I have disabled the embedded federation test suite for the sail again. Per the comment above, it is leaking threads which the JVM is unable to recover without a full GC. In fact, this is probably the root cause for . I only identified this interaction by forcing a full GC on the JVM using an external utility (the profiler). It is not enough to request a GC from within the JVM as it is free to ignore that request.
 https://sourceforge.net/apps/trac/bigdata/ticket/196 (Journal leaks memory)
Committed revision r6200.