The request seems to cause problems so blockingSubscribe doesn't seem to be a good choice here. This commit will replace blockingSubscribe by subscribe and modify the related code in order to be executed when the request succeeds.
The root cause why the request seems to cause problems may have to be analyzed further.
I was not able to reproduce the ANR without this PR, however the following error was reported on gplay console very often!:
at jdk.internal.misc.Unsafe.park (Native method)
at java.util.concurrent.locks.LockSupport.park (LockSupport.java:341)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionNode.block (AbstractQueuedSynchronizer.java:506)
at java.util.concurrent.ForkJoinPool.unmanagedBlock (ForkJoinPool.java:3466)
at java.util.concurrent.ForkJoinPool.managedBlock (ForkJoinPool.java:3437)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await (AbstractQueuedSynchronizer.java:1623)
at java.util.concurrent.LinkedBlockingQueue.take (LinkedBlockingQueue.java:435)
at io.reactivex.internal.operators.observable.ObservableBlockingSubscribe.subscribe (ObservableBlockingSubscribe.java:56)
at io.reactivex.Observable.blockingSubscribe (Observable.java:5552)
at com.nextcloud.talk.chat.ChatActivity.setupWebsocket (ChatActivity.kt:2445)
at com.nextcloud.talk.chat.ChatActivity.joinRoomWithPassword (ChatActivity.kt:2402)
at com.nextcloud.talk.chat.ChatActivity.initObservers$lambda$13 (ChatActivity.kt:594)
at com.nextcloud.talk.chat.ChatActivity.$r8$lambda$QKH5JCFLmCzRMlSJ-EV-m4IW5ig (unavailable)
at com.nextcloud.talk.chat.ChatActivity$$ExternalSyntheticLambda38.invoke (D8$$SyntheticClass)
at com.nextcloud.talk.chat.ChatActivity$sam$androidx_lifecycle_Observer$0.onChanged (unavailable:2)
at androidx.lifecycle.LiveData.considerNotify (LiveData.java:133)
at androidx.lifecycle.LiveData.dispatchingValue (LiveData.java:151)
at androidx.lifecycle.LiveData.setValue (LiveData.java:309)
at androidx.lifecycle.MutableLiveData.setValue (MutableLiveData.java:50)
at com.nextcloud.talk.chat.viewmodels.ChatViewModel.getCapabilities (ChatViewModel.kt:240)
at com.nextcloud.talk.chat.ChatActivity$initObservers$1$1.invokeSuspend (ChatActivity.kt:553)
at com.nextcloud.talk.chat.ChatActivity$initObservers$1$1.invoke (unavailable:8)
at com.nextcloud.talk.chat.ChatActivity$initObservers$1$1.invoke (unavailable:4)
at kotlinx.coroutines.flow.FlowKt__TransformKt$onEach$$inlined$unsafeTransform$1$2.emit (Emitters.kt:219)
at kotlinx.coroutines.flow.FlowKt__ErrorsKt$catchImpl$2.emit (Errors.kt:154)
at kotlinx.coroutines.flow.FlowKt__TransformKt$onEach$$inlined$unsafeTransform$1$2.emit (Emitters.kt:220)
at kotlinx.coroutines.flow.SharedFlowImpl.collect$suspendImpl (SharedFlow.kt:392)
at kotlinx.coroutines.flow.SharedFlowImpl$collect$1.invokeSuspend (unavailable:15)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith (ContinuationImpl.kt:33)
at kotlinx.coroutines.DispatchedTask.run (DispatchedTask.kt:104)
at android.os.Handler.handleCallback (Handler.java:938)
at android.os.Handler.dispatchMessage (Handler.java:99)
at android.os.Looper.loopOnce (Looper.java:210)
at android.os.Looper.loop (Looper.java:299)
at android.app.ActivityThread.main (ActivityThread.java:8168)
at java.lang.reflect.Method.invoke (Native method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:556)
at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1037)
Signed-off-by: Marcel Hibbe <dev@mhibbe.de>
As remote server is empty instead null when not available, the check was also true when no remote server was in use.
