THRIFT-427. java: Fix print_const_value

Simplify it a bit in the process, because the beans-style setters
are produced even in non-beans mode, and they handle isset internally.


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@762956 13f79535-47bb-0310-9956-ffa450edef68
1 file changed