I'm trying to create an executable jar from the command line. The main class in the JAR has dependencies that i have packaged into another plain JAR file.
I want to package the dependency JAR together with the executable JAR in order to have a single JAR file to ship.
What i have tried so far is the following:
The dependency Hello.class file has the mock code:
public class Hello {
public String getHello() {
return "Well hello there!!";
}
}
I have packaged class file into hello.jar using:
jar cvfM hello.jar Hello.class
The hello.jar content is now:
hello.jar -+- Hello.class
Now i have the main class with the mock code:
public class Main {
public static void main(String[] args) {
System.out.println(new Hello().getHello());
}
}
I then create a manifest file manifest.txt with the following content:
Main-Class: Main
Class-Path: hello.jar
I now create the executable JAR using:
jar cvfm main.jar manifest.txt Main.class hello.jar
The main.jar content is now:
main.jar -+- Main.class
|
+- hello.jar
|
+- META-INF -+- MANIFEST.MF
Running the executable JAR using:
java -jar main.jar
I get a class loader error for the Hello class dependency. I understand that this is because the class loader looks for hello.jar in the same path as main.jar. So when i put a copy of hello.jar alongside main.jar i am able to run it.
What do i need to do in order to be able to run main.jar with hello.jar inside of it?
I know that you will ask: "why is he trying to do it this way?". I know that ppl mostly use Eclipse, Ant, Maven or other tools to do this. But please just humor me :)
