The jay/yydebug package should not be in both jars. This adds unnecessary size to the distro, and breaks Ruboto when it tries to package since each class is only allowed in one jar at package time.
I need more info - is it from a download (the location would be very helpful) or build from source but there I see
[INFO] --- maven-dependency-plugin:2.8:tree (default-cli) @ jruby-stdlib ---
[INFO] +- org.jruby:readline:jar:1.0-SNAPSHOT:provided
[INFO] +- org.jruby:openssl:jar:0.8.9-SNAPSHOT:provided
[INFO] +- org.bouncycastle:bcpkix-jdk15on:jar:1.47:compile
[INFO] \- org.bouncycastle:bcprov-jdk15on:jar:1.47:compile
I also check the jruby-jars gem which does also include only a META-INF directory without any java classes.
remove doublicated dependency #972
The changes look good! Thanks!