how to deploy jenkins on the jetty correctly?

Question

I'm trying to deploy jenkins on the jetty application server as follows:

Unpack the distribution

[~]$ unzip jetty-distribution-9.3.2.v20150730
[~]$ cd jetty-distribution-9.3.2.v20150730

Copy your war into place

[jetty-distribution-9.3.2.v20150730]$ cp ~/Projects/mywebapp.war webapps/

Run Jetty

[jetty-distribution-9.3.2.v20150730]$ java -jar start.jar

My version of java is:

$ java -version
java version "1.7.0_80"
Java(TM) SE Runtime Environment (build 1.7.0_80-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode)

I am getting the following message:

Exception in thread "main" java.lang.UnsupportedClassVersionError: org/eclipse/jetty/start/Main : Unsupported major.minor version 52.0
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(Unknown Source)
    at java.security.SecureClassLoader.defineClass(Unknown Source)
    at java.net.URLClassLoader.defineClass(Unknown Source)
    at java.net.URLClassLoader.access$100(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)

Which version of the jetty I use with version 7 of java?

Joakim Erdfelt Joakim Erdfelt · Accepted Answer · 2015-08-27T16:09:22

Java 7 is now EOL (End of Life) with Oracle.

Would highly recommend you use Java 8 from here on out.

Jenkins runs fine on Java 8 and Jetty 9.3.2 (the Jetty project themselves do this).

how to deploy jenkins on the jetty correctly?

2 Answers