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Error returned from websphere server shown below when check_jmx runs. What causes this error? application configuration error?

$ /usr/local/nagios/libexec/check_jmx -U service:jmx:rmi:///jndi/rmi://AZWAPPJISCPS01.mfcgd.com:5190/jmxrmi -O java.lang:type=Threading -A ThreadCount -c 225
JMX CRITICAL - JVMVRFY027 receiver is incompatible with declaring class; class=javax/management/remote/rmi/RMIConnectionImpl$CombinedClassLoader, method=loadClass(Ljava/lang/String;Z)Ljava/lang/Class;, pc=203
Exception Details:
Location:
javax/management/remote/rmi/RMIConnectionImpl$CombinedClassLoader.loadClass(Ljava/lang/String;Z)Ljava/lang/Class; @203: JBinvokevirtual
Reason:
Type 'java/lang/Object' (current frame, stack[2]) is not assignable to 'java/lang/Throwable'
Current Frame:
bci: @203
flags: { }
locals: { 'javax/management/remote/rmi/RMIConnectionImpl$CombinedClassLoader', 'java/lang/String', integer, integer, null, top, top, top, top, top, top, top, top, integer, 'java/lang/String', 'javax/management/remote/rmi/RMIConnectionImpl$CombinedClassLoader', 'java/lang/Exception', 'java/lang/Object' }
stack: { 'uninitialized', 'uninitialized', 'java/lang/Object' }
Exception Handler Table:
bci [150, 160] => handler: 163
bci [63, 92] => handler: 98
bci [5, 117] => handler: 117
bci [251, 254] => handler: 254
Stackmap Table:
full_frame(@46,{Object[#5],Object[#25],integer,integer,null,Object[#25],Object[#5]},{})
same_frame(@50)
same_locals_1_stack_item_frame(@51,integer)
same_locals_1_stack_item_frame(@54,integer)
full_frame(@95,{Object[#5],Object[#25],integer,integer,null,Object[#25],Object[#5],Object[#25],Object[#5],Object[#6],Object[#6]},{})
full_frame(@98,{Object[#5],Object[#25],integer,integer,null,Object[#25],Object[#5],Object[#25],Object[#5]},{Object[#16]})
append_frame(@100,Object[#28])
same_locals_1_stack_item_frame(@104,Object[#30])
chop_frame(@114,3)
full_frame(@117,{Object[#5],Object[#25],integer,integer,null},{Object[#16]})
full_frame(@134,{Object[#5],Object[#25],integer,integer,null,top,top,top,top,top,top,top,Object[#16]},{})
full_frame(@136,{Object[#5],Object[#25],integer,integer,null},{})
full_frame(@163,{Object[#5],Object[#25],integer,integer,null,top,top,top,top,top,top,top,top,integer,Object[#25],Object[#5]},{Object[#24]})
append_frame(@169,Object[#24],Object[#28])
same_frame(@197)
same_locals_1_stack_item_frame(@211,Object[#36])
same_frame(@212)
chop_frame(@222,2)
full_frame(@241,{Object[#5],Object[#25],integer,integer,null,top,top,top,top,top,top,top,top,integer,Object[#25],Object[#5],Object[#30]},{Object[#30]})
full_frame(@251,{Object[#5],Object[#25],integer,integer,Object[#30],top,top,top,top,top,top,top,top,integer,Object[#25],Object[#5],Object[#30]},{})
same_locals_1_stack_item_frame(@254,Object[#16])
full_frame(@271,{Object[#5],Object[#25],integer,integer,Object[#30],top,top,top,top,top,top,top,Object[#16],integer,Object[#25],Object[#5],Object[#30]},{})

There appear to be some comments about similar things on that plugin's page:

https://exchange.nagios.org/directory/P ... mx/details

You might have a look at that, and try those suggestions.

--Jeffrey