Dave..what happens when you specify the dir, fork, failonerror and boost the
memory used to 128MB?
<java classname="RunApp"
dir="C:/"
fork="true"
failonerror="true"
maxmemory="128m"
>
<classpath>
<pathelement path="${env.CLASSPATH}:${build}"/>
<fileset dir="${build}">
<include name="RunApp"/>
</fileset>
</classpath>
</java>
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----- Original Message -----
From: "David Wood" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Tuesday, May 15, 2007 9:26 PM
Subject: java exception when task executed with ant but not manually
Hello users,
I am getting different results when executing a java program with ant than
when I execute it manually.
When ant is used the program throws a null pointer exception eg:
[EMAIL PROTECTED] ant testApp
Buildfile: build.xml
init:
compile:
testApp:
[java] getting frontpage
[java] Got 30 frontpage entries
[java] java.lang.NullPointerException
[java] at GetReactomeData.main(Unknown Source)
[java] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
[java] at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39
)
[java] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl
.java:25)
[java] at java.lang.reflect.Method.invoke(Method.java:585)
[java] at
org.apache.tools.ant.taskdefs.ExecuteJava.run(ExecuteJava.java:202)
[java] at
org.apache.tools.ant.taskdefs.ExecuteJava.execute(ExecuteJava.java:134)
[java] at org.apache.tools.ant.taskdefs.Java.run(Java.java:710)
[java] at
org.apache.tools.ant.taskdefs.Java.executeJava(Java.java:178)
[java] at org.apache.tools.ant.taskdefs.Java.execute(Java.java:84)
[java] at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
[java] at org.apache.tools.ant.Task.perform(Task.java:364)
[java] at org.apache.tools.ant.Target.execute(Target.java:341)
But when I launch the application manually it does not crash and completes
fine.
[EMAIL PROTECTED] build]$ 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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