Bug! Hot-deploying the same bean more than once results in a DeploymentException!

Hi all,
Anyone else having this problem? When re-deploying an EJB within a
running WL server 4.5.1 w/ sp9 more than once results in the following
DeploymentException. The first time we re-deploy it works fine, but any
re-deployments after that fail.
This is potentially fatal in that if we have to make more than one
change to a bean over time and re-deploy those changes, we have to cycle
the server, which is NOT acceptable for a production environment!
Any clues or workarounds would be greatly appreciated.....Thanks!
BP
[xxxx.xxxx.com] < /pkg/bea > java -classpath
/pkg/bea/classes:/pkg/bea/lib/weblogicaux.jar weblogic.deploy -redeploy
xxxxxxx file:/pkg/bea/classes/OurSessionBean.jar
weblogic.ejb.common.DeploymentException: Unable to create bean
classloader:
weblogic.ejb.common.DeploymentException: loading EJB JAR
/local/pkg/bea/depot/weblogic-4.51/classes/OurSessionBean.jar; nested
exception is:
java.io.EOFException
java.io.EOFException
at java.lang.Throwable.fillInStackTrace(Native Method)
at java.lang.Throwable.fillInStackTrace(Compiled Code)
at java.lang.Throwable.<init>(Compiled Code)
at java.lang.Exception.<init>(Compiled Code)
at java.io.IOException.<init>(IOException.java:35)
at java.io.EOFException.<init>(EOFException.java:43)
at java.io.DataInputStream.readUnsignedShort(Compiled Code)
at
weblogic.utils.classfile.LineNumberTable_attribute$line_num_struct.read(Compiled
Code)
at
weblogic.utils.classfile.LineNumberTable_attribute.read(Compiled Code)
at weblogic.utils.classfile.AttributeTable.read(Compiled Code)
at weblogic.utils.classfile.Code_attribute.read(Compiled Code)
at weblogic.utils.classfile.AttributeTable.read(Compiled Code)
at weblogic.utils.classfile.ClassMember.read(Compiled Code)
at weblogic.utils.classfile.MethodTable.read(Compiled Code)
at weblogic.utils.classfile.ClassFile.read(Compiled Code)
at weblogic.utils.classfile.ClassFile.<init>(Compiled Code)
at weblogic.ejb.internal.EJBJarLoader.computeExclude(Compiled
Code)
at weblogic.ejb.internal.EJBJarLoader.initialize(Compiled Code)
at weblogic.ejb.internal.EJBJarLoader.<init>(Compiled Code)
at weblogic.ejb.internal.EJBJarLoader.<init>(Compiled Code)
at weblogic.ejb.internal.EJBJarDeployment.setup(Compiled Code)
at weblogic.ejb.internal.EJBJarDeployment.redeploy(Compiled
Code)
at
weblogic.ejb.internal.EJBJarDeployment.redeploy(EJBJarDeployment.java:629)
at
weblogic.ejb.internal.EJBManagerImpl.redeploy(EJBManagerImpl.java:266)
at
weblogic.ejb.common.EJBManager_WLSkel.invoke(EJBManager_WLSkel.java:169)
at
weblogic.rmi.extensions.BasicServerObjectAdapter.invoke(Compiled Code)
at
weblogic.rmi.extensions.BasicRequestHandler.handleRequest(Compiled Code)
at
weblogic.rmi.extensions.BasicRequestDispatcher$BasicExecuteRequest.execute(Compiled
Code)
at weblogic.t3.srvr.ExecuteThread.run(Compiled Code)
at java.lang.Throwable.fillInStackTrace(Native Method)
at
weblogic.rmi.extensions.BasicRequest.sendReceive(BasicRequest.java:44)
at
weblogic.ejb.common.EJBManager_WLStub.redeploy(EJBManager_WLStub.java:312)
at weblogic.deploy.deploy(deploy.java:129)
at weblogic.deploy.runBody(deploy.java:79)
at weblogic.utils.compiler.Tool.run(Tool.java:55)
at weblogic.deploy.main(deploy.java:140)

