GalenMain : Unsupported major.minor version 51.0

[Elena Florko]

Hi guys,

I am trying to run Galen layout tests from Jenkins. And it fails with following exception:

+ galen test tests/dashboard.test.js --htmlreport ../../../../../galen_report/ --testngreport ../../../../../galen_report/testng/results.xml -Dgalen.log.level=1

Exception in thread "main" java.lang.UnsupportedClassVersionError: com/galenframework/GalenMain : Unsupported major.minor version 51.0

at java.lang.ClassLoader.defineClass1(Native Method)

at java.lang.ClassLoader.defineClass(ClassLoader.java:634)

at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)

at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)

at java.net.URLClassLoader.access$000(URLClassLoader.java:73)

at java.net.URLClassLoader$1.run(URLClassLoader.java:212)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:205)

at java.lang.ClassLoader.loadClass(ClassLoader.java:321)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)

at java.lang.ClassLoader.loadClass(ClassLoader.java:266)

Could not find the main class: com.galenframework.GalenMain. Program will exit.

I have googled it before writing here and the only solution I found is update Java. But Java version (Jenkins host) looks OK:

java version "1.7.0_55"

OpenJDK Runtime Environment (IcedTea 2.4.8) (suse-8.36.1-x86_64)

OpenJDK 64-Bit Server VM (build 24.55-b03, mixed mode)

I even tried to downgrade Galenframework to version 2.0:

Galen Framework

Version: 2.0.10

JavaScript executor: Rhino 1.7 release 5 2015 01 29

The same result.

Any suggestions?

Thanks in advance!

[Martin Reinhardt]

Galen Version 2 uses Java7+. So you need to have an Java 7 or greater runtime installed

[Elena Florko]

It is Java 7, isn't it?

[Martin Reinhardt]

sure, but it seems to not use the Java7 VM for your jenkins java. Are using maven or how did you run the Galen tests?

[Elena Florko]

I am simply execute shell script in Jenkins with command: galen test tests/dashboard.test.js

[Martin Reinhardt]

then just add a line before:

java -version

and post the output here

[Elena Florko]

Thanks! You were right! Jenkins internally uses older version of Java than Java installed by default on that server:

java version "1.6.0_27"
OpenJDK Runtime Environment (IcedTea6 1.12.5) (suse-36.2-x86_64)
OpenJDK 64-Bit Server VM (build 20.0-b12, mixed mode)

Can I specify Jenkins which version of Java to use while executing shell script?

[Elena Florko]

And it is very strange that in Jenkins Environment Variables:

JAVA_ROOT

/usr/lib64/jvm/java

And 

echo $JAVA_ROOT

/usr/lib64/jvm/java

So, they are the same! I am very confused now.

[Elena Florko]

I have found it, use Java 6 was set in Jenkins System Properties.

So, for struggling ones the correct answer is check your Java version everywhere!