}
@JRubyMethod(name = "grpowned?", required = 1, module = true)
public static IRubyObject grpowned_p(IRubyObject recv, IRubyObject filename) {
Ruby runtime = recv.getRuntime();
FileStat stat = fileResource(filename).stat();
// JRUBY-4446, grpowned? always returns false on Windows
if (Platform.IS_WINDOWS) return runtime.getFalse();
return runtime.newBoolean(stat != null && stat.isGroupOwned());
}