Could not find or load main class - Cannot find jar in folder

Question

Files:

/jars/deploy/lib/myStuff-abcdef.jar
/jars/deploy/lib/helloWorld.jar
/jars/deploy/lib/jobStarter.jar
...

Inside /jars/deploy/lib/jobStarter.jar, is test.test.Main.

test.test.Main.java

public static void main(String[] args){
    System.out.println("hello world!");
    //do other stuff
}

With the command java -Dabcdef test.test.Main.class I get the error

Error: Could not find or load main class test.test.Main.class

How do I fix this?