public static com.bulletphysics.linearmath.Transform convert(com.jme3.math.Transform in, com.bulletphysics.linearmath.Transform out) {
        convert(in.getTranslation(), out.origin);
        convert(in.getRotation(), out.basis);
        return out;
    }
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