public Response authorizeGet(@Context HttpServletRequest request) throws OAuthSystemException {
OAuthIssuer oauthIssuerImpl = new OAuthIssuerImpl(new MD5Generator());
OAuthResponse response = OAuthASResponse
.tokenResponse(HttpServletResponse.SC_OK)
.setAccessToken(oauthIssuerImpl.accessToken())
.setExpiresIn("3600")
.buildJSONMessage();
return Response.status(response.getResponseStatus()).entity(response.getBody()).build();
}