Last Updated on
Do I need to install Java on my RHEL server in order for Ephesoft to run.
No. It can however be useful to install for external tools and in order to open the java ControlPanel in the Java JDK that is included with Ephesoft.
First you must check to see if you have OpenJDK installed. While this flavor of JDK will work with Linux, we have seen issues starting the java Control Panel if you have this installed rather than Oracle JDK. CentOS ships with OpenJDK.
First check your version of java. in a terminal window, type:
If OpenJDK is installed, you will see the following return for java -version:
[root@EphesoftServer ephesoft]# java -version
java version “1.7.0_65”
OpenJDK Runtime Environment (rhel-126.96.36.199.el6_5-x86_64 u65-b17)
OpenJDK 64-Bit Server VM (build 24.65-b04, mixed mode)
If you have OpenJDK, you must first uninstall OpenJDK before you can install Oracle JDK. To uninstall OpenJDK, type the following in a terminal window:
sudo yum remove java*
Install Oracle JDK on RHEL 6.5:
First go to the following website http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html
Accept license and download jdk-7u67-linux-x64.rpm which is the third down
type the following line by line pressing enter in between in a terminal window:
Sudo rpm –Uvh jdk-7u67-linux-x64.rpm
alternatives –install /usr/bin/java java /usr/java/latest/jre/bin/java 200000
alternatives –install /usr/bin/javaws javaws /usr/java/latest/jre/bin/javaws 200000
alternatives –install /usr/lib64/mozilla/plugins/libjavaplugin.so libjavaplugin.so.x86_64 /usr/java/latest/jre/lib/amd64/libnpjp2.so 200000
alternatives –install /usr/bin/javac javac /usr/java/latest/bin/javac 200000
alternatives –install /usr/bin/jar jar /usr/java/latest/bin/jar 200000
Test your install of Oracle Java:
In a terminal type the following: