How to publish a message "sensor_msgs/Imu"?

[jabrena]

Hi,
I would like to send a message sensor_msgs/Imu but I don´t see the object in the package:
https://github.com/rctoris/jrosbridge/tree/develop/src/main/java/edu/wpi/rail/jrosbridge/messages
How to solve the problem?

In ROSJava exist this message but here, I didn´t find it:

package sensor_msgs;

public interface Imu extends org.ros.internal.message.Message {

  static final java.lang.String _TYPE = "sensor_msgs/Imu";
  static final java.lang.String _DEFINITION = 
"# This is a message to hold data from an IMU (Inertial Measurement Unit)\n#\n
# Accelerations should be in m/s^2 (not in g\'s), and rotational velocity should be in rad/sec\n#\n
# If the covariance of the measurement is known, it should be filled in (if all you know is the \n
# variance of each measurement, e.g. from the datasheet, just put those along the diagonal)\n
# A covariance matrix of all zeros will be interpreted as \"covariance unknown\", and to use the\n
# data a covariance will have to be assumed or gotten from some other source\n#\n
# If you have no estimate for one of the data elements (e.g. your IMU doesn\'t produce an orientation \n
# estimate), please set element 0 of the associated covariance matrix to -1\n
# If you are interpreting this message, please check for a value of -1 in the first element of each \n
# covariance matrix, and disregard the associated estimate.\n\nHeader header\n\ngeometry_msgs/Quaternion orientation\nfloat64[9] orientation_covariance 
# Row major about x, y, z axes\n\ngeometry_msgs/Vector3 angular_velocity\nfloat64[9] angular_velocity_covariance 
# Row major about x, y, z axes\n\ngeometry_msgs/Vector3 linear_acceleration\nfloat64[9] linear_acceleration_covariance 
# Row major x, y z \n";

  std_msgs.Header getHeader();
  void setHeader(std_msgs.Header value);

  geometry_msgs.Quaternion getOrientation();

  void setOrientation(geometry_msgs.Quaternion value);

  double[] getOrientationCovariance();

  void setOrientationCovariance(double[] value);

  geometry_msgs.Vector3 getAngularVelocity();

  void setAngularVelocity(geometry_msgs.Vector3 value);

  double[] getAngularVelocityCovariance();

  void setAngularVelocityCovariance(double[] value);

  geometry_msgs.Vector3 getLinearAcceleration();

  void setLinearAcceleration(geometry_msgs.Vector3 value);

  double[] getLinearAccelerationCovariance();

  void setLinearAccelerationCovariance(double[] value);
}

I will create the implementation and later, I will send a PR with this message and previous one: sensor_msgs/LaserScan
#21

Many thanks in advance.

Juan Antonio