Catching BuildException in Ant

[tewall]

I've created a custom task for Ant, and the exceptions come back
something like this:

filemonitor.xml:8: java.lang.StringIndexOutOfBoundsException: String
index out of range: -6

I'd like to know the line number of the task that's failing. I've
tried catching the BuildException, and printing the stack trace, but
that didn't work.

Ideas?

 

[Oliver Wong]

I've created a custom task for Ant, and the exceptions come back
something like this:

filemonitor.xml:8: java.lang.StringIndexOutOfBoundsException: String
index out of range: -6

I'd like to know the line number of the task that's failing. I've
tried catching the BuildException, and printing the stack trace, but
that didn't work.

Ideas?

I don't know the API that Ant exposes, but if it doesn't expose that line
number in any other way, you maybe be stuck parsing the error message
itself. I'd use the colon char (':') to split the message into 3 parts:
filename, line number, message.

- Oliver