public override int GetHashCode() { int prime = 31; int result = 1; result = prime * result + ((containerID == null) ? 0 : containerID.GetHashCode()); result = prime * result + ((containerMgrAddress == null) ? 0 : containerMgrAddress .GetHashCode()); result = prime * result + ((containerToken == null) ? 0 : containerToken.GetHashCode ()); result = prime * result + ((taskAttemptID == null) ? 0 : taskAttemptID.GetHashCode ()); return(result); }