SAP Knowledge Base Article - Preview

2828993 - Introscope/ByteCode Adapters: Exception while trying to invoke the method java.lang.String.length() of a null object loaded from local variable 'str'

Symptom

  1. When running the Introscope Host Adater or Byte Code Adapter activities in the managed system configuration of a Java system, the following error is raised in the defaultTrace of the Solution Manager Java:

    [Setup]Failed to configure Introscope HostAdapter Agent for <agent name>
    [EXCEPTION]
    java.lang.NullPointerException: while trying to invoke the method java.lang.String.length() of a null object loaded from local variable 'str'
    at java.lang.StringBuffer.<init>(StringBuffer.java:103)
    at com.sap.sup.admin.wily.hostagent.config.AgentConfigWriter.createFileDestinationForSapJ2EE(AgentConfigWriter.java:704)
    at com.sap.sup.admin.wily.hostagent.config.AgentConfigWriter.processComponentSAP_J2EE_ENGINE(AgentConfigWriter.java:484)
    at com.sap.sup.admin.wily.hostagent.config.AgentConfigWriter.prepareSapAgentConfiguration(AgentConfigWriter.java:245)
    at com.sap.sup.admin.wily.hostagent.Setup.prepareAgentConfiguration(Setup.java:273)
    at com.sap.sup.admin.wily.hostagent.Setup.executeSetup(Setup.java:98)
    at com.sap.sup.admin.wily.hostagent.Setup.executeSetup(Setup.java:62)
    at com.sap.sup.admin.setup.AppCfgTasks.configureEPAgent(AppCfgTasks.java:67)
    at com.sap.sup.admin.setup.ServerSetupStep.runExec(ServerSetupStep.java:243)
    at com.sap.sup.admin.setup.ServerSetupStep.execute(ServerSetupStep.java:302)
    at com.sap.smd.agent.plugins.remotesetup.SapInstance.setup(SapInstance.java:691)
    at com.sap.sup.admin.setup.SapCluster.setup(SapCluster.java:1899)
    at com.sap.sup.admin.setup.SapCluster.runClusterSetup(SapCluster.java:2141)
    at com.sap.sup.admin.setup.ws.SetupWrapper._rManagedSetup(SetupWrapper.java:561)
    at com.sap.sup.admin.setup.ws.SetupWrapper.managedSetup(SetupWrapper.java:351)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    (...more)
  2. In the LMDB, the data suppliers of that particular system are missing:
    missingj2eeinstancekernel.png

Read more...

Environment

  • Solution Manager 7.2
  • Java managed system

Product

SAP Solution Manager 7.2

Keywords

Introscope/Byte Code Adapters: Exception : while trying to invoke the method java.lang.String.length() of a null object loaded from local variable 'str' , KBA , SV-SMG-DIA , Diagnostics , Problem

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