Clarification - unless and/or if

Hello, I am using Ant 1.6.5 - can multiple properties be specified in the "if" or "unless" attributes of a given target? ... ... If so, is the relationship an "or" or an "and"? If this is not possible, what is the best practice for

JAR Manifest - default vs. custom

Hello all, I am wondering if anyone has any ideas on how to better solve this ANT issue ... My constraint is that I need a single build file (driven by a single, main project properties file) to process/package any number of different J2EE projects. In all aspects this is working quite well, E