Create a jar file from within

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Grzesiek - 14 Aug 2007 15:17 GMT

Hi,

I have 2 files in my project : App.java and Foo.java. App is the main
class.

In App.java i have a line:

Runtime.getRuntime().exec("jar cfe Foo.jar Foo Foo.class");

Then, I created a jar file App.jar

Running App.jar creates Foo.jar. But Foo.jar contains only manifest
file and no class. What is wrong?

Thnax in advance :-)

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Thomas Fritsch - 14 Aug 2007 15:43 GMT

Grzesiek:

> I have 2 files in my project : App.java and Foo.java. App is the main
> class.
[quoted text clipped - 7 lines]
> Running App.jar creates Foo.jar. But Foo.jar contains only manifest
> file and no class. What is wrong?

Are you running that on Java1.6 and Solaris?
Earlier Java-versions or other platforms don't support the "e" flag.

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Thomas

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Grzesiek - 14 Aug 2007 15:59 GMT

> Grzesiek:> I have 2 files in my project : App.java and Foo.java. App is the main
> > class.
[quoted text clipped - 13 lines]
> --
> Thomas

Hi Thomas,
I use java1.6 and Windows. But i think it is not the case here. The
project is created in NetBeans 5.5.1 and App.jar is also created in
NetBeans. I think that Foo.class created in NetBeans as a part of App
Project is not the same as Foo.class created by "javac Foo.java"
although Foo.java is the same. I doubt wheather Foo.class created in
Netbeans can be used like this:

jar cfe Foo.jar Foo Foo.class

i.e without App.class

Thanx anyway :-)

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Create a jar file from within

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