how about undeploy an already deployed bean first and then trying to redeploy.
becoz i know there's an option like that with DDDeploy. I am talking of 5.1 but the
logic should probably work in 4.5 too.
Try doing it and see what happens.
-Vikas
Blah Blah wrote:
Hi all,
Anyone else having this problem? When re-deploying an EJB within a
running WL server 4.5.1 w/ sp9 more than once results in the following
DeploymentException. The first time we re-deploy it works fine, but any
re-deployments after that fail.
This is potentially fatal in that if we have to make more than one
change to a bean over time and re-deploy those changes, we have to cycle
the server, which is NOT acceptable for a production environment!
Any clues or workarounds would be greatly appreciated.....Thanks!
BP
[xxxx.xxxx.com] < /pkg/bea > java -classpath
/pkg/bea/classes:/pkg/bea/lib/weblogicaux.jar weblogic.deploy -redeploy
xxxxxxx file:/pkg/bea/classes/OurSessionBean.jar
weblogic.ejb.common.DeploymentException: Unable to create bean
classloader:
weblogic.ejb.common.DeploymentException: loading EJB JAR
/local/pkg/bea/depot/weblogic-4.51/classes/OurSessionBean.jar; nested
exception is:
java.io.EOFException
java.io.EOFException
at java.lang.Throwable.fillInStackTrace(Native Method)
at java.lang.Throwable.fillInStackTrace(Compiled Code)
at java.lang.Throwable.<init>(Compiled Code)
at java.lang.Exception.<init>(Compiled Code)
at java.io.IOException.<init>(IOException.java:35)
at java.io.EOFException.<init>(EOFException.java:43)
at java.io.DataInputStream.readUnsignedShort(Compiled Code)
at
weblogic.utils.classfile.LineNumberTable_attribute$line_num_struct.read(Compiled
Code)
at
weblogic.utils.classfile.LineNumberTable_attribute.read(Compiled Code)
at weblogic.utils.classfile.AttributeTable.read(Compiled Code)
at weblogic.utils.classfile.Code_attribute.read(Compiled Code)
at weblogic.utils.classfile.AttributeTable.read(Compiled Code)
at weblogic.utils.classfile.ClassMember.read(Compiled Code)
at weblogic.utils.classfile.MethodTable.read(Compiled Code)
at weblogic.utils.classfile.ClassFile.read(Compiled Code)
at weblogic.utils.classfile.ClassFile.<init>(Compiled Code)
at weblogic.ejb.internal.EJBJarLoader.computeExclude(Compiled
Code)
at weblogic.ejb.internal.EJBJarLoader.initialize(Compiled Code)
at weblogic.ejb.internal.EJBJarLoader.<init>(Compiled Code)
at weblogic.ejb.internal.EJBJarLoader.<init>(Compiled Code)
at weblogic.ejb.internal.EJBJarDeployment.setup(Compiled Code)
at weblogic.ejb.internal.EJBJarDeployment.redeploy(Compiled
Code)
at
weblogic.ejb.internal.EJBJarDeployment.redeploy(EJBJarDeployment.java:629)
at
weblogic.ejb.internal.EJBManagerImpl.redeploy(EJBManagerImpl.java:266)
at
weblogic.ejb.common.EJBManager_WLSkel.invoke(EJBManager_WLSkel.java:169)
at
weblogic.rmi.extensions.BasicServerObjectAdapter.invoke(Compiled Code)
at
weblogic.rmi.extensions.BasicRequestHandler.handleRequest(Compiled Code)
at
weblogic.rmi.extensions.BasicRequestDispatcher$BasicExecuteRequest.execute(Compiled
Code)
at weblogic.t3.srvr.ExecuteThread.run(Compiled Code)
at java.lang.Throwable.fillInStackTrace(Native Method)
at
weblogic.rmi.extensions.BasicRequest.sendReceive(BasicRequest.java:44)
at
weblogic.ejb.common.EJBManager_WLStub.redeploy(EJBManager_WLStub.java:312)
at weblogic.deploy.deploy(deploy.java:129)
at weblogic.deploy.runBody(deploy.java:79)
at weblogic.utils.compiler.Tool.run(Tool.java:55)
at weblogic.deploy.main(deploy.java:140)

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