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2549049 - Cannot find class: com/sap/engine/boot/Start - java.lang.ClassNotFoundException: com.sap.engine.boot.Start

Symptom

The Java server node startup fails due to error java.lang.NoClassDefFoundError: com/sap/engine/boot/Start
The following stack trace is logged in /usr/sap/<SID>/<inst_nr>/work/dev_server0 file:

F  [Thr 258] *** WARNING => SfCJavaVm::callStatic: Cannot find class: com/sap/engine/boot/Start [sfxxjvm.hpp  674]

F  [Thr 258] *** java.lang.NoClassDefFoundError: com/sap/engine/boot/Start

F  [Thr 258] *** Caused by: java.lang.ClassNotFoundException: com.sap.engine.boot.Start

F  [Thr 258] ***         at java.net.URLClassLoader$1.run(URLClassLoader.java:281)

F  [Thr 258] ***         at java.security.AccessController.doPrivileged(Native Method)

F  [Thr 258] ***         at java.net.URLClassLoader.findClass(URLClassLoader.java:269)

F  [Thr 258] ***         at java.lang.ClassLoader.loadClass(ClassLoader.java:376)

F  [Thr 258] ***         at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:344)

F  [Thr 258] ***         at java.lang.ClassLoader.loadClass(ClassLoader.java:317)

F  [Thr 258] *** ERROR => SfEStartupError: SfCSapVm::callMainMethod: : Cannot call method: static void com/sap/engine/boot/Start.main(String[])  [sfxxjvm.hpp  1409]

F  [Thr 258] *** ERROR => Java thread failed: SfEStartupError: : Cannot call method: static void com/sap/engine/boot/Start.main(String[]) [sfxxjvm.hpp  1476]

The com.sap.engine.boot.Start class does exist in file /usr/sap/<SID>/<inst_nr>/j2ee/cluster/bin/boot/sap.com~tc~bl~jkernel_boot~impl.jar.


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Environment

SAP NetWeaver 7.1
SAP NetWeaver 7.2
SAP NetWeaver 7.3
SAP NetWeaver 7.4
SAP NetWeaver 7.5

Product

SAP NetWeaver 7.1 ; SAP NetWeaver 7.2 ; SAP NetWeaver 7.3 ; SAP NetWeaver 7.4 ; SAP NetWeaver 7.5

Keywords

ClassNotFoundException, com.sap.engine.boot.Start, NoClassDefFoundError, com/sap/engine/boot/Start , KBA , BC-JAS-SF , Startup Framework , Problem

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