Symptom
JCo Monitoring does not work properly. The Metadata Cache access throws an exception that can be also found in the defaultTrace files:
[...]
#Error#com.sap.tc.lm.itsam.jco.admin.cache.mbean.SAP_ITSAMJCoCacheManagementService_Impl#
com.sap.ASJ.csvc.pr0003#BC-MID-CON-JCO#sap.com/tc~lm~itsam~ui~jco~admin~ear#C0000A8C3C724A070000001900000238#315494451000000004#sap.com/tc~lm~itsam~ui~mainframe~wd#com.sap.tc.lm.itsam.jco.admin.cache.mbean.SAP_ITSAMJCoCacheManagementService_Impl#herthei#13122##98EB88AFDA9611E79D60000012CE1033#ab52a833da9c11e7b4ae000012ce1033##0#Thread[HTTP Worker [@1322759938],5,Dedicated_Application_Thread]#Plain##
Error when retrieving class meta data from cluster node <XXXXXXXXX>: javax.management.RuntimeMBeanException: RuntimeException invoking method classMetaDataNames#
[...]
The root exception is the following:
[...]
#Error#com.sap.engine.admin.model.itsam.fe.util.FEUtils#
#BC-JAS-ADM-ADM#appadmin#C0000A8C3C7249EF0000000200000238#315494451000000004#sap.com/tc~lm~itsam~ui~appadm~wd#com.sap.engine.admin.model.itsam.fe.util.FEUtils#herthei#13122##98EB88AFDA9611E79D60000012CE1033#90d13e99da9911e79921000012ce1033#BEC0C6C9DA9911E796AD000012CE1032#0#Thread[HTTP Worker [@1468893472],5,Dedicated_Application_Thread]#Plain##
Could not get status of current node.
[EXCEPTION]
java.lang.ClassCastException: Cannot cast class [Ljavax.management.ObjectName; to interface java.util.Set
[...]
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Environment
SAP NetWeaver for Application Server Java 7.3X/7.4/7.5
Product
Keywords
ClassCastException, Cannot cast class, javax.management.RuntimeMBeanException, RuntimeException, RuntimeMBeanException, JCo monitor, Metadata Cache , KBA , BC-JAS-ADM-ADM , Administration , BC-MID-CON-JCO , Java-Connector , Problem
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