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From "Olivier Croisier" <>
Subject Re: calling ant from java program
Date Fri, 27 Aug 2004 08:56:09 GMT
> What may be the reason of  project.executetarget throwing nullpointer
> exception?
> regds


My first idea was that this exception could get thrown if you call the executeTarget method
with a null argument, but this error seems to be already managed by the BuildException (@see
ant javadoc).

[ executeTarget ]
public void executeTarget(java.lang.String targetName) throws BuildException
Executes the specified target and any targets it depends on.
	targetName - The name of the target to execute. Must not be null.
	BuildException - if the build failed

So... Another answer would be : your "NullPointerException" occurs if your Project object
is null (java obviously can't call the "executeTarget" method on a null Project object). Check
if your Project is initialized.

Third clue : the "test_config" string you give as an argument is a valid String, but its contents
may cause an error somewhere in the executeTarget process, for example if this isn't a valid
target name.
Or if the target is only defined as an internal target (no "description" for it) : I don't
know if executeTarget sees them.

best regs

Software Engineer
Thales IS - ANS

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