Signed-off-by: Marcel Hibbe <dev@mhibbe.de>
when adapter has no items adapter!!.items[1].item will crash with IndexOutOfBoundsException
This could happen e.g. when chat history is cleared.
error was:
Exception java.lang.IndexOutOfBoundsException: Index 1 out of bounds for length 0
at jdk.internal.util.Preconditions.outOfBounds (Preconditions.java:64)
at jdk.internal.util.Preconditions.outOfBoundsCheckIndex (Preconditions.java:70)
at jdk.internal.util.Preconditions.checkIndex (Preconditions.java:266)
at java.util.Objects.checkIndex (Objects.java:359)
at java.util.ArrayList.get (ArrayList.java:434)
at com.nextcloud.talk.chat.ChatActivity.processMessagesFromTheFuture (ChatActivity.kt:2666)
at com.nextcloud.talk.chat.ChatActivity.access$processMessagesFromTheFuture (ChatActivity.kt:209)
at com.nextcloud.talk.chat.ChatActivity$initObservers$12$1.invokeSuspend (ChatActivity.kt:875)
at com.nextcloud.talk.chat.ChatActivity$initObservers$12$1.invoke (Unknown Source:8)
at com.nextcloud.talk.chat.ChatActivity$initObservers$12$1.invoke (Unknown Source:4)
at kotlinx.coroutines.flow.FlowKt__TransformKt$onEach$$inlined$unsafeTransform$1$2.emit (Emitters.kt:219)
at kotlinx.coroutines.flow.FlowKt__ErrorsKt$catchImpl$2.emit (Errors.kt:154)
at kotlinx.coroutines.flow.FlowKt__TransformKt$onEach$$inlined$unsafeTransform$1$2.emit (Emitters.kt:220)
at kotlinx.coroutines.flow.SharedFlowImpl.collect$suspendImpl (SharedFlow.kt:392)
at kotlinx.coroutines.flow.SharedFlowImpl$collect$1.invokeSuspend (Unknown Source:15)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith (ContinuationImpl.kt:33)
at kotlinx.coroutines.DispatchedTask.run (DispatchedTask.kt:104)
at android.os.Handler.handleCallback (Handler.java:942)
at android.os.Handler.dispatchMessage (Handler.java:99)
at android.os.Looper.loopOnce (Looper.java:201)
at android.os.Looper.loop (Looper.java:288)
at android.app.ActivityThread.main (ActivityThread.java:7932)
at java.lang.reflect.Method.invoke
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:548)
at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:942)
Signed-off-by: Marcel Hibbe <dev@mhibbe.de>
When messages were sorted out in handleSystemMessages it can happen that the chatMessageList is empty. Because setUnreadMessageMarker accessed chatMessageList[0] this crashed.
This can happen e.g. when only a reaction to a chat message was made before opening the chat.
Exception java.lang.IndexOutOfBoundsException: Empty list doesn't contain element at index 0.
at kotlin.collections.EmptyList.get (Collections.kt:37)
at kotlin.collections.EmptyList.get (Collections.kt:25)
at com.nextcloud.talk.chat.ChatActivity.setUnreadMessageMarker (ChatActivity.kt:2691)
at com.nextcloud.talk.chat.ChatActivity.processMessagesFromTheFuture (ChatActivity.kt:2651)
at com.nextcloud.talk.chat.ChatActivity.access$processMessagesFromTheFuture (ChatActivity.kt:209)
at com.nextcloud.talk.chat.ChatActivity$initObservers$12$1.invokeSuspend (ChatActivity.kt:875)
at com.nextcloud.talk.chat.ChatActivity$initObservers$12$1.invoke (Unknown Source:8)
at com.nextcloud.talk.chat.ChatActivity$initObservers$12$1.invoke (Unknown Source:4)
at kotlinx.coroutines.flow.FlowKt__TransformKt$onEach$$inlined$unsafeTransform$1$2.emit (Emitters.kt:219)
at kotlinx.coroutines.flow.FlowKt__ErrorsKt$catchImpl$2.emit (Errors.kt:154)
at kotlinx.coroutines.flow.FlowKt__TransformKt$onEach$$inlined$unsafeTransform$1$2.emit (Emitters.kt:220)
at kotlinx.coroutines.flow.SharedFlowImpl.collect$suspendImpl (SharedFlow.kt:392)
at kotlinx.coroutines.flow.SharedFlowImpl$collect$1.invokeSuspend (Unknown Source:15)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith (ContinuationImpl.kt:33)
at kotlinx.coroutines.DispatchedTask.run (DispatchedTask.kt:104)
at android.os.Handler.handleCallback (Handler.java:942)
at android.os.Handler.dispatchMessