RuntimeException in Android when using BroadcastReceiver and My Application stop working

Question

Unable to start receiver br.exemploalarmmanagerbn.BroadcastReceiverAux: java.lang.NullPointerException

previously my app worked properly.but after adding

new getNewMessages().execute(new ApiConnector());

code part it was giving a above run time error.

logcat

09: W/dalvikvm(17914): threadid=1: thread exiting with uncaught exception (group=0x40af49f0)
08-07 17:53:30.609: E/AndroidRuntime(17914): FATAL EXCEPTION: main
08-07 17:53:30.609: E/AndroidRuntime(17914): java.lang.RuntimeException: Unable to start receiver br.exemploalarmmanagerbn.BroadcastReceiverAux: java.lang.NullPointerException
08-07 17:53:30.609: E/AndroidRuntime(17914):    at android.app.ActivityThread.handleReceiver(ActivityThread.java:2126)
08-07 17:53:30.609: E/AndroidRuntime(17914):    at android.app.ActivityThread.access$1500(ActivityThread.java:123)
08-07 17:53:30.609: E/AndroidRuntime(17914):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1197)
08-07 17:53:30.609: E/AndroidRuntime(17914):    at android.os.Handler.dispatchMessage(Handler.java:99)
08-07 17:53:30.609: E/AndroidRuntime(17914):    at android.os.Looper.loop(Looper.java:137)
08-07 17:53:30.609: E/AndroidRuntime(17914):    at android.app.ActivityThread.main(ActivityThread.java:4424)
08-07 17:53:30.609: E/AndroidRuntime(17914):    at java.lang.reflect.Method.invokeNative(Native Method)
08-07 17:53:30.609: E/AndroidRuntime(17914):    at java.lang.reflect.Method.invoke(Method.java:511)
08-07 17:53:30.609: E/AndroidRuntime(17914):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:817)
08-07 17:53:30.609: E/AndroidRuntime(17914):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:584)
08-07 17:53:30.609: E/AndroidRuntime(17914):    at dalvik.system.NativeStart.main(Native Method)
08-07 17:53:30.609: E/AndroidRuntime(17914): Caused by: java.lang.NullPointerException
08-07 17:53:30.609: E/AndroidRuntime(17914):    at br.exemploalarmmanagerbn.BroadcastReceiverAux.onReceive(BroadcastReceiverAux.java:46)
08-07 17:53:30.609: E/AndroidRuntime(17914):    at android.app.ActivityThread.handleReceiver(ActivityThread.java:2119)
08-07 17:53:30.609: E/AndroidRuntime(17914):    ... 10 more
08-07 17:53:31.249: W/System.err(17914): java.net.UnknownHostException: Unable to resolve host "crowdeye.crowderia.com": No address associated with hostname
08-07 17:53:31.269: W/System.err(17914):    at java.net.InetAddress.lookupHostByName(InetAddress.java:467)
08-07 17:53:31.269: W/System.err(17914):    at java.net.InetAddress.getAllByNameImpl(InetAddress.java:258)
08-07 17:53:31.269: W/System.err(17914):    at java.net.InetAddress.getAllByName(InetAddress.java:236)
08-07 17:53:31.269: W/System.err(17914):    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:137)
08-07 17:53:31.269: W/System.err(17914):    at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
08-07 17:53:31.279: W/System.err(17914):    at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
08-07 17:53:31.279: W/System.err(17914):    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360)
08-07 17:53:31.279: W/System.err(17914):    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
08-07 17:53:31.279: W/System.err(17914):    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
08-07 17:53:31.279: W/System.err(17914):    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
08-07 17:53:31.279: W/System.err(17914):    at br.exemploalarmmanagerbn.ApiConnector.getMessage(ApiConnector.java:31)
08-07 17:53:31.279: W/System.err(17914):    at br.exemploalarmmanagerbn.getNewMessages.doInBackground(getNewMessages.java:14)
08-07 17:53:31.279: W/System.err(17914):    at br.exemploalarmmanagerbn.getNewMessages.doInBackground(getNewMessages.java:1)
08-07 17:53:31.279: W/System.err(17914):    at android.os.AsyncTask$2.call(AsyncTask.java:264)
08-07 17:53:31.289: W/System.err(17914):    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
08-07 17:53:31.289: W/System.err(17914):    at java.util.concurrent.FutureTask.run(FutureTask.java:137)
08-07 17:53:31.289: W/System.err(17914):    at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:208)
08-07 17:53:31.289: W/System.err(17914):    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
08-07 17:53:31.289: W/System.err(17914):    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
08-07 17:53:31.299: W/System.err(17914):    at java.lang.Thread.run(Thread.java:856)
08-07 17:53:31.299: W/System.err(17914): Caused by: libcore.io.GaiException: getaddrinfo failed: EAI_NODATA (No address associated with hostname)
08-07 17:53:31.349: W/System.err(17914):    at libcore.io.Posix.getaddrinfo(Native Method)
08-07 17:53:31.349: W/System.err(17914):    at libcore.io.ForwardingOs.getaddrinfo(ForwardingOs.java:55)
08-07 17:53:31.359: W/System.err(17914):    at java.net.InetAddress.lookupHostByName(InetAddress.java:452)
08-07 17:53:31.359: W/System.err(17914):    ... 19 more

