SAP Knowledge Base Article - Preview

1781072 - ClassLoader$JavaLangClassLoaderAccessImpl error leads to server crash


After a SAP JVM switch, the SAP Application Server JAVA startup fails due to wrong Virtual Machine (VM) being used and error similar to the below is logged in the trace files (default trace file, std_server<x> and dev_server<x>):
MtxInit: Error occurred during initialization of VM java.lang.NoClassDefFoundError: java/lang/ClassLoader$JavaLangClassLoaderAccessImpl Exception in thread "main" java.lang.NoClassDefFoundError:com/sap/engine/offline/OfflineToolStart



  • Release Independent
  • SAP NetWeaver


SAP NetWeaver all versions ; SAP Process Integration all versions ; SAP Solution Manager all versions


jstartup/vm/home, PAM, java.lang.NoClassDefFoundError, SAPJVM, Product Availability Matrix, SAPJVM, SAPJVM_VERSION, vmprop,, 1611326, jstartup/vm/home, 1019559, 718901,  741289 , KBA , BC-JAS-SF , Startup Framework , BC-JAS-COR , Enterprise Runtime, Core J2EE Framework , Problem

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