sbt/sbt-osgi — pull request #12 by justinp (2013-12-07 14:19:34+00:00)
Title: Serialize calls to builder.build (which is not thread-safe)

This prevents intermittent NumberFormatException errors when multiple bundles are being built concurrently. Being a timing issue, I didn't make a test case for it but I've been using it for a week or so now and have not seen a single NumberFormatException.