How to change the JDK for a Jenkins job

Question

I have imported the jenkins jobs from existing jenkins server from another machine  But the problem is  it has the JDK referenced as per the old machines and I want to change it to use the JDK configured in my new jenkins  But I am unable to find any way of doing this  So  please if you have come across this situation and found a way then please help me too   Thanks

User · Answer

For existing jobs you re editing  the JDK drop-down choice may not be available if you ve just added a single JDK config in the  Configure System  Jenkins settings   However  it is available for new jobs   Surprisingly  if you add a second JDK config  it becomes available in an existing job too   This looks to me like a bug  tested in Jenkins ver  1 629    See a similar issue raised here  JDK selection is hidden even when a JDK is configured

User · Answer

Here is where you should configure in your job   In JDK there is the combobox with the different JDK configured in your Jenkins    Here is where you should configure in the config of your Jenkins

User · Answer

If you have a multi-config  matrix  job  you do not have a JDK dropdown but need to configure the jdk as build axis

User · Answer

For those who couldn t find this option  Install JDK Parameter Plugin

User · Answer

Here is my experience with Jenkins version 1 636  as long as I have only one  Install automatically  JDK configured in Jenkins JDK section  I don t see  JDK  dropdown in Job  Configure section   but as soon as I added second JDK in Jenkins config  JDK dropdown appeared in Job  Configure section with 3 options   System   JDK1  JDK2

User · Answer

Using latest Jenkins version 2 7 4 which is also having a bug for existing jobs    Add new JDKs through Manage Jenkins -  Global Tool Configuration -  JDK    If you edit current job then JDK dropdown is not showing  bug  Hit http   your jenkin server 8080 restart and restart the server Re-configure job   Now  you should see JDK dropdown in  job name  -  Configure in Jenkins web ui  It will list all JDKs available in Jenkins configuration

User · Answer

Be careful with jobs   1 - if you have a job based in maven  Jenkins takes your default java configuration and you decide the compilation level in your POM XML   2 - if you have a free style job  in the  the configuration option of the job you can select the JDK that you want to use   Hope this help

User · Answer

There is a JDK dropdown in  job name  -  Configure in Jenkins web ui  It will list all JDKs available in Jenkins configuration

[java] How to change the JDK for a Jenkins job?

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