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https://issues.apache.org/jira/browse/GERONIMO-5256?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Simon Godik updated GERONIMO-5256:
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Attachment: geronimo-wadi-cl-bug.logs.tar.gz
geronimo-wadi-cl-bug-war.tar.gz
test application and logs attached
> in special cases wadi clustering thread fails to load web application classes
> -----------------------------------------------------------------------------
>
> Key: GERONIMO-5256
> URL: https://issues.apache.org/jira/browse/GERONIMO-5256
> Project: Geronimo
> Issue Type: Bug
> Security Level: public(Regular issues)
> Affects Versions: 2.1.4
> Environment: redhat 5.4, suse 11.2
> Reporter: Simon Godik
> Attachments: geronimo-wadi-cl-bug-war.tar.gz,
> geronimo-wadi-cl-bug.logs.tar.gz
>
>
> If object placed in a http session implements java.io.Externalizable and is
> loading web-app specific classes from the readExternal() method with the
> thread context classloader (which is
> org.apache.geronimo.configs/wadi-clustering/2.1.4/car classloader) class
> loading fails. This happens on the receiving side when session is replicated
> from the owning cluster member to the peer cluster member over wadi transport
> and is consumed by the wadi thread.
> This came about because some web frameworks load classes from the
> readExternal() method with TC classloader.
> I have a fix for this but it is not generic, so I'm not submitting it.
> Not sure how to attach files, so code and logs below:
> Code and log below.
> public void readExternal(ObjectInput in) throws IOException,
> ClassNotFoundException {
> this.state = (String) in.readObject();
>
> try {
> Class<?> clazz =
> Thread.currentThread().getContextClassLoader().loadClass("org.bpma.cluster.VerySpecial");
> this.verySpecial = (VerySpecial) clazz.newInstance();
> this.verySpecial.setHello("hello, very special!!!");
>
> System.out.println("VERY-SPECIAL LOADED FROM THE
> TC-CL");
> System.out.flush();
> } catch (InstantiationException e) {
> e.printStackTrace();
> } catch (IllegalAccessException e) {
> e.printStackTrace();
> }
> }
> Caused by: org.codehaus.wadi.core.WADIRuntimeException:
> java.lang.ClassNotFoundException: org.bpma.cluster.VerySpecial in classloader
> org.apache.geronimo.configs/wadi-clustering/2.1.4/car
> at
> org.codehaus.wadi.replication.manager.basic.SessionStateHandler.resto
> reFromFullState(SessionStateHandler.java:78)
> at
> org.codehaus.wadi.replication.storage.memory.SyncMemoryReplicaStorage
> .mergeCreate(SyncMemoryReplicaStorage.java:83)
> ... 20 more
> Caused by: java.lang.ClassNotFoundException: org.bpma.cluster.VerySpecial in
> cla
> ssloader org.apache.geronimo.configs/wadi-clustering/2.1.4/car
> at
> org.apache.geronimo.kernel.config.MultiParentClassLoader.loadOptimize
> dClass(MultiParentClassLoader.java:438)
> at
> org.apache.geronimo.kernel.config.MultiParentClassLoader.loadClass(Mu
> ltiParentClassLoader.java:280)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
> at org.bpma.cluster.TcLoading.readExternal(TcLoading.java:35)
> at
> java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:179
> 2)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1
> 751)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:19
> 47)
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1
> 753)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
> at
> org.codehaus.wadi.core.session.DistributableAttributesMemento.readExt
> ernal(DistributableAttributesMemento.java:36)
> at
> org.codehaus.wadi.core.session.DistributableSessionMemento.readExtern
> al(DistributableSessionMemento.java:31)
> at
> org.codehaus.wadi.core.eviction.SimpleEvictable.readExternal(SimpleEv
> ictable.java:91)
> at org.codehaus.wadi.core.util.Utils.setContent(Utils.java:78)
> at
> org.codehaus.wadi.replication.manager.basic.SessionStateHandler.resto
> reFromFullState(SessionStateHandler.java:76)
> ... 21 more
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