code: private CreateSecurityGroupResponseType createSecurityGroup(final String groupName,
          final String groupDescription, final String vpcId) {
          CreateSecurityGroupResponseType ret = new CreateSecurityGroupResponseType();
          ret.setRequestId(UUID.randomUUID().toString());
          MockSecurityGroup mockSecurityGroup = mockSecurityGroupController.createSecurityGroup(groupName,
  groupDescription, vpcId);
          ret.setGroupId(mockSecurityGroup.getGroupId());
          return ret;
      }
docs: Handles "createSecurityGroup" request to create SecurityGroup and returns response with a SecurityGroup.
  @param vpcId vpc Id for SecurityGroup.
  @param groupName group Name.
  @param groupDescription group Desc.
  @return a CreateSecurityGroupResponseType with our new SecurityGroup