Error connected mysql java connector to mariadb

[#1]

i am trying connected mysql java connector to my mariadb using this docs https://docs.cloudera.com/documentation/enterprise/5-16-x/topics/prepare_cm_database.html. I am getting this error messege

[root@cloudera java-1.6.0]# /usr/share/cmf/schema/scm_prepare_database.sh mysql scm scm my_password
JAVA_HOME=/usr/java/jdk1.6.0_31
Verifying that we can write to /etc/cloudera-scm-server
Creating SCM configuration file in /etc/cloudera-scm-server
Executing:  /usr/java/jdk1.6.0_31/bin/java -cp /usr/share/java/mysql-connector-java.jar:/usr/share/java/oracle-connector-java.jar:/usr/share/java/postgresql-connector-java.jar:/usr/share/cmf/schema/../lib/* com.cloudera.enterprise.dbutil.DbCommandExecutor /etc/cloudera-scm-server/db.properties com.cloudera.cmf.db.
Exception in thread "main" java.lang.UnsupportedClassVersionError: org/postgresql/util/PSQLException : 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)
Could not find the main class: com.cloudera.enterprise.dbutil.DbCommandExecutor.  Program will exit.
--> Error 1, giving up (use --force if you wish to ignore the error)

Check java version using "java --version" on terminal

[root@cloudera java-1.6.0]# java -version
openjdk version "1.8.0_222"
OpenJDK Runtime Environment (build 1.8.0_222-b10)
OpenJDK 64-Bit Server VM (build 25.222-b10, mixed mode)

[#2 · Accepted solution]

Solved,After Set $JAVA_HOME to OpenJDK1.8.0.222(i use open jdk)