is there any thing in your log like cause ? because you are getting a nullpointer — Sree, Aug 07 '15 at 11:27
Does the async Task work normally when not called fro the receiver? Also, its bad practice to run an async task inside a broadcast receiver. You should put it into a service. — sirFunkenstine, Aug 07 '15 at 11:33
Use LogCat to examine the Java stack trace associated with your crash: https://stackoverflow.com/questions/23353173/unfortunately-myapp-has-stopped-how-can-i-solve-this If you do not understand the stack trace, or cannot understand how your code is triggering this crash, edit your question and post the stack trace. — CommonsWare, Aug 07 '15 at 11:35
gerarNotificacao(context, new Intent(context, MainActivity.class), "Nova mensagem",data.getTitle(),data.getShort_desc()); } — Rajitha Perera, Aug 07 '15 at 12:29
data.getTitle(),data.getShort_desc() print them in log and check whether you are getting values or not — karan, Aug 07 '15 at 12:31
it surely will be. you are not setting Data data; variable to anything so you will get a NPE — karan, Aug 07 '15 at 12:32
thing is that to get those values I should run----> new getNewMessages().execute(new ApiConnector());..but when I run that code I got this exceptions — Rajitha Perera, Aug 07 '15 at 12:37

score 1 · Answer 1 · answered Aug 07 '15 at 11:33

1

There may be other issues, but you need to add a period (.) to your receiver name android:name="BroadcastReceiverAux" should be receiver android:name=".BroadcastReceiverAux". The reason is you're specifying a class name (and it is appended to your package name declared at the beginning of your manifest)

Take a look at the name part of this documentation

answered Aug 07 '15 at 11:33

Nick Cardoso

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Both of those `android:name` values are equivalent. – CommonsWare Aug 07 '15 at 11:34
That's my mistake then. I just recompiled one of my own apps to test this, I was so sure this didn't work! – Nick Cardoso Aug 07 '15 at 11:38
For a bare class name, the leading `.` is optional. However, I think sub-packages are supported, and those require a leading `.`. So, given a `package` of `com.cardoso.awesomeapp`, a component named `com.cardoso.awesomeapp.Foo` could be written as `Foo`. But a component named ``com.cardoso.awesomeapp.bar.Goo` might need to be written either `.bar.Goo` or fully-qualified. – CommonsWare Aug 07 '15 at 12:03

RuntimeException in Android when using BroadcastReceiver and My Application stop working

1 Answers1