milleruntime opened a new issue #342:
URL: https://github.com/apache/fluo-muchos/issues/342
I was trying to setup a 2.1 cluster with Java 11 and Accumulo will fail to
initialize due to the wrong java version. The cluster is still running Java 8
even with Java 11 configured in mucos.props.
```
# The package to use for java 11
java_package=java-11-openjdk-devel
```
```
RUNNING HANDLER [initialize accumulo]
*****************************************************************************************************************************************************************************
Monday 04 May 2020 18:29:21 +0000 (0:00:02.318) 0:03:50.878
************
fatal: [leader1]: FAILED! => {"changed": true
"cmd": ["/home/centos/install/accumulo-2.1.0-SNAPSHOT/bin/accumulo"
"init"
"--clear-instance-name"
"--instance-name"
"muchos"
"--password"
"secret"]
"delta": "0:00:00.114641"
"end": "2020-05-04 18:29:22.102107"
"msg": "non-zero return code"
"rc": 1
"start": "2020-05-04 18:29:21.987466"
"stderr": "Error: A JNI error has occurred
please check your installation and try again\nException in thread \"main\"
java.lang.UnsupportedClassVersionError: org/apache/accumulo/start/Main has been
compiled by a more recent version of the Java Runtime (class file version 55.0)
this version of the Java Runtime only recognizes class file versions up to
52.0\n\tat java.lang.ClassLoader.defineClass1(Native Method)\n\tat
java.lang.ClassLoader.defineClass(ClassLoader.java:756)\n\tat
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)\n\tat
java.net.URLClassLoader.defineClass(URLClassLoader.java:468)\n\tat
java.net.URLClassLoader.access$100(URLClassLoader.java:74)\n\tat
java.net.URLClassLoader$1.run(URLClassLoader.java:369)\n\tat
java.net.URLClassLoader$1.run(URLClassLoader.java:363)\n\tat
java.security.AccessController.doPrivileged(Native Method)\n\tat
java.net.URLClassLoader.findClass(URLClassLoader.java:362)\n\tat
java.lang.ClassLoader.loadClass(ClassLoader.java:418)\n\tat
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)\n\tat
java.lang.ClassLoader.loadClass(ClassLoader.java:351)\n\tat
sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:495)"
"stderr_lines": ["Error: A JNI error has occurred
please check your installation and try again"
"Exception in thread \"main\" java.lang.UnsupportedClassVersionError:
org/apache/accumulo/start/Main has been compiled by a more recent version of
the Java Runtime (class file version 55.0)
this version of the Java Runtime only recognizes class file versions up to
52.0"
"\tat java.lang.ClassLoader.defineClass1(Native Method)"
"\tat java.lang.ClassLoader.defineClass(ClassLoader.java:756)"
"\tat
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)"
"\tat java.net.URLClassLoader.defineClass(URLClassLoader.java:468)"
"\tat java.net.URLClassLoader.access$100(URLClassLoader.java:74)"
"\tat java.net.URLClassLoader$1.run(URLClassLoader.java:369)"
"\tat java.net.URLClassLoader$1.run(URLClassLoader.java:363)"
"\tat java.security.AccessController.doPrivileged(Native Method)"
"\tat java.net.URLClassLoader.findClass(URLClassLoader.java:362)"
"\tat java.lang.ClassLoader.loadClass(ClassLoader.java:418)"
"\tat sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)"
"\tat java.lang.ClassLoader.loadClass(ClassLoader.java:351)"
"\tat
sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:495)"]
"stdout": ""
"stdout_lines": []}
```
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