attempt to remove trailing openjdk.yml

2014-04-07T09:14:15.06+0200 [STG]     ERR D, [2014-04-07T07:14:15.063910 #56] DEBUG -- /var/vcap/data/dea_next/admin_buildpacks/c5c27eead21028391c1f2b0a239033c29cb3f9a9/lib/java_buildpack/buildpack.rb:47:in `rescue in drive_buildpack_with_logger': Exception #<RuntimeError: OpenJDK JRE error: can't convert String into Hash> backtrace:
2014-04-07T09:14:15.06+0200 [STG]     ERR /var/vcap/data/dea_next/admin_buildpacks/c5c27eead21028391c1f2b0a239033c29cb3f9a9/lib/java_buildpack/repository/repository_index.rb:34:in `merge!'
2014-04-07T09:14:15.06+0200 [STG]     ERR /var/vcap/data/dea_next/admin_buildpacks/c5c27eead21028391c1f2b0a239033c29cb3f9a9/lib/java_buildpack/repository/repository_index.rb:34:in `block in initialize'
2014-04-07T09:14:15.06+0200 [STG]     ERR /var/vcap/data/dea_next/admin_buildpacks/c5c27eead21028391c1f2b0a239033c29cb3f9a9/lib/java_buildpack/util/download_cache.rb:73:in `block (2 levels) in get'