code: function runProc(args, cb) {
      var stoutBuffer = '',
          sterrBuffer = '';
      var proc = cp.spawn('java', args, {
          cwd: config.rootDir + '/bin'
      });
      proc.stdout.on('data', function(data) {
          stoutBuffer += data;
      });
      proc.stderr.on('data', function(data) {
          sterrBuffer += data;
      });
      proc.on('close', function(code) {
          if (code === null) {
              cb(code);
          } else {
              cb(null, stoutBuffer, sterrBuffer);
          }
          running--;
      });
  }
docs: Spawn a java process and return callback
  @param  {Array}   args  arguments to pass to java proc
  @param  {Function} cb   callback to be called with err, stout, sterr