When having many rules, a lot of time is spent in externalising lambda.

This time could be reduced by converting the post processing to parallel evaluation.

This could lead to up to 50% speed improvement:

• Parallel

BuildKJarFromResourceBenchmark.createKJarFromResource 1000 true avgt 20 1740.120 ± 20.796 ms/op

• Sequential

BuildKJarFromResourceBenchmark.createKJarFromResource 1000 true avgt 20 3716.894 ± 44.301 ms/op