IBM Support

Unsupported major.minor version 51.0 error is given when run Oozie job action

Troubleshooting


Problem

The Oozie service fails to execute the workflow when JAVA_HOME is not defined and  a JDK version under 1.7 is installed.

Symptom

An Oozie workflow execution failure occurs due to the following error:

Exception in thread "main" java.lang.UnsupportedClassVersionError: org/apache/hadoop/security/authentication/client/AuthenticationException : Unsupported major.minor version 51.0
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:643)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)
        at java.net.URLClassLoader.access$000(URLClassLoader.java:73)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:212)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:323)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
        at org.apache.oozie.cli.OozieCLI.createXOozieClient(OozieCLI.java:911)
        at org.apache.oozie.cli.OozieCLI.jobCommand(OozieCLI.java:954)
        at org.apache.oozie.cli.OozieCLI.processCommand(OozieCLI.java:673)
        at org.apache.oozie.cli.OozieCLI.run(OozieCLI.java:626)
        at org.apache.oozie.cli.OozieCLI.main(OozieCLI.java:225)

Cause

If no JAVA_HOME is defined, Bigtop auto detects and selects a low level JDK version, such as a JDK version that is under 1.7. Then, the described error message occurs.

Resolving The Problem

1. Set JAVA_HOME in /etc/profile for a JDK version at 1.7 or above when you receive the error message that is described.
2. Source /etc/profile.
3. Run the Oozie workflow again.

[{"Product":{"code":"SSCRJT","label":"IBM Db2 Big SQL"},"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Component":"Not Applicable","Platform":[{"code":"PF016","label":"Linux"}],"Version":"4.1.0","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
08 April 2021

UID

swg21967808