Check out the error below. If you are getting a similar error while running a Java jar file on hadoop sandbox, the probable cause is that you compiled your code with a version of Java that's newer than the one running in the hadoop machine. So, recompile your code with a compatible jdk version and try again.
Comment below if this fixed your problem. Also let me know if it didn't or if you found a different solution. Thanks.
Comment below if this fixed your problem. Also let me know if it didn't or if you found a different solution. Thanks.
Failing Oozie Launcher, Main class [WordCount], exception invoking main(), WordCount : Unsupported major.minor version 51.0 java.lang.UnsupportedClassVersionError: WordCount : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631) at java.lang.ClassLoader.defineClass(ClassLoader.java:615) 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$1.run(URLClassLoader.java:197) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:247) at org.apache.hadoop.conf.Configuration.getClassByNameOrNull(Configuration.java:1659) at org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:1624) at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:1718) at org.apache.oozie.action.hadoop.LauncherMapper.map(LauncherMapper.java:224) at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54) at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:429) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341) at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:162) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:396) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491) at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:157) Oozie Launcher failed, finishing Hadoop job gracefully
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