Linkage Error in JBoss with Cactus

[Josh Smith <dy...@yahoo.com>]

I am attempting to run Cactus ServletTestCases against an EAR deployed in JBoss. 

If my test cases should fail due to data validation checks, it seems to work fine, but in many cases I a getting a Linkage error from inside JBoss that I don't know how to resolve. I am not sure if the Linkage error is Cactus related or not, but I never had the probem running under the older version of Cactus using the ServletTestRunner, but I get it after swtiching to the ServletRedirector (so I can run the tests from Maven). 

The Error message from one of the tests is below.

Occasionally I would see this during normal devlopment when  deployment didn't really go successfully. The AccountingToken object is in a common jar that is used by several things, but I can't tell if the error here is due to the Cactus ServletRedirector/Proxy, or if it is a JBoss issue. The Jar that contains the AccountingToken class exists once inside the EAR file that contains the app I am testing, and once inside the WAR file (deployed separately) that contains my integration test cases. 

Any help is appreciated. 




 <testcase time="0" classname="com.nrrs.integration.receivables.EstablishReceivableTestCase" name="testReceviable_create_happyPath">
    <error message="loader constraint violation: when resolving method &quot;com.nrrs.beans.CommonDataServiceLocalBD.getDebtDiscoveryCodes(Lcom/nrrs/common/token/AccountingToken;)Ljava/util/Map;&quot; the class loader (instance of org/jboss/web/tomcat/service/WebAppClassLoader) of the current class, com/nrrs/integration/receivables/EstablishReceivableTestCase, and the class loader (instance of org/jboss/mx/loading/UnifiedClassLoader3) for resolved class, com/nrrs/beans/CommonDataServiceLocalBD, have different Class objects for the type com/nrrs/common/token/AccountingToken used in the signature" type="java.lang.LinkageError">java.lang.LinkageError: loader constraint violation: when resolving method &quot;com.nrrs.beans.CommonDataServiceLocalBD.getDebtDiscoveryCodes(Lcom/nrrs/common/token/AccountingToken;)Ljava/util/Map;&quot; the class loader (instance of org/jboss/web/tomcat/service/WebAppClassLoader) of the current class,
 com/nrrs/integration/receivables/EstablishReceivableTestCase, and the class loader (instance of org/jboss/mx/loading/UnifiedClassLoader3) for resolved class, com/nrrs/beans/CommonDataServiceLocalBD, have different Class objects for the type com/nrrs/common/token/AccountingToken used in the signature
 at com.nrrs.integration.receivables.EstablishReceivableTestCase.setUp(EstablishReceivableTestCase.java:60)
 at junit.framework.TestCase.runBare(TestCase.java:132)
 at org.apache.cactus.internal.AbstractCactusTestCase.runBareServer(AbstractCactusTestCase.java:155)
 at org.apache.cactus.internal.server.AbstractWebTestCaller.doTest(AbstractWebTestCaller.java:120)
 at org.apache.cactus.internal.server.AbstractWebTestController.handleRequest_aroundBody0(AbstractWebTestController.java:94)
 at org.apache.cactus.internal.server.AbstractWebTestController.handleRequest_aroundBody1$advice(AbstractWebTestController.java:225)
 at org.apache.cactus.internal.server.AbstractWebTestController.handleRequest(AbstractWebTestController.java:1)
 at org.apache.cactus.server.ServletTestRedirector.doPost_aroundBody2(ServletTestRedirector.java:102)
 at org.apache.cactus.server.ServletTestRedirector.doPost_aroundBody3$advice(ServletTestRedirector.java:225)
 at org.apache.cactus.server.ServletTestRedirector.doPost(ServletTestRedirector.java:1)
 at org.apache.cactus.server.ServletTestRedirector.doGet_aroundBody0(ServletTestRedirector.java:73)
 at org.apache.cactus.server.ServletTestRedirector.doGet_aroundBody1$advice(ServletTestRedirector.java:225)
 at org.apache.cactus.server.ServletTestRedirector.doGet(ServletTestRedirector.java:1)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
 at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
 at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
 at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
 at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
 at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
 at java.lang.Thread.run(Thread.java:619)
</error>

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