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From "Johan Hedlund" <jo...@dprof.net>
Subject Re: Junit Sampler with spring RMI connection proxy causing Exception
Date Fri, 17 Aug 2007 10:05:55 GMT
Hi,

Thanks for the suggestion. I just found that it was actually a strange bug
in JMeter versioning... I had created a project in JMeter 2.2 - where I got
the strange RMI problem - and then when I downloaded the newer version of
JMeter (2.3 RC3), I just copied over the project from the old jmeter
version. This unfortunately meant that I transferred over the problem! When
I - many desperate hours later - recreated the project from scratch in the
newset JMeter version, everything worked fine... Very strange, but at least
now it works for me!

Thanks

/Johan

On 16/08/07, sebb <sebbaz@gmail.com> wrote:
>
> I'm not very familiar with RMI - and debugging it seems to be
> extremely difficult.
>
> All I can suggest is that perhaps there is a classpath problem on the
> RMI server.
>
> S
> On 16/08/07, Johan Hedlund <johan@dprof.net> wrote:
> > Hi,
> >
> > I'm trying to use JMeter to run unit tests that use spring to connect to
> a
> > remote RMI service. I use the spring RMI proxy both on the server and on
> the
> > client side to handle the RMI connection, meaning that my RMI service
> > interface does not extend Remote.
> >
> > My unit tests run just fine outside of JMeter (in maven or in Eclipse),
> but
> > when I try to run them in JMeter I get strange RMI Exceptions (included
> at
> > the end of this post). The exception mentions not having a protocol, but
> my
> > service url DOES work as intended outside of JMeter, so that can't be
> it.
> >
> > I've done some more testing to try to narrow down the problem, and have
> come
> > to the conclusion that the RMI connection fails in JMeter if the remote
> > service is published using an interface that does not extend Remote, but
> > works fine if it DOES extend it.
> >
> > Has anyone else come across this problem, and is there any explanation
> for
> > it or way around it?
> >
> > Thanks
> >
> > /Johan
> >
> >
> > The stack trace is:
> >
> >
> > java.rmi.ServerException: RemoteException occurred in server thread;
> nested
> > exception is:
> >        java.rmi.UnmarshalException: error unmarshalling arguments;
> nested
> > exception is:
> >        java.net.MalformedURLException: no protocol: and
> >        at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java
> :325)
> >        at sun.rmi.transport.Transport$1.run(Transport.java:153)
> >        at java.security.AccessController.doPrivileged(Native Method)
> >        at sun.rmi.transport.Transport.serviceCall(Transport.java:149)
> >        at sun.rmi.transport.tcp.TCPTransport.handleMessages(
> > TCPTransport.java:460)
> >        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(
> > TCPTransport.java:701)
> >        at java.lang.Thread.run(Thread.java :595)
> >        at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer
> (Unknown
> > Source)
> >        at sun.rmi.transport.StreamRemoteCall.executeCall(Unknown Source)
> >        at sun.rmi.server.UnicastRef.invoke (Unknown Source)
> >        at
> org.springframework.remoting.rmi.RmiInvocationWrapper_Stub.invoke(Unknown
> > Source)
> >        at com.drkw.cpds.sos.clients.eca.EcaAsClientOfSosTest.testSOSRMI(
> > EcaAsClientOfSosTest.java:164)
> >        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> >        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> >        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown
> Source)
> >        at java.lang.reflect.Method.invoke(Unknown Source)
> >        at org.apache.jmeter.protocol.java.sampler.JUnitSampler$1.protect
> (
> > JUnitSampler.java:372)
> >        at junit.framework.TestResult.runProtected(TestResult.java :124)
> >        at org.apache.jmeter.protocol.java.sampler.JUnitSampler.sample(
> > JUnitSampler.java:375)
> >        at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java
> :247)
> >        at java.lang.Thread.run(Unknown Source)
> > Caused by: java.rmi.UnmarshalException: error unmarshalling arguments;
> > nested exception is:
> >        java.net.MalformedURLException: no protocol: and
> >        at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java
> :282)
> >        at sun.rmi.transport.Transport$1.run(Transport.java:153)
> >        at java.security.AccessController.doPrivileged(Native Method)
> >        at sun.rmi.transport.Transport.serviceCall(Transport.java:149)
> >        at sun.rmi.transport.tcp.TCPTransport.handleMessages(
> > TCPTransport.java:460)
> >        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(
> > TCPTransport.java:701)
> >        at java.lang.Thread.run(Thread.java :595)
> > Caused by: java.net.MalformedURLException: no protocol: and
> >        at java.net.URL.<init>(URL.java:567)
> >        at java.net.URL.<init>(URL.java:464)
> >        at java.net.URL.<init>(URL.java :413)
> >        at sun.rmi.server.LoaderHandler.pathToURLs(LoaderHandler.java
> :747)
> >        at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:147)
> >        at java.rmi.server.RMIClassLoader$2.loadClass(RMIClassLoader.java
> :620)
> >        at java.rmi.server.RMIClassLoader.loadClass(RMIClassLoader.java
> :247)
> >        at sun.rmi.server.MarshalInputStream.resolveClass(
> > MarshalInputStream.java:197)
> >        at java.io.ObjectInputStream.readNonProxyDesc (
> > ObjectInputStream.java:1538)
> >        at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java
> > :1460)
> >        at java.io.ObjectInputStream.readOrdinaryObject(
> > ObjectInputStream.java:1693)
> >        at java.io.ObjectInputStream.readObject0 (ObjectInputStream.java
> > :1299)
> >        at java.io.ObjectInputStream.readObject(ObjectInputStream.java
> :339)
> >        at sun.rmi.server.UnicastRef.unmarshalValue(UnicastRef.java:290)
> >        at sun.rmi.server.UnicastServerRef.dispatch (
> UnicastServerRef.java
> > :279)
> >        ... 6 more
> >
>
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