Fail to retrieve cached data when offline

Steps to reproduce

1. Do get request when online
2. Validate data cached using adb shell
3. Kill the app
4. Disable Cellular data and Wifi
5. Running the app

Server response while online

2-22 22:53:56.735 15941-16350/com.mycompany.android D/Retrofit: <--- HTTP 200 http://mycompany.com/api/test (638ms)
12-22 22:53:56.735 15941-16350/com.mycompany.android D/Retrofit: Server: nginx/1.4.6 (Ubuntu)
12-22 22:53:56.735 15941-16350/com.mycompany.android D/Retrofit: Content-Type: application/json
12-22 22:53:56.735 15941-16350/com.mycompany.android D/Retrofit: Transfer-Encoding: chunked
12-22 22:53:56.735 15941-16350/com.mycompany.android D/Retrofit: Connection: keep-alive
12-22 22:53:56.735 15941-16350/com.mycompany.android D/Retrofit: Cache-Control: max-age=900, max-stale=4838400, public
12-22 22:53:56.735 15941-16350/com.mycompany.android D/Retrofit: Allow: POST, GET, DELETE
12-22 22:53:56.735 15941-16350/com.mycompany.android D/Retrofit: Date: Tue, 22 Dec 2015 20:54:03 GMT
12-22 22:53:56.735 15941-16350/com.mycompany.android D/Retrofit: OkHttp-Selected-Protocol: http/1.1
12-22 22:53:56.735 15941-16350/com.mycompany.android D/Retrofit: OkHttp-Sent-Millis: 1450817636439
12-22 22:53:56.735 15941-16350/com.mycompany.android D/Retrofit: OkHttp-Received-Millis: 1450817636733
12-22 22:53:56.742 15941-16350/com.mycompany.android D/Retrofit: [‘my data’]
12-22 22:53:56.742 15941-16350/com.mycompany.android D/Retrofit: <--- END HTTP (3180-byte body)

