Hello, I'm attaching the library source code. It is in Boost license 1.0. The library is based on luabind ideas, which is based on Boost.Python. The JNI interface makes a few things much harder, and makes mismatches almost always fatal and almost impossible to discover beforehand, which makes developing for JNI much harder. I'm implementing the features as I need it, so it is very incomplete. But it is possible to register a class like this: javabind::class_ component_class = env.find_class("java/awt/Component"); javabind::register_class ( javabind::reg::class_<awt::component>(component_class) .constructor(boost::bind(boost::value_factory<awt::component>(), _1, _2 , jvm)) .def<javabind::int_(awt::component const&)> ("nativeGetWidth", boost::bind(&awt::component::width, _1)) .def("nativeGetHeight", &awt::component::height) .def("nativeSetX", &awt::component::set_x) .def("nativeSetY", &awt::component::set_y) .def("nativeSetWidth", &awt::component::set_width) .def("nativeSetHeight", &awt::component::set_height) .def("nativeGetX", &awt::component::get_x) .def("nativeGetY", &awt::component::get_y) .def("nativeSetVisible", &awt::component::set_visible) .def("nativeIsVisible", &awt::component::is_visible) .def("nativeSetPreferredSize", &awt::component::set_preferred_size) .def("nativeSetDelay", &awt::component::set_delay) .def("nativeGetPreferredSize", &awt::component::get_preferred_size , "java/awt/Dimension") .def("nativeSetFocus", &awt::component::set_focus) ); And to call a method like this: javabind::method<void(javabind::object)> initxlet = jtv_xlet_class.method <void(javabind::object)>("initXlet", "javax/tv/xlet/XletContext"); initxlet(user_xlet, xlet_context); Any comments are appreciated, Regards, -- Felipe Magno de Almeida