rror: A JNI error has occurred, please check your installation and try again

[lbdyck]

When I start gitblit I'm getting this error - any advice:

Using java version:

java version "1.8.0_241"
Java(TM) SE Runtime Environment (build 8.0.6.7 - pmz6480sr6fp7-20200312_01(SR6 FP7))
IBM J9 VM (build 2.9, JRE 1.8.0 z/OS s390x-64-Bit Compressed References 20200219_440062 (JIT enabled, AOT enabled)
OpenJ9 - 3088245
OMR - eb95a4d
IBM - 83517b6)
JCL - 20200310_01 based on Oracle jdk8u241-b07

Contents of gitblit.sh

#!/bin/bash
java -Dfile.encoding=UTF-8 -jar gitblit.jar baseFolder data

Probelm

/u/splbd/work/gitblit-1.9.1>sh gitblit.sh
Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main" java.lang.NoClassDefFoundError: org.kohsuke.args4j.CmdLineException
at java.lang.J9VMInternals.prepareClassImpl(Native Method)
at java.lang.J9VMInternals.prepare(J9VMInternals.java:304)
at java.lang.Class.getMethodHelper(Class.java:1247)
at java.lang.Class.getMethod(Class.java:1191)
at sun.launcher.LauncherHelper.validateMainClass(LauncherHelper.java:556)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:538)
Caused by: java.lang.ClassNotFoundException: org.kohsuke.args4j.CmdLineException
at java.net.URLClassLoader.findClass(URLClassLoader.java:610)
at java.lang.ClassLoader.loadClassHelper(ClassLoader.java:944)
at java.lang.ClassLoader.loadClass(ClassLoader.java:889)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:872)
... 6 more

[flaix]

You are running this on z/OS. I guess you may have followed Henri Kuiper's HowTo? Maybe you are using a different JVM than he did?

[lbdyck]

I followed Henri's instructions. I've tried Java 7, 7.1, and 8.0 - both 31 and 64-bit versions. I have sent Henri an e-mail :)

[TomaszSzt]

@lbdyck lbdyck

The java.lang.ClassNotFoundException: org.kohsuke.args4j.CmdLineException happens if You start it like You did. It seems, that jar file is missing to point at least that dependency. I can duplicate it on Windows with exactly that kind of obvious command.

The command from gitblit.sh / gitblit.cmd scripts works fine java -cp "gitblit.jar:ext/*" com.gitblit.GitBlitServer --baseFolder data

[HuangZhuo]

Make sure gitblit-1.9.1\ext\args4j-2.0.29.jar is exist