Unable to connect to the master

[jijoj]

[intern@SBSCLR03 mesos-helloworld-scala-master]$ java -cp target/Mesos-0.0.1-SNAPSHOT.jar -Djava.library.path=$MESOS_HOME/src/.libs com.madhu.mesos.DistributedShell "/bin/echo hello"
I0116 14:37:19.438419 12082 sched.cpp:226] Version: 1.1.0
I0116 14:37:19.447803 12099 sched.cpp:330] New master detected at master@127.0.0.1:5050
I0116 14:37:19.448545 12099 sched.cpp:341] No credentials provided. Attempting to register without authentication
E0116 14:37:19.449004 12104 process.cpp:2154] Failed to shutdown socket with fd 8: Transport endpoint is not connected

The above error is showing when I run the example. I have set master url in "DistributedShell.scala".
still the same error is showing. Is there any extra parameters to be set! I am using single node Mesos