64bit server jvm fails with assertion

# Internal Error (/export2/BUILD_AREA/jdk7-64bit/hotspot/src/share/vm/opto/parse1.cpp:963), pid=782, tid=9
# Error: assert(_exits.control()->is_top() || !_gvn.type(ret_phi)->empty(),"return value must be well defined")
# Java VM: Java HotSpot(TM) 64-Bit Server VM (11.0-b08-fastdebug compiled mode solaris-sparc)