Where is Main program when running a jar file?

[Siegfried Heintze]

I downloaded the source code from http://sourceforge.net/projects/jiu/ and found this little bat file called run-jiuawt.bat containing a single line:

java -mx300m -jar jiu.jar

I did a

/usr/bin/find . -name \*.java | xargs grep -in main 

and found a a dozen main programs!

Which main program am I running when I run run-jiuawt.bat?

Thanks,
Siegfried

[Stephan van Hulst]

Open MANIFEST.MF file in the META-INF folder in a text editor. The Main-class entry should let you know.

[Jesper de Jong]

As Stephan says, there is a META-INF/MANIFEST.MF file inside the JAR file that specifies what the main class is.

For more details, see: Packaging Programs in JAR Files in The Java Tutorials.