Version 0.2.27 of jarc now supports to run annotations processors when a jar file is built. The syntax is simple, just add a X-Jarc-Processors attribute in the manifest file header with a list of jar files, and jarc will automatically run the processors found by querying the META-INF/services/javax.annotation.processing.Processor file inside the jar files:
Manifest-Version: 1.0
Main-Class: org.implementers.apps.turnuri.Main
X-Jarc-Target: 1.7
X-Jarc-Processors: /usr/share/lib/processor.jar
Name: org/implementers/apps/turnuri/Main.class
In turn, it is easy to build an annotation processor with jarc, here’s the manifest file for a processor I am currently developing:
Manifest-Version: 1.0
Class-Path: /usr/share/java/jcip.jar
X-Jarc-Target: 1.6
Name: org/implementers/management/annotations/processing/Main.class
X-Jarc-Service: javax.annotation.processing.Processor
Note that the Java compiler does not run processors on dependent files, so you need to add a “Name:” attribute for all Java files that need to be processed.
Also starting with this version, the JDK 1.7 is required to run jarc – but jarc can still cross-compile for all the versions of Java starting with 1.5.