private long fetchActionHandle( String actionName ){
        LongBuffer longBuffer = BufferUtils.createLongBuffer(1);
        int errorCode = VRInput.VRInput_GetActionHandle(actionName, longBuffer);
        if (errorCode !=0 ){
            logger.warning( "An error code of " + errorCode + " was reported while registering an action manifest" );
        }
        return longBuffer.get(0);
    }
Converts an action name (as it appears in the action manifest) to a handle (long) that the rest of the
lwjgl (and openVR) wants to talk in
@param actionName The name of the action. Will be something like /actions/main/in/openInventory
@return a long that is the handle that can be used to refer to the action
jme3-vr/src/main/java/com/jme3/input/vr/lwjgl_openvr/LWJGLOpenVRInput.java