Re: executing my application outside the IDE does not work

From:

Lew <lew@lewscanon.com>

Newsgroups:

comp.lang.java.programmer

Date:

Wed, 26 Mar 2008 08:54:06 -0400

Message-ID:

<DcidnWAJpcfz2nfanZ2dnUVZ_v-hnZ2d@comcast.com>

marcussilfver@gmail.com wrote:

I have application code that runs fine when executed from inside
Eclipse IDE.
However when I make a jar "myApp.jar" out of it then the jar does not
run. If I however remove a certain object of a certain class C from my
code and generates a new "myApp.jar", then the new jar runs fine
aswell.

The class C which I remove from the code to make it work is located in
an external jar "x.jar".
Inside the IDE, I have included x.jar in the buildpath of the project.

My thought is that the class C is not found in runtime when executing
"myApp.jar".

Where should I put the x.jar for the JRE to find when executing
myApp.jar?

Donkey Hot wrote:

To the classpath

java -cp .;/path/to/the/x.jar;/possible/other/jars -jar myApp.jar

There's no point in putting a -cp option there if you use -jar. The classpath
will be completely ignored due to the -jar option.

<http://java.sun.com/javase/6/docs/technotes/tools/solaris/java.html>

When you use this option [-jar], the JAR file is the source of all user classes,
and other user class path settings are ignored.

The answer is the Class-Path manifest attribute
<http://java.sun.com/j2se/1.5.0/docs/guide/jar/jar.html#Manifest%20Specification>

Place the library JAR in the same directory as the application JAR, or a
subdirectory, and reference it from the manifest of the application JAR.

--
Lew