I'm trying to call a class (main method) from command line (Windows) with Java.
The class imports other classes (other jars).
I always get "class not found exception" from a class that my main program imports.
Here's what I tried:
Add a CLASSPATH env. var with the path where the referenced lib resides (not working)
I tried with all these different parameters when calling "java -jar myjar.jar
" from command line : "-classpath lib/
", "-classpath ./lib/
", "-classpath lib
", "-cp lib/*
", "-cp lib/\*
", "-classpath lib/referenced-class.jar
", "-classpath ./lib/referenced-class.jar
" (lib is where the referenced jar resides)
I tried packaging all the referenced jar inside my jar where my main class resides...
And with all that, I also tried to specify the classes inside the Manifest file with:
Class-path referenced-jar.jar
and I also tried Class-path lib/referenced-jar.jar
This question is related to
java
command-line
jar
classpath
try
java -cp "your_jar.jar:lib/referenced_jar.jar" com.your.main.Main
If you are on windows, you should use ;
instead of :
you can try to export as "Runnable jar" in eclipse. I have also problems, when i export as "jar", but i have never problems when i export as "Runnable jar".
If you're running a jar file with java -jar
, the -classpath
argument is ignored. You need to set the classpath in the manifest file of your jar, like so:
Class-Path: jar1-name jar2-name directory-name/jar3-name
See the Java tutorials: Adding Classes to the JAR File's Classpath.
Edit: I see you already tried setting the class path in the manifest, but are you sure you used the correct syntax? If you skip the ':
' after "Class-Path
" like you showed, it would not work.
Source: Stackoverflow.com