Curtis (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (OPENJPA-1965) ClassCastException when using JAXB and MetaModel annotation processor
Date Fri, 25 Mar 2011 14:49:05 GMT

    [ https://issues.apache.org/jira/browse/OPENJPA-1965?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13011225#comment-13011225
] 

Rick Curtis commented on OPENJPA-1965:
--------------------------------------

Pinaki fixed this problem for trunk (2.2.0) in revision 1084944 .

> ClassCastException when using JAXB and MetaModel annotation processor
> ---------------------------------------------------------------------
>
>                 Key: OPENJPA-1965
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1965
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: tooling
>    Affects Versions: 2.0.0, 2.1.0, 2.2.0
>            Reporter: Rick Curtis
>            Assignee: Rick Curtis
>             Fix For: 2.1.1, 2.2.0
>
>
> This is a problem that was reported by Marc Logemann on the users mailing list. Details
from the email exchange:
> -----
> ....
> So i see a lot of metamodel classes got generated but during this process i got this:
>    [javac] An annotation processor threw an uncaught exception.
>    [javac] Consult the following stack trace for details.
>    [javac] java.lang.ClassCastException: com.sun.tools.javac.code.Symbol$PackageSymbol
cannot be cast to javax.lang.model.element.TypeElement
>    [javac]     at org.apache.openjpa.persistence.meta.AnnotationProcessor6.process(AnnotationProcessor6.java:207)
>    [javac]     at com.sun.tools.javac.processing.JavacProcessingEnvironment.callProcessor(JavacProcessingEnvironment.java:625)
>    [javac]     at com.sun.tools.javac.processing.JavacProcessingEnvironment.discoverAndRunProcs(JavacProcessingEnvironment.java:554)
>    [javac]     at com.sun.tools.javac.processing.JavacProcessingEnvironment.doProcessing(JavacProcessingEnvironment.java:699)
>    [javac]     at com.sun.tools.javac.main.JavaCompiler.processAnnotations(JavaCompiler.java:981)
>    [javac]     at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:727)
>    [javac]     at com.sun.tools.javac.main.Main.compile(Main.java:353)
>    [javac]     at com.sun.tools.javac.main.Main.compile(Main.java:279)
>    [javac]     at com.sun.tools.javac.main.Main.compile(Main.java:270)
>    [javac]     at com.sun.tools.javac.Main.compile(Main.java:69)
>    [javac]     at com.sun.tools.javac.Main.main(Main.java:54)
> ....
> -----
> Details on how to recreate :
> ....
> Hi,
> this is nearly impossible because its not an Entity which makes the problem here. Its
a package. I have no idea how to unit test that. Perhaps you can try creating
> a simple package with JAXB generated classes in it and try to reproduce:
> 1) create a very simple XSD file
> 2) run the JAXB compiler via ANT (then you should have some classes in myweirdpackage)
>    <target name="JAXBCompiling" description="Compile main source tree java files">
>        <taskdef name="xjc" classname="com.sun.tools.xjc.XJC2Task" classpathref="toolingclasspath"/>
>        <xjc schema="my.xsd" destdir="${src.dir}"  package="domain.myweirdpackage"/>
>  </target>
> 3) put at least one Entity in domain package (parent of myweirdpackage)
> 4) run the MetaModel compiling step

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