It is an interop scenario where the server side runs Tiger as the Mustang side runs Mustang.
Since the build 2 of Tiger Update 7, loads of warning stacks as the one below are printed when:
- a JMX IIOP connector server is deployed over Tiger U7 b2
- a JMX IIOP connector client is deployed over Mustang (tried b76 and b77)
When both sides use Tiger, all is fine.
When both sides use Mustang, all is fine.
Was fine with the server side deployed over Tiger U7 build 1.
See Comments to reproduce the issue.

Apr 4, 2006 10:51:45 PM com.sun.corba.se.impl.io.InputStreamHook throwOptionalDataIncompatibleException
WARNING: "IOP00800008: (MARSHAL) Not enough space left in current chunk"
org.omg.CORBA.MARSHAL: vmcid: OMG minor code: 8 completed: No
at com.sun.corba.se.impl.logging.OMGSystemException.rmiiiopOptionalDataIncompatible2(OMGSystemException.java:2709)
at com.sun.corba.se.impl.logging.OMGSystemException.rmiiiopOptionalDataIncompatible2(OMGSystemException.java:2731)
at com.sun.corba.se.impl.io.InputStreamHook.throwOptionalDataIncompatibleException(InputStreamHook.java:348)
at com.sun.corba.se.impl.io.InputStreamHook$InReadObjectPastDefaultsRemoteDidNotUseWOState.readData(InputStreamHook.java:342)
at com.sun.corba.se.impl.io.IIOPInputStream.read(IIOPInputStream.java:653)
at javax.management.MBeanFeatureInfo.readObject(MBeanFeatureInfo.java:222)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:589)
at com.sun.corba.se.impl.io.IIOPInputStream.invokeObjectReader(IIOPInputStream.java:1694)
at com.sun.corba.se.impl.io.IIOPInputStream.inputObjectUsingFVD(IIOPInputStream.java:1548)
at com.sun.corba.se.impl.io.IIOPInputStream.simpleReadObject(IIOPInputStream.java:398)
at com.sun.corba.se.impl.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.java:327)
at com.sun.corba.se.impl.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:293)
at com.sun.corba.se.impl.encoding.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:1034)
at com.sun.corba.se.impl.encoding.CDRInputStream.read_value(CDRInputStream.java:253)
at com.sun.corba.se.impl.io.ValueHandlerImpl.read_Array(ValueHandlerImpl.java:756)
at com.sun.corba.se.impl.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.java:325)
at com.sun.corba.se.impl.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:293)
at com.sun.corba.se.impl.encoding.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:1034)
at com.sun.corba.se.impl.encoding.CDRInputStream.read_value(CDRInputStream.java:253)
at com.sun.corba.se.impl.io.IIOPInputStream.inputObjectField(IIOPInputStream.java:1892)
at com.sun.corba.se.impl.io.IIOPInputStream.inputClassFields(IIOPInputStream.java:2311)
at com.sun.corba.se.impl.io.IIOPInputStream.defaultReadObjectDelegate(IIOPInputStream.java:570)
at com.sun.corba.se.impl.io.InputStreamHook.defaultReadObject(InputStreamHook.java:183)
at javax.management.MBeanInfo.readObject(MBeanInfo.java:669)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:589)
at com.sun.corba.se.impl.io.IIOPInputStream.invokeObjectReader(IIOPInputStream.java:1694)
at com.sun.corba.se.impl.io.IIOPInputStream.inputObjectUsingFVD(IIOPInputStream.java:1548)
at com.sun.corba.se.impl.io.IIOPInputStream.simpleReadObject(IIOPInputStream.java:398)
at com.sun.corba.se.impl.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.java:327)
at com.sun.corba.se.impl.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:293)
at com.sun.corba.se.impl.encoding.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:1034)
at com.sun.corba.se.impl.encoding.CDRInputStream.read_value(CDRInputStream.java:253)
at com.sun.jmx.remote.internal.PInputStream.read_value(Unknown Source)
at org.omg.stub.javax.management.remote.rmi._RMIConnection_Stub.getMBeanInfo(Unknown Source)
at javax.management.remote.rmi.RMIConnector$RemoteMBeanServerConnection.getMBeanInfo(RMIConnector.java:1037)
at com.sun.jdmk.remote.cascading.proxy.CascadingProxy.getMBeanInfo(CascadingProxy.java:359)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getNewMBeanClassName(DefaultMBeanServerInterceptor.java:321)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:307)
at com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:482)
at com.sun.jdmk.remote.cascading.proxy.ProxyCascadingAgent.showMBean(ProxyCascadingAgent.java:763)
at com.sun.jdmk.remote.cascading.proxy.ProxyCascadingAgent.start(ProxyCascadingAgent.java:435)
at com.sun.jdmk.remote.cascading.proxy.ProxyCascadingAgent.start(ProxyCascadingAgent.java:291)
at javasoft.sqe.jmx.test.functional.CascadingInstance.start(CascadingInstance.java:163)
at javasoft.sqe.jmx.test.functional.CascadingTest5.run(CascadingTest5.java:96)
at javasoft.sqe.jmx.share.TestStarter.<init>(TestStarter.java:40)
at javasoft.sqe.jmx.share.TestStarter.main(TestStarter.java:98)