Manage Jenkins -> System Information should include the path to the Java Install being used. It is probably listed in the java.home environmental variable.
From: Jeff Dege <jd...@korterra.com<mailto:jd...@korterra.com>> Reply-To: "jenkinsci-users@googlegroups.com<mailto:jenkinsci-users@googlegroups.com>" <jenkinsci-users@googlegroups.com<mailto:jenkinsci-users@googlegroups.com>> Date: Friday, May 1, 2015 at 10:31 AM To: "jenkinsci-users@googlegroups.com<mailto:jenkinsci-users@googlegroups.com>" <jenkinsci-users@googlegroups.com<mailto:jenkinsci-users@googlegroups.com>> Subject: Where is the JRE? We have Jenkins 1.561 running on a 64-bit Windows 7 Professional SP1 box. This is our primary build machine, it runs Jenkins as well as most of our actual builds. (Our load isn't sufficient to require a more complicated multi-server structure). Now my understanding is that Jenkins is written in Java, and relies on the JRE. We've recently started Android development, which means I need to install Android Studio/gradle/et al. on the build machine. Which is also the machine on which Jenkins runs. Android Studio is also written in Java, and needs the JDK installed. Now it's perfectly possible to have two different versions of Java installed on the same machine, without conflict. But it's also possible for a new installation to mess up programs that rely on the old, without realizing it. So I'm trying to track down just what are the Java dependencies within our existing Jenkins installation. And I'm not having much luck. I don't see any version of Java in the Windows Control Panel's list of installed programs ("Programs and Features"). Browsing around the web, I've seen references to a jenkins.xml file, that was supposed to be sitting in $JENKINS_HOME, that had a default setting pointing to $JENKINS_HOME/jre. But I don't see any such file in $JENKINS_HOME, and I don't see a jre directory, in $JENKINS_HOME or anywhere else. When I go into Manage Jenkins => Configure System, I see a section "JDK Installations", but there are none configured. Are these configuration settings and defaults different, on Windows, have they moved? Where is the JRE that my install of Jenkins is depending on? And where is the configuration setting that creates that dependency? -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to jenkinsci-users+unsubscr...@googlegroups.com<mailto:jenkinsci-users+unsubscr...@googlegroups.com>. To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-users/118d4a08-0e6d-4c56-98a1-0a513420f1f1%40googlegroups.com<https://groups.google.com/d/msgid/jenkinsci-users/118d4a08-0e6d-4c56-98a1-0a513420f1f1%40googlegroups.com?utm_medium=email&utm_source=footer>. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to jenkinsci-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-users/D16907B6.138AE%25thomas.suckow%40pnnl.gov. For more options, visit https://groups.google.com/d/optout.
