15:30:27,047 INFO  [JPAPushMessageInformationDao] (http-/0.0.0.0:8080-13) Message submitted to PushNetworks for further processing
15:30:27,049 INFO  [JPAPushMessageInformationDao] (EJB default - 5) Processing send request with '[alert=testtt, data={}, criteria=[aliases=null, deviceTypes=null, categories=null, variants=[f0520a08-1806-48a8-96fd-70348c5a6af4]], sound=default, action-category=null, badge=-1, time-to-live=-1, simplePush=null, content-available=false]' payload
15:30:27,081 INFO  [GCMPushNotificationSender] (EJB default - 5) Sending payload for [4] devices to GCM
15:30:27,346 SEVERE [GCMPushNotificationSender] (EJB default - 5) Error sending payload to GCM server: java.util.ConcurrentModificationException
	at java.util.SubList.checkForComodification(Unknown Source) [rt.jar:1.6.0_38]
	at java.util.SubList.listIterator(Unknown Source) [rt.jar:1.6.0_38]
	at java.util.AbstractList.listIterator(Unknown Source) [rt.jar:1.6.0_38]
	at java.util.SubList.iterator(Unknown Source) [rt.jar:1.6.0_38]
	at java.util.AbstractCollection.contains(Unknown Source) [rt.jar:1.6.0_38]
	at java.util.AbstractCollection.removeAll(Unknown Source) [rt.jar:1.6.0_38]
	at org.jboss.aerogear.unifiedpush.message.sender.GCMPushNotificationSender.sendPushMessage(GCMPushNotificationSender.java:104) [unifiedpush-push-1.0.2.jar:1.0.2]
	at org.jboss.aerogear.unifiedpush.message.SenderServiceImpl.send(SenderServiceImpl.java:116) [unifiedpush-push-1.0.2.jar:1.0.2]
	at sun.reflect.GeneratedMethodAccessor216.invoke(Unknown Source) [:1.6.0_38]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) [rt.jar:1.6.0_38]
	at java.lang.reflect.Method.invoke(Unknown Source) [rt.jar:1.6.0_38]
	at org.jboss.as.ee.component.ManagedReferenceMethodInterceptor.processInvocation(ManagedReferenceMethodInterceptor.java:52) [jboss-as-ee-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:63) [jboss-as-ee-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:374) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.weld.ejb.Jsr299BindingsInterceptor.doMethodInterception(Jsr299BindingsInterceptor.java:86) [jboss-as-weld-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at org.jboss.as.weld.ejb.Jsr299BindingsInterceptor.processInvocation(Jsr299BindingsInterceptor.java:97) [jboss-as-weld-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:63) [jboss-as-ee-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:63) [jboss-as-ee-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ejb3.component.invocationmetrics.ExecutionTimeInterceptor.processInvocation(ExecutionTimeInterceptor.java:43) [jboss-as-ejb3-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.jpa.interceptor.SBInvocationInterceptor.processInvocation(SBInvocationInterceptor.java:47) [jboss-as-jpa-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.weld.ejb.EjbRequestScopeActivationInterceptor.processInvocation(EjbRequestScopeActivationInterceptor.java:93) [jboss-as-weld-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.invocation.InitialInterceptor.processInvocation(InitialInterceptor.java:21) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ee.component.interceptors.ComponentDispatcherInterceptor.processInvocation(ComponentDispatcherInterceptor.java:53) [jboss-as-ee-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ejb3.component.pool.PooledInstanceInterceptor.processInvocation(PooledInstanceInterceptor.java:51) [jboss-as-ejb3-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:272) [jboss-as-ejb3-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at org.jboss.as.ejb3.tx.CMTTxInterceptor.required(CMTTxInterceptor.java:339) [jboss-as-ejb3-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:238) [jboss-as-ejb3-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41) [jboss-as-ejb3-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ejb3.component.interceptors.ShutDownInterceptorFactory$1.processInvocation(ShutDownInterceptorFactory.java:64) [jboss-as-ejb3-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:59) [jboss-as-ejb3-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50) [jboss-as-ee-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ejb3.component.interceptors.AdditionalSetupInterceptor.processInvocation(AdditionalSetupInterceptor.java:55) [jboss-as-ejb3-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ee.component.TCCLInterceptor.processInvocation(TCCLInterceptor.java:45) [jboss-as-ee-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:185) [jboss-as-ee-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at org.jboss.as.ee.component.ViewDescription$1.processInvocation(ViewDescription.java:182) [jboss-as-ee-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
	at org.jboss.as.ejb3.component.interceptors.AsyncFutureInterceptorFactory$1$1.runInvocation(AsyncFutureInterceptorFactory.java:89) [jboss-as-ejb3-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at org.jboss.as.ejb3.component.interceptors.AsyncInvocationTask.run(AsyncInvocationTask.java:73) [jboss-as-ejb3-7.4.0.Final-redhat-19.jar:7.4.0.Final-redhat-19]
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) [rt.jar:1.6.0_38]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [rt.jar:1.6.0_38]
	at java.lang.Thread.run(Unknown Source) [rt.jar:1.6.0_38]
	at org.jboss.threads.JBossThread.run(JBossThread.java:122)
 
15:30:27,377 WARNING [GCMPushNotificationSender] (EJB default - 5) Error on 'android' delivery