I have an issue with a VPS, centos, thats running WHM as the container. I need to run open-jdk to get jenkins ci going, but the issue is that oracle's java keeps popping up. From a server restart:
root@host [~]# java -version
java version "1.6.0_37"
Java(TM) SE Runtime Environment (build 1.6.0_37-b06)
Java HotSpot(TM) 64-Bit Server VM (build 20.12-b01, mixed mode)
and my system:
root@host [~]# cat /etc/*release*
cat: /etc/lsb-release.d: Is a directory
CentOS release 5.9 (Final)
My $PATH points to /usr/local/jdk/bin:/usr/kerberos/sbin:/us...
which is where oracle java is located. So my quick-fix solution is to add the openjdk to /etc/profile
and call source /etc/profile
at every restart. This is what I've added to /etc/profile
:
#as per: http://www.24k.com.sg/blog-29.html
JAVA_HOME=/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.19.x86_64
PATH=$PATH:$JAVA_HOME/bin
CLASSPATH=.:$JAVA_HOME/lib/tools.jar:$JAVA_HOME/lib/dt.jar
export PATH JAVA_HOME CLASSPATH
export PATH=${PATH/\/usr\/local\/jdk\/bin:}
#end as per
Now java -version
returns the openjdk, but javac -version
is not found!:
root@host [~]# java -version
java version "1.7.0_19"
OpenJDK Runtime Environment (rhel-2.3.9.1.el5_9-x86_64)
OpenJDK 64-Bit Server VM (build 23.7-b01, mixed mode)
root@host [~]# javac -version
-bash: javac: command not found
Also even though java -version
returns open jdk when I look at the csf access logs I can see that jenkins is still calling the oracle jdk.
root@host [~]# service jenkins reload
Shutting down Jenkins [ OK ]
Starting Jenkins [ OK ]
csf ldf log, notice that its still calling oracle java /usr/local/jdk1.6.0_37
:
May 17 07:32:30 host lfd[4392]: *User Processing* PID:4324 Kill:0 User:jenkins VM:802(MB) EXE:/usr/local/jdk1.6.0_37/bin/java CMD:/usr/local/jdk/bin/java -Dcom.sun.akuma.Daemon=daemonized -Djava.awt.headless=true -Djava.io.tmpdir=/var/lib/jenkins/tmp -DJENKINS_HOME=/var/lib/jenkins -jar /usr/lib/jenkins/jenkins.war --logfile=/var/log/jenkins/jenkins.log --webroot=/var/cache/jenkins/war --daemon --httpPort=8080 --ajp13Port=8009 --debug=5 --handlerCountMax=100 --handlerCountMaxIdle=20 --prefix=/jenkins --accessLoggerClassName=winstone.accesslog.SimpleAccessLogger --simpleAccessLogger.format=combined --simpleAccessLogger.file=/var/log/jenkins/access_log
Getting open-jdk working with jenkins is step one for getting this issue solved… https://serverfault.com/questions/507885/cant-install-jenkins-on-centos#comment571671_507885
any help would be appreciated 😉
Best Answer
I assume you have installed java-1.7.0-openjdk-devel. If you still can't don't have to javac in the path, then use update-alternatives to configure it:
In case of java7 link is missing, add it: