How to resolve a NullPointerException

[tharanga wijethilake <th...@ee.oulu.fi>]

Hi all,
I am tring to run this Ant file using a java program. 
When I run this using "Ant run" option provided in eclipse it runs with out any trouble. 
<project name="bundleRunner" default="submit_a_bundle" basedir=".">

<property name="ant.classpath" location="lib"/>

<taskdef name="smfbd.submitJarBundle" classname="com.ibm.ive.eccomm.bde.ui.tooling.ant.SubmitJarBundle"> 

<classpath>

<fileset dir="lib">

<include name="${ant.classpath}/smfbdTasks.jar"/>

<include name="${ant.classpath}/bde.jar"/>

</fileset> 

</classpath>

</taskdef>

<target name="submit_a_bundle"> 

<smfbd.submitJarBundle bundlepath="/HelloWorld" replace="true">

<bundleserver host="localhost" user="Admin" password="Admin" port="8080" webapp="/smf"/>

</smfbd.submitJarBundle>

</target>

</project>


but when I try to run prgrammtically it gives a null pointer. Please Could someone tell me how am i supose to find from where the exception throws.
submit_a_bundle:

BUILD FAILED

C:\Documents and Settings\tharanga\My Documents\IBM\wssitedev51\workspace\AntRunner\build.xml:12: java.lang.NullPointerException

Total time: 2 seconds


 It is line 12 but is it the "bundlepath" or is it because of the related class file for smfbd task is missing. Thank you very much.



Tharanga Wijethilake

Re: How to resolve a NullPointerException

[Antoine Levy-Lambert <an...@gmx.de>]

Hello,

how do you run this programatically ?

one common source of null pointer exceptions in Ant API use is to forget to set a project reference on task objects or datatypes. The null pointer exception happens then as soon as the task or the datatype tries to log something.

if you have a NPE when using command line Ant, run 

ant -verbose

(-verbose is a command line argument)

this will give you a stack trace.

Regards,

Antoine
-------- Original-Nachricht --------
Datum: Mon, 16 Oct 2006 17:41:07 +0300
Von: "tharanga wijethilake" <th...@ee.oulu.fi>
An: "Ant Users List" <us...@ant.apache.org>
Betreff: How to resolve a NullPointerException

> Hi all,
> I am tring to run this Ant file using a java program. 
> When I run this using "Ant run" option provided in eclipse it runs with
> out any trouble. 
> <project name="bundleRunner" default="submit_a_bundle" basedir=".">
> 
> <property name="ant.classpath" location="lib"/>
> 
> <taskdef name="smfbd.submitJarBundle"
> classname="com.ibm.ive.eccomm.bde.ui.tooling.ant.SubmitJarBundle"> 
> 
> <classpath>
> 
> <fileset dir="lib">
> 
> <include name="${ant.classpath}/smfbdTasks.jar"/>
> 
> <include name="${ant.classpath}/bde.jar"/>
> 
> </fileset> 
> 
> </classpath>
> 
> </taskdef>
> 
> <target name="submit_a_bundle"> 
> 
> <smfbd.submitJarBundle bundlepath="/HelloWorld" replace="true">
> 
> <bundleserver host="localhost" user="Admin" password="Admin" port="8080"
> webapp="/smf"/>
> 
> </smfbd.submitJarBundle>
> 
> </target>
> 
> </project>
> 
> 
> but when I try to run prgrammtically it gives a null pointer. Please Could
> someone tell me how am i supose to find from where the exception throws.
> submit_a_bundle:
> 
> BUILD FAILED
> 
> C:\Documents and Settings\tharanga\My
> Documents\IBM\wssitedev51\workspace\AntRunner\build.xml:12: java.lang.NullPointerException
> 
> Total time: 2 seconds
> 
> 
>  It is line 12 but is it the "bundlepath" or is it because of the related
> class file for smfbd task is missing. Thank you very much.
> 
> 
> 

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