Logs when offline

12-22 22:58:15.980 20271-20271/com.mycompany.android W/System.err: com.mycompany.api.MyException: Unable to resolve host "mycompany.com": No address associated with hostname
12-22 22:58:15.980 20271-20271/com.mycompany.android W/System.err:     at retrofit.RestAdapter$RestHandler.invokeRequest(RestAdapter.java:395)
12-22 22:58:15.981 20271-20271/com.mycompany.android W/System.err:     at retrofit.RestAdapter$RestHandler.access$100(RestAdapter.java:220)
12-22 22:58:15.981 20271-20271/com.mycompany.android W/System.err:     at retrofit.RestAdapter$RestHandler$2.obtainResponse(RestAdapter.java:278)
12-22 22:58:15.981 20271-20271/com.mycompany.android W/System.err:     at retrofit.CallbackRunnable.run(CallbackRunnable.java:42)
12-22 22:58:15.981 20271-20271/com.mycompany.android W/System.err:     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
12-22 22:58:15.981 20271-20271/com.mycompany.android W/System.err:     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
12-22 22:58:15.981 20271-20271/com.mycompany.android W/System.err:     at retrofit.Platform$Android$2$1.run(Platform.java:142)
12-22 22:58:15.981 20271-20271/com.mycompany.android W/System.err:     at java.lang.Thread.run(Thread.java:818)
12-22 22:58:16.343 20271-20358/com.mycompany.android D/Retrofit: ---> HTTP GET http://mycompany.com/api/test
12-22 22:58:16.343 20271-20358/com.mycompany.android D/Retrofit: ---> END HTTP (no body)
12-22 22:58:16.346 20271-20358/com.mycompany.android D/Retrofit: ---- ERROR http://mycompany.com/api/test
12-22 22:58:16.347 20271-20358/com.mycompany.android D/Retrofit: java.net.UnknownHostException: Unable to resolve host "mycompany.com": No address associated with hostname
                                                                  at java.net.InetAddress.lookupHostByName(InetAddress.java:427)
                                                                  at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
                                                                  at java.net.InetAddress.getAllByName(InetAddress.java:215)
                                                                  at com.squareup.okhttp.internal.Network$1.resolveInetAddresses(Network.java:29)
                                                                  at com.squareup.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:188)
                                                                  at com.squareup.okhttp.internal.http.RouteSelector.nextProxy(RouteSelector.java:157)
                                                                  at com.squareup.okhttp.internal.http.RouteSelector.next(RouteSelector.java:100)
                                                                  at com.squareup.okhttp.internal.http.HttpEngine.createNextConnection(HttpEngine.java:357)
                                                                  at com.squareup.okhttp.internal.http.HttpEngine.nextConnection(HttpEngine.java:340)
                                                                  at com.squareup.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:330)
                                                                  at com.squareup.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:248)
                                                                  at com.squareup.okhttp.Call.getResponse(Call.java:273)
                                                                  at com.squareup.okhttp.Call$ApplicationInterceptorChain.proceed(Call.java:230)
                                                                  at com.squareup.okhttp.Call.getResponseWithInterceptorChain(Call.java:201)
                                                                  at com.squareup.okhttp.Call.execute(Call.java:81)
                                                                  at retrofit.client.OkClient.execute(OkClient.java:53)
                                                                  at retrofit.RestAdapter$RestHandler.invokeRequest(RestAdapter.java:326)
                                                                  at retrofit.RestAdapter$RestHandler.access$100(RestAdapter.java:220)
                                                                  at retrofit.RestAdapter$RestHandler$2.obtainResponse(RestAdapter.java:278)
                                                                  at retrofit.CallbackRunnable.run(CallbackRunnable.java:42)
                                                                  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
                                                                  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
                                                                  at retrofit.Platform$Android$2$1.run(Platform.java:142)
                                                                  at java.lang.Thread.run(Thread.java:818)
12-22 22:58:16.347 20271-20358/com.mycompany.android D/Retrofit: ---- END ERROR
12-22 22:58:16.372 20271-20363/com.mycompany.android I/OpenGLRenderer: Initialized EGL, version 1.4
12-22 22:58:16.378 20271-20363/com.mycompany.android D/OpenGLRenderer: Enabling debug mode 0
12-22 22:58:16.407 20271-20271/com.mycompany.android D/com.instabug.library: ActivityLifecycleListener: SplashActivity_ paused
12-22 22:58:16.407 20271-20271/com.mycompany.android D/com.instabug.library: Stopping shake detection
12-22 22:58:16.429 20271-20271/com.mycompany.android W/System.err: retrofit.RetrofitError: Unable to resolve host "mycompany.com": No address associated with hostname
12-22 22:58:16.429 20271-20271/com.mycompany.android W/System.err:     at retrofit.RestAdapter$RestHandler.invokeRequest(RestAdapter.java:395)
12-22 22:58:16.429 20271-20271/com.mycompany.android W/System.err:     at retrofit.RestAdapter$RestHandler.access$100(RestAdapter.java:220)
12-22 22:58:16.429 20271-20271/com.mycompany.android W/System.err:     at retrofit.RestAdapter$RestHandler$2.obtainResponse(RestAdapter.java:278)
12-22 22:58:16.429 20271-20271/com.mycompany.android W/System.err:     at retrofit.CallbackRunnable.run(CallbackRunnable.java:42)
12-22 22:58:16.429 20271-20271/com.mycompany.android W/System.err:     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
12-22 22:58:16.429 20271-20271/com.mycompany.android W/System.err:     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
12-22 22:58:16.429 20271-20271/com.mycompany.android W/System.err:     at retrofit.Platform$Android$2$1.run(Platform.java:142)
12-22 22:58:16.429 20271-20271/com.mycompany.android W/System.err:     at java.lang.Thread.run(Thread.java:818)
12-22 22:58:16.429 20271-20271/com.mycompany.android W/System.err: Caused by: java.net.UnknownHostException: Unable to resolve host "mycompany.com": No address associated with hostname
12-22 22:58:16.429 20271-20271/com.mycompany.android W/System.err:     at java.net.InetAddress.lookupHostByName(InetAddress.java:427)
12-22 22:58:16.429 20271-20271/com.mycompany.android W/System.err:     at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
12-22 22:58:16.429 20271-20271/com.mycompany.android W/System.err:     at java.net.InetAddress.getAllByName(InetAddress.java:215)
12-22 22:58:16.429 20271-20271/com.mycompany.android W/System.err:     at com.squareup.okhttp.internal.Network$1.resolveInetAddresses(Network.java:29)
12-22 22:58:16.429 20271-20271/com.mycompany.android W/System.err:     at com.squareup.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:188)
12-22 22:58:16.429 20271-20271/com.mycompany.android W/System.err:     at com.squareup.okhttp.internal.http.RouteSelector.nextProxy(RouteSelector.java:157)
12-22 22:58:16.430 20271-20271/com.mycompany.android W/System.err:     at com.squareup.okhttp.internal.http.RouteSelector.next(RouteSelector.java:100)
12-22 22:58:16.430 20271-20271/com.mycompany.android W/System.err:     at com.squareup.okhttp.internal.http.HttpEngine.createNextConnection(HttpEngine.java:357)
12-22 22:58:16.430 20271-20271/com.mycompany.android W/System.err:     at com.squareup.okhttp.internal.http.HttpEngine.nextConnection(HttpEngine.java:340)
12-22 22:58:16.430 20271-20271/com.mycompany.android W/System.err:     at com.squareup.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:330)
12-22 22:58:16.430 20271-20271/com.mycompany.android W/System.err:     at com.squareup.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:248)
12-22 22:58:16.430 20271-20271/com.mycompany.android W/System.err:     at com.squareup.okhttp.Call.getResponse(Call.java:273)
12-22 22:58:16.430 20271-20271/com.mycompany.android W/System.err:     at com.squareup.okhttp.Call$ApplicationInterceptorChain.proceed(Call.java:230)
12-22 22:58:16.430 20271-20271/com.mycompany.android W/System.err:     at com.squareup.okhttp.Call.getResponseWithInterceptorChain(Call.java:201)
12-22 22:58:16.430 20271-20271/com.mycompany.android W/System.err:     at com.squareup.okhttp.Call.execute(Call.java:81)
12-22 22:58:16.430 20271-20271/com.mycompany.android W/System.err:     at retrofit.client.OkClient.execute(OkClient.java:53)
12-22 22:58:16.430 20271-20271/com.mycompany.android W/System.err:     at retrofit.RestAdapter$RestHandler.invokeRequest(RestAdapter.java:326)
12-22 22:58:16.430 20271-20271/com.mycompany.android W/System.err:  ... 7 more

[swankjesse]

test and test/ are different URLs. No bug!

[FisnikIbishi]

I use the interceptor like below and works fine for me. Hope it will help you

private val offlineResponseCacheInterceptor = Interceptor { chain -> val originalResponse = chain.proceed(chain.request()) originalResponse.newBuilder() .removeHeader(“Pragma”) .header(“Cache-Control”, String.format(“max-age=%d”, 60)) .build() }