cmd/do: Be explicit about the Java file encoding. (#298)
cmd/do: Be explicit about the Java file encoding. (#298)

Issue: 280
ben-clayton/gapid,Qining/gapid,eternity74/gapid,pmuetschard/gapid,dsrbecky/gapid,google/gapid,eternity74/gapid,baldwinn860/gapid,google/agi,ek9852/gapid,ek9852/gapid,ben-clayton/gapid,ek9852/gapid,ben-clayton/gapid,google/agi,Qining/gapid,baldwinn860/gapid,google/gapid,baldwinn860/gapid,Qining/gapid,google/gapid,eternity74/gapid,pmuetschard/gapid,dsrbecky/gapid,ben-clayton/gapid,google/gapid,google/agi,google/agi,google/gapid,google/agi,baldwinn860/gapid,google/gapid,eternity74/gapid,eternity74/gapid,baldwinn860/gapid,ek9852/gapid,pmuetschard/gapid,baldwinn860/gapid,ek9852/gapid,dsrbecky/gapid,ben-clayton/gapid,google/agi,pmuetschard/gapid,ben-clayton/gapid,dsrbecky/gapid,Qining/gapid,google/agi,eternity74/gapid,ek9852/gapid,ben-clayton/gapid,dsrbecky/gapid,ek9852/gapid,google/gapid,google/agi,ek9852/gapid,pmuetschard/gapid,baldwinn860/gapid,google/gapid,Qining/gapid,pmuetschard/gapid,Qining/gapid,ben-clayton/gapid,dsrbecky/gapid,pmuetschard/gapid,dsrbecky/gapid,Qining/gapid,baldwinn860/gapid,Qining/gapid,dsrbecky/gapid,pmuetschard/gapid,eternity74/gapid