Standalone Jar Execution From Batch File

Question

Below is my Jar structure. This is standalone jar.

MyApp.jar
--> .settings
--> com
--> lib
--> META-INF
--> resources
--> .classpath
--> .project

I am attempting to execute this jar file from bat file.

I have mentioned classpath and main class in MANIFEST.MF file under META-INF folder from MyApp.jar

Manifest-Version: 1.0
Class-Path: ./lib/jar1.jar ./lib/jar2.jar ./lib/jar3.jar
Main-Class: com.bank.Main

Inside my bat file: java -jar D:\app\MyApp.jar

Is it correct way to lib folder inside jar?

But still i am facing ClassNotFoundException.

Exception in thread "main" java.lang.NoClassDefFoundError: javax/jms/JMSException

Anything i missed out Please advise me.

Exception in thread "main" java.lang.NoClassDefFoundError: javax/jms/JMSException — deadend
No.. This is my MANIFEST.MF.. Manifest-Version: 1.0 Class-Path: ./lib/javax.jms.jar Main-Class: com.bank.Main — deadend
When you start it from cmd, (without bat) does the same error occur? — Fildor

Unknown Unknown · Accepted Answer · 2017-01-19T10:28:14

Put the lib folder outside of your current main jar [MyApp.jar] directory and execute it.

You have packaged the jar dependency inside your main jar. The intention of Class-Path is to add an external jar to the classpath, with the path relative to the location of the main jar.

Packaging a jar within a jar is not supported by standard Java classloaders. If you want, you can explode the inner jar into the main jar, though. Maven can do this for you.

Standalone Jar Execution From Batch File

2 Answers