{"id":1986,"date":"2017-12-07T07:18:14","date_gmt":"2017-12-07T07:18:14","guid":{"rendered":"http:\/\/www.scmgalaxy.com\/tutorials\/?p=1986"},"modified":"2021-11-18T07:07:24","modified_gmt":"2021-11-18T07:07:24","slug":"can-we-change-setting-in-jenkins-as-it-picks-desire-version-of-java","status":"publish","type":"post","link":"https:\/\/www.devopsschool.com\/blog\/can-we-change-setting-in-jenkins-as-it-picks-desire-version-of-java\/","title":{"rendered":"Can We Change Setting In Jenkins As It Picks Desire Version Of Java."},"content":{"rendered":"

Namit created the topic: Can we change setting in Jenkins as it picks desire version of Java.<\/strong>
\nIn my Linux server i do have two version of Java (Java 1.6 and Java 1.8), few applications which are running on this server is using Java 1.6, so i cann’t change this setting but i want when i start jenkins service it should pick java 1.8 instead of java 1.6 as for jenkins Java 7 or more is require. Is there any way to fix this problem.<\/p>\n

[root@rpc1372 run]# ls -l \/usr\/bin\/java
\nlrwxrwxrwx 1 root root 30 Jun 15 2014 \/usr\/bin\/java -> \/usr\/java\/jdk1.6.0_19\/bin\/java<\/p>\n

[root@rpc1372 run]# java -version
\njava version “1.6.0_19”
\nJava(TM) SE Runtime Environment (build 1.6.0_19-b04)
\nJava HotSpot(TM) Client VM (build 16.2-b04, mixed mode, sharing)<\/p>\n

rajeshkumar replied the topic: Can we change setting in Jenkins as it picks desire version of Java.<\/strong>
\nThere are basically 2 way –
\nMethod 1: Modify the “jenkins” file under \/etc\/init.d<\/p>\n

[root@chef-server init.d]# pwd
\n\/etc\/init.d
\n[root@chef-server init.d]# more jenkins | grep -i java
\n# Search usable Java. We do this because various reports indicated
\n# that \/usr\/bin\/java may not always point to Java >= 1.6
\n\/etc\/alternatives\/java
\n\/usr\/lib\/jvm\/java-1.6.0\/bin\/java
\n\/usr\/lib\/jvm\/jre-1.6.0\/bin\/java
\n\/usr\/lib\/jvm\/java-1.7.0\/bin\/java
\n\/usr\/lib\/jvm\/jre-1.7.0\/bin\/java
\n\/usr\/lib\/jvm\/java-1.8.0\/bin\/java
\n\/usr\/lib\/jvm\/jre-1.8.0\/bin\/java
\n\/usr\/bin\/java
\n[ -x \"$JENKINS_JAVA_CMD\" ] && break
\nJENKINS_JAVA_CMD=\"$candidate\"
\nJAVA_CMD=\"$JENKINS_JAVA_CMD $JENKINS_JAVA_OPTIONS -DJENKINS_HOME=$JENKINS_HOME -jar $JENKINS_WAR\"
\ndaemon --user \"$JENKINS_USER\" --pidfile \"$JENKINS_PID_FILE\" $JAVA_CMD $PARAMS > \/dev\/null<\/code><\/p>\n

Method 2: Start jenkins using the java which you want manually<\/p>\n

. Follow this article
\nwiki.jenkins-ci.org\/display\/JENKINS\/Star…nd+Accessing+Jenkins<\/a>
\nRegards,
\nRajesh Kumar
\nTwitt me @ twitter.com\/RajeshKumarIn<\/a><\/p>\n\n