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From "Vincent Massol" <vmas...@pivolis.com>
Subject RE: A VerrifyError due to Incompatible object argument for function Class.forName0
Date Sat, 08 Nov 2003 14:30:43 GMT
Hi Vivek,

A VerifyError is usually because you have compiled some class files with
one version of a framework and then you're executing these .class files
with another version of the framework in your classpath. Ideally this
shouldn't happen if binary compatibility is preserved between versions
of Cactus. This hasn't been the case. We're now trying to be more
careful but in order to be able to preserve it we still need to break
binary compatibility for a while.

To solve the problem, make sure any of your class that extends Cactus is
recompiled with whatever new version of Cactus you're now using.

Thanks
-Vincent

> -----Original Message-----
> From: vivek oswal [mailto:oswalvivek@yahoo.com]
> Sent: 08 November 2003 15:07
> To: cactus-user@jakarta.apache.org
> Subject: A VerrifyError due to Incompatible object argument for
function
> Class.forName0
> 
> Hey all,
>   I have configured cactus with
>  Jboss version 3.2.1 (jetty as the web-container)
>  My application is deployed as an exploded ear folder
> containing a war archive too. The web.xml for the
> webapplication have the necessary servlet entries and
> the JBOSS_HOME\server\default\lib contains the
> necessary cactus-libraries.
> 
> I have modified a sample servlet from cactus example
> to write my testcase. Upon invoking the same from the
> browser, I get the following failure which I have not
> been able to resolve:
> 
>   <?xml version="1.0" encoding="UTF-8" ?>
> - <testsuites>
> - <testsuite
> name="CRM.UserInterface.unittest.CustomerListWebServiceTest"
> tests="1" failures="1" errors="0" time="0.313">
> - <testcase name="warning" time="0.016">
>   <failure message="Exception in constructor:
> testSaveToSessionOK (java.lang.VerifyError: (class:
> org/apache/cactus/client/connector/http/HttpClientConnectionHelper,
> method: addUserData signature:
> (Lorg/apache/cactus/WebRequest;)V) Incompatible object
> argument for function call at
> java.lang.Class.forName0(Native Method) at
> java.lang.Class.forName(Class.java:141) at
>
org.apache.cactus.configuration.BaseConfiguration.<clinit>(BaseConfigura
ti
> on.java:94)
> at
> org.apache.cactus.ServletTestCase.init(ServletTestCase.java:188)
> at
> org.apache.cactus.ServletTestCase.<init>(ServletTestCase.java:164)
> at
>
CRM.UserInterface.unittest.CustomerListWebServiceTest.<init>(CustomerLis
tW
> ebServiceTest.java:25)
> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> Method) at
>
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorA
cc
> essorImpl.java:39)
> at
>
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingCons
tr
> uctorAccessorImpl.java:27)
> at
> java.lang.reflect.Constructor.newInstance(Constructor.java:274)
> at
> junit.framework.TestSuite.createTest(TestSuite.java:135)
> at
> junit.framework.TestSuite.addTestMethod(TestSuite.java:114)
> at junit.framework.TestSuite.<init>(TestSuite.java:75)
> at
>
CRM.UserInterface.unittest.CustomerListWebServiceTest.suite(CustomerList
We
> bServiceTest.java:30)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
> Method) at
>
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:
> 39)
> at
>
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Im
> pl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:324) at
> junit.runner.BaseTestRunner.getTest(BaseTestRunner.java:111)
> at
>
org.apache.cactus.server.runner.ServletTestRunner.run(ServletTestRunner.
ja
> va:302)
> at
>
org.apache.cactus.server.runner.ServletTestRunner.doGet_aroundBody0(Serv
le
> tTestRunner.java:209)
> at
>
org.apache.cactus.server.runner.ServletTestRunner.doGet_aroundBody1$advi
ce
> (ServletTestRunner.java:151)
> at
>
org.apache.cactus.server.runner.ServletTestRunner.doGet(ServletTestRunne
r.
> java)
> at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
> at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> at
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:360)
> at
>
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationH
an
> dler.java:294)
> at
>
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:558)
> at
> org.mortbay.http.HttpContext.handle(HttpContext.java:1714)
> at
>
org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationCon
te
> xt.java:507)
> at
> org.mortbay.http.HttpContext.handle(HttpContext.java:1664)
> at
> org.mortbay.http.HttpServer.service(HttpServer.java:863)
> at org.jboss.jetty.Jetty.service(Jetty.java:460) at
> org.mortbay.http.HttpConnection.service(HttpConnection.java:775)
> at
> org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:939)
> at
> org.mortbay.http.HttpConnection.handle(HttpConnection.java:792)
