How do I modify a file in a jar file using ANT?

Question

I need to update an XML file that's inside of a jar file using ANT. I have to search for a string in the file and replace it with another value if that string exists.

Answer 1

A crude approach. Unzip the jar file, use the replace ant task, zip the files again and put the jar file back.

• Task: copy
• Task: unzip
• Task: replace
• Task: zip
• Task: move