I\'m making a simple program that compile and make a jar file but i don\'t want to use a build.xml (and then invoke it with exec).
but i want using ANT API(for examp
You might as well get the answer directly from the source: Using Ant Tasks Outside of Ant
You might also be interested in something like Leafcutter, which claims to provide:
An API which allows you to execute Ant tasks from Java code.
I haven't used it personally, just letting you know that it exists...