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From astyrrian17 <jason.pall...@lmco.com>
Subject How do I reference external JARs when running a Java program from Ant?
Date Tue, 20 Jan 2009 21:26:03 GMT

I have a java program that uses external jars (Apache POI files). I used
eclipse to code this small program and it works just fine. This program
referenced those external jars succesfully.

Now I want to use ant to run this program and provide inputs. I intend to
compile, create the jar from ant, and then run it.

The program compiles, but I keep getting this following error:

     [java] Exception in thread "main" java.lang.NoClassDefFoundError:
org/apach
e/poi/hssf/usermodel/HSSFWorkbook

I basically took the basic example code from here and tweaked it a bit:
http://ant.apache.org/manual/tutorial-HelloWorldWithAnt.html#enhance

I tried using this, nested under both <javac> and <java>:

<classpath>
   <pathelement location="C:/poi-3.2-FINAL-20081019.jar"/>
   <pathelement location="C:/poi-contrib-3.2-FINAL-20081019.jar"/>
   <pathelement location="C:/poi-scratchpad-3.2-FINAL-20081019.jar"/>
</classpath>

I also tried putting this under the <manifest> tag of <jar>:

<attribute name="Class-Path" value="C:/poi-3.2-FINAL-20081019.jar
C:/poi-contrib-3.2-FINAL-20081019.jar
C:/poi-scratchpad-3.2-FINAL-20081019.jar"/>

Am I doing everything right? Should this work? How can I get those files
included?

Thanks.
-- 
View this message in context: http://www.nabble.com/How-do-I-reference-external-JARs-when-running-a-Java-program-from-Ant--tp21572014p21572014.html
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