users@jersey.java.net

ClassCastException on deploying ContextResolver?

From: Laird Nelson <ljnelson_at_gmail.com>
Date: Mon, 26 Apr 2010 10:07:25 -0400

I have an EJB class that is annoted with the @Provider annotation,
because it (deliberately) implements ContextProvider<Class>.

When the classpath is scanned at deployment time, Jersey blows up with
a ClassCastException:

[#|2010-04-26T10:03:23.187-0400|INFO|glassfish3.0|com.sun.jersey.server.impl.ejb.EJBComponentProviderFactory|_ThreadID=26;_ThreadName=Thread-1;|Binding
the EJB class com.jenzabar.ngp.constituent.ejb.ConstituentTypeBean to
EJBManagedComponentProvider|#]

[#|2010-04-26T10:03:23.265-0400|SEVERE|glassfish3.0|javax.enterprise.system.container.web.com.sun.enterprise.web|_ThreadID=26;_ThreadName=http-thread-pool-8080-(2);|WebModule[/ngp-war-test-1.0-SNAPSHOT]StandardWrapper.Throwable
java.lang.ClassCastException
        at java.lang.Class.cast(Class.java:2990)
        at com.sun.jersey.core.spi.component.ProviderServices.getProviders(ProviderServices.java:126)
        at com.sun.jersey.core.spi.factory.ContextResolverFactory.<init>(ContextResolverFactory.java:78)
        at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:804)
        at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:589)
        at com.sun.jersey.spi.container.servlet.ServletContainer.initiate(ServletContainer.java:403)
        at com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.initiate(ServletContainer.java:252)
        at com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java:550)
        at com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:201)
        at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:307)
        at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:470)
        at javax.servlet.GenericServlet.init(GenericServlet.java:242)
        at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1428)
        at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:1073)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:187)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641)
        at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97)
        at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185)
        at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:332)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:233)
        at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165)
        at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)
        at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)
        at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)
        at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170)
        at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
        at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
        at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
        at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
        at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
        at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
        at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
        at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330)
        at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309)
        at java.lang.Thread.run(Thread.java:619)
|#]

What can I do to work around this problem?

Best,
Laird