400 Bad request error with Fitbit API

[henryla]

I'm working on a Java app where I use the Fitbit API to pull the user's information. But when I try to pull information about the user I get the following error:

org.springframework.web.client.HttpClientErrorException: 400 Bad Request
	org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:91)
	com.cc.ehealth.fitbit.web.WebTransport$CustomResponseErrorHandler.handleError(WebTransport.java:59)
	org.springframework.web.client.RestTemplate.handleResponse(RestTemplate.java:641)
	org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:597)
	org.springframework.web.client.RestTemplate.execute(RestTemplate.java:557)
	org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:475)
	com.cc.ehealth.fitbit.web.WebTransport.postForm(WebTransport.java:38)
	com.cc.ehealth.fitbit.oauth.OauthService.refreshToken(OauthService.java:73)
	com.cc.ehealth.fitbit.resource.ResourceAspect.refreshAccessTokenIfNeeded(ResourceAspect.java:36)
	sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:498)
	org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)
	org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)
	org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:68)
	org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
	org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
	org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)
	com.sun.proxy.$Proxy65.getUserInfo(Unknown Source)
	com.cc.chealth.services.HealthSyncServiceImpl.validateFitbitToken(HealthSyncServiceImpl.java:237)
	com.cc.chealth.PortalController.goToHealthJSP(PortalController.java:270)
	sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:498)
	org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
	org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
	org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
	org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:806)
	org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:729)
	org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129)
	com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77)

I have narrowed down the error to the following functions:

(the app gives the error at the validateFitbitToken() function)

@RequestMapping(value = { "/health" }, method = RequestMethod.GET)
	public String goToHealthJSP(HttpServletRequest request) {
		Object u = request.getSession().getAttribute("account");
		if (u == null) {
			return "redirect:/";
		}
		else
		{
			//commented out for now
			//request.getSession().removeAttribute("errorMsg");

			// Check if the user is logged into fitbit by seeing if they have the fitbit-auth flag set.
			System.out.println("portalcontroller before users----- ");
			User user = (User) u;
			System.out.println("this is users " + user);
			System.out.println("here 1");

			UserInfo fitbitUserInfo = healthSyncService.validateFitbitToken(user);
			System.out.println("here 2");
			request.setAttribute("fitbitAuth", user.isFitbitAuth());
			System.out.println("here 3");
			if (user.isFitbitAuth()) {
				// Refresh the user's health data from the Fitbit API, required for all page loads and reloads
				System.out.println("here 4");
				System.out.println("this is the user: " + user);
				//System.out.println("/n this is the user's fitbit info: " + fitbitUserInfo);
				healthSyncService.refreshSync(user, fitbitUserInfo);
				System.out.println("here 5");

			}
			System.out.println("portalcontroller after users----- ");
			return "portal/health";
		}

	}

This is the ValidateFitbitToken function, and it stop working at the getUserInfo() function

@Override
	public UserInfo validateFitbitToken(User user) {
		System.out.println("inside validateFitbitTokeb");
		if (!user.isFitbitAuth()) {
			// Short circuit method. No token, so no Fitbit link.
			System.out.println("no token");
			return null;
		}
		System.out.println("yes token");
		OauthAccessToken fitbitToken = user.getFitbitAuthToken();
		System.out.println("token set");
		System.out.println(fitbitToken);

		//Works till here
		UserInfo userInfo = resourceService.getUserInfo(fitbitToken);
		System.out.println("user info got");


		System.out.print("this is user info" + userInfo);
		if (userInfo == null && !user.isFitbitAuth()) {
			// The fitbit access token was invalid, so we will need to
			System.out.println("access token invalid");
			user.fitbitOauth2AccessToken = null;
			user.fitbitOauth2RefreshToken = null;
			mergeService.saveFitbitToken(user);
		}
		System.out.println("About to print user info");
		return userInfo;
	}

I believe that the token I set is working but I'm not really sure what is causing the issue. 

Any help is appreciated! I can provide more information or code if necessary. 

Thanks!