public static javax.vecmath.Quat4f convert(com.jme3.math.Quaternion oldQuat, javax.vecmath.Quat4f newQuat) {
        newQuat.w = oldQuat.getW();
        newQuat.x = oldQuat.getX();
        newQuat.y = oldQuat.getY();
        newQuat.z = oldQuat.getZ();
        return newQuat;
    }
Nice convenience methods for conversion between javax.vecmath and com.jme3.math
Objects, also some jme to jbullet mesh conversion.
@author normenhansen
jme3-jbullet/src/main/java/com/jme3/bullet/util/Converter.java