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Error "Exception in thread "Main Thread" java.lang.UnsupportedClassVersionError: com/wily/field/dpmon/DataPowerMonitor : unsupported classversion 51.0"

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Article ID: 5131

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Updated On:

Products

CA Application Performance Management Agent (APM / Wily / Introscope) INTROSCOPE

Issue/Introduction

Starting the Datapower Extension is not successful and results in this error:

[[email protected] /webapps/wily/DataPower3.2/bin]$ ./DatapowerMonitor
Exception in thread "Main Thread" java.lang.UnsupportedClassVersionError: com/wily/field/dpmon/DataPowerMonitor : unsupported classversion 51.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)
at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: com.wily.field.dpmon.DataPowerMonitor. Program will exit.

Environment

This was during testing in a 10.2 APM Environment

Cause

 The customer was running JVM 1.6. However, the Datapower 3.2 Version needs to be run on JVM 1.7 or higher.

Resolution

Upgrade the JVM to be release 1.7 or higher

Additional Information

Download the Datapower Extension 3.2