ClassCastException when using JAXB and MetaModel annotation processor
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Key: OPENJPA-1965
URL: https://issues.apache.org/jira/browse/OPENJPA-1965
Project: OpenJPA
Issue Type: Bug
Components: tooling
Affects Versions: 2.1.0, 2.0.0, 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:
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....
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$PackageSymbol cannot be cast to
javax.lang.model.element.TypeElement
[javac] at
org.apache.openjpa.persistence.meta.AnnotationProcessor6.process(AnnotationProcessor6.java:207)
[javac] at
com.sun.tools.javac.processing.JavacProcessingEnvironment.callProcessor(JavacProcessingEnvironment.java:625)
[javac] at
com.sun.tools.javac.processing.JavacProcessingEnvironment.discoverAndRunProcs(JavacProcessingEnvironment.java:554)
[javac] at
com.sun.tools.javac.processing.JavacProcessingEnvironment.doProcessing(JavacProcessingEnvironment.java:699)
[javac] at
com.sun.tools.javac.main.JavaCompiler.processAnnotations(JavaCompiler.java:981)
[javac] at
com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:727)
[javac] at com.sun.tools.javac.main.Main.compile(Main.java:353)
[javac] at com.sun.tools.javac.main.Main.compile(Main.java:279)
[javac] at com.sun.tools.javac.main.Main.compile(Main.java:270)
[javac] at com.sun.tools.javac.Main.compile(Main.java:69)
[javac] at com.sun.tools.javac.Main.main(Main.java:54)
....
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Details on how to recreate :
....
Hi,
this is nearly impossible because its not an Entity which makes the problem
here. Its a package. I have no idea how to unit test that. Perhaps you can try
creating
a simple package with JAXB generated classes in it and try to reproduce:
1) create a very simple XSD file
2) run the JAXB compiler via ANT (then you should have some classes in
myweirdpackage)
<target name="JAXBCompiling" description="Compile main source tree java
files">
<taskdef name="xjc" classname="com.sun.tools.xjc.XJC2Task"
classpathref="toolingclasspath"/>
<xjc schema="my.xsd" destdir="${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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