Need to support JRuby 1.1 and other new runtimes that are released in the 6.1 timeframe.
The bundled version of JRuby should be updated to 1.1.
Will not be done for M2, but needs to be done by FCS.
I updated us to 1.1RC2 last week. Leaving this issue open to track updating to 1.1 when it's released.
This has to be done for 6.1 -> P1, defect. We could not do this, due to the timing of JRuby 1.1 FCS release.
This is done, both in the trunk and in 6.1.