> at
>
org.mortbay.http.SocketListener.handleConnection(SocketListener.java:201
)
> at
> org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)
> at
> org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:455)
> )"
>
type="junit.framework.AssertionFailedError">junit.framework.AssertionFai
le
> dError:
> Exception in constructor: testSaveToSessionOK
> (java.lang.VerifyError: (class:
> org/apache/cactus/client/connector/http/HttpClientConnectionHelper,
> method: addUserData signature:
> (Lorg/apache/cactus/WebRequest;)V) Incompatible object
> argument for function call at
> java.lang.Class.forName0(Native Method) at
> java.lang.Class.forName(Class.java:141) at
>
org.apache.cactus.configuration.BaseConfiguration.<clinit>(BaseConfigura
ti
> on.java:94)
> at
>
CRM.UserInterface.unittest.CustomerListWebServiceTest.<init>(CustomerLis
tW
> ebServiceTest.java:25)
> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> Method) at
>
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorA
cc
> essorImpl.java:39)
> at
>
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingCons
tr
> uctorAccessorImpl.java:27)
> at
> java.lang.reflect.Constructor.newInstance(Constructor.java:274)
> at
>
CRM.UserInterface.unittest.CustomerListWebServiceTest.suite(CustomerList
We
> bServiceTest.java:30)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
> Method) at
>
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:
> 39)
> at
>
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Im
> pl.java:25)
> at
> junit.runner.BaseTestRunner.getTest(BaseTestRunner.java:111)
> at
>
org.apache.cactus.server.runner.ServletTestRunner.run(ServletTestRunner.
ja
> va:302)
> at
>
org.apache.cactus.server.runner.ServletTestRunner.doGet_aroundBody0(Serv
le
> tTestRunner.java:209)
> at
>
org.apache.cactus.server.runner.ServletTestRunner.doGet_aroundBody1$advi
ce
> (ServletTestRunner.java:151)
> at
>
org.apache.cactus.server.runner.ServletTestRunner.doGet(ServletTestRunne
r.
> java)
> at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
> at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> at
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:360)
> at
>
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationH
an
> dler.java:294)
> at
>
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:558)
> at
> org.mortbay.http.HttpContext.handle(HttpContext.java:1714)
> at
>
org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationCon
te
> xt.java:507)
> at
> org.mortbay.http.HttpContext.handle(HttpContext.java:1664)
> at
> org.mortbay.http.HttpServer.service(HttpServer.java:863)
> at org.jboss.jetty.Jetty.service(Jetty.java:460) at
> org.mortbay.http.HttpConnection.service(HttpConnection.java:775)
> at
> org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:939)
> at
> org.mortbay.http.HttpConnection.handle(HttpConnection.java:792)
> at
>
org.mortbay.http.SocketListener.handleConnection(SocketListener.java:201
)
> at
> org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)
> at
> org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:455)
> ) at
>
org.apache.cactus.server.runner.ServletTestRunner.run(ServletTestRunner.
ja
> va:313)
> at
>
org.apache.cactus.server.runner.ServletTestRunner.doGet_aroundBody0(Serv
le
> tTestRunner.java:209)
> at
>
org.apache.cactus.server.runner.ServletTestRunner.doGet_aroundBody1$advi
ce
> (ServletTestRunner.java:151)
> at
>
org.apache.cactus.server.runner.ServletTestRunner.doGet(ServletTestRunne
r.
> java)
> at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
> at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> at
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:360)
> at
>
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationH
an
> dler.java:294)
> at
>
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:558)
> at
> org.mortbay.http.HttpContext.handle(HttpContext.java:1714)
> at
>
org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationCon
te
> xt.java:507)
> at
> org.mortbay.http.HttpContext.handle(HttpContext.java:1664)
> at
> org.mortbay.http.HttpServer.service(HttpServer.java:863)
> at org.jboss.jetty.Jetty.service(Jetty.java:460) at
> org.mortbay.http.HttpConnection.service(HttpConnection.java:775)
> at
> org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:939)
> at
> org.mortbay.http.HttpConnection.handle(HttpConnection.java:792)
> at
>
org.mortbay.http.SocketListener.handleConnection(SocketListener.java:201
)
> at
> org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)
> at
>
org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:455)</failure
>
> 
>   </testcase>
>   </testsuite>
>   </testsuites>
> Where am I screwing up??
> 
> regards,
> vivek
> 
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