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From "David Wood" <>
Subject RE: java exception when task executed with ant but not manually
Date Wed, 16 May 2007 02:34:15 GMT
Hi Martin,

I've actually made a few changes to the code and was getting new exceptions.
I was testing these changes with ant, and believe I have fixed them in the
code as the app works fine when executed from the command line but ant is
still producing run time errors.

Even though, I added in your changes and it does not seem to have made a
difference, the exceptions are still the same.

     [java] getting frontpage
     [java] 1 [main] ERROR client.Call  - Exception:
     [java] org.xml.sax.SAXException: Invalid element in - ID
     [java]     at
     [java]     at

I think that there is something wrong with how the ant VM is handling the
registering of the bean serialization and deserialization.  When I make
changes to the Bean file, reload the web service, the exceptions from ant
remain the same.


-----Original Message-----
From: Martin Gainty [] 
Sent: Wednesday, 16 May 2007 12:00 PM
To: Ant Users List
Subject: Re: java exception when task executed with ant but not manually

Dave..what happens when you specify the dir, fork, failonerror and boost the

memory used to 128MB?
   <java classname="RunApp"
 <pathelement path="${env.CLASSPATH}:${build}"/>
 <fileset dir="${build}">
   <include name="RunApp"/>

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----- Original Message ----- 
From: "David Wood" <>
To: <>
Sent: Tuesday, May 15, 2007 9:26 PM
Subject: java exception when task executed with ant but not manually

> Hello users,
> I am getting different results when executing a java program with ant than
> when I execute it manually.
> When ant is used the program throws a null pointer exception eg:
> [d.wood@home]$ ant testApp
> Buildfile: build.xml
> init:
> compile:
> testApp:
>     [java] getting frontpage
>     [java] Got 30 frontpage entries
>     [java] java.lang.NullPointerException
>     [java]     at GetReactomeData.main(Unknown Source)
>     [java]     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
> Method)
>     [java]     at
> )
>     [java]     at
> .java:25)
>     [java]     at java.lang.reflect.Method.invoke(
>     [java]     at
>     [java]     at
>     [java]     at
>     [java]     at
>     [java]     at
>     [java]     at
>     [java]     at
>     [java]     at
> But when I launch the application manually it does not crash and completes
> fine.
> [d.wood@qfab-srs build]$ java RunApp
> getting frontpage
> Got 30 frontpage entries
> 109581  (Pathway)       Apoptosis (parent = null)
> 69620   (Pathway)       Cell Cycle Checkpoints (parent = null)
> 69278   (Pathway)       Cell Cycle, Mitotic (parent = null)
> 73894   (Pathway)       DNA Repair (parent = null)
> 69306   (Pathway)       DNA Replication (parent = null)
> 163200  (Pathway)       Electron Transport Chain (parent = null)
> .etc
> In both cases the CLASSPATH is set the same (I have compared these by
> outputting it within the script before it crashes).  The application is
> attempting to access data stored within deserialised java beans from a web
> services server, might this be breaking the ant VM?
> My testApp task is:
> <!-- testApp -->
> <target name="testApp" depends="compile"
>   description="run a direct test of the java app">
>    <java classname="RunApp">
>      <classpath>
> <pathelement path="${env.CLASSPATH}:${build}"/>
> <fileset dir="${build}">
>   <include name="RunApp"/>
> </fileset>
>      </classpath>
>    </java>
>  </target>
> Thanks for any help!
> Cheers,
> Dave

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