Java Service Wrapper Executable Runnable Jar

Question

WrapperAppJar I am wrapping an executable runnable jar file as a window service. Based upon the tutorial on Tanuki software site I export my app from eclipse as an executable ja

Answer 1

unhillbilly has a good point. But actually it's not the real reason for the error you are seeing. Basically the manifest file in your jar file appears incorrect.

When you created the jar file, you were probably exporting your project from eclipse as runnable jar and selected as library handling to package the required jar files into the generated jar...

So by doing this Eclipse is using the class JarRsrcLoader.

This class is in fact the main class of your executable jar and not as you might thought your main class.

JarRsrcLoader requires 2 parameters being set in the manifest file: Rsrc-Main-Class and Rsrc-Class-Path.

Rsrc-Main-Class is the class name of your actual main class.

Rsrc-Class-Path is the class path (with all included jar files in the jar file) to launch your application.

Your manifest file appears to miss those 2 properties.

So you can resolve this by changing the way how you are exporting the jar file, for instance use "extract required libraries in jar". Another option would be to add the 2 missing properties into your META-INF/manifest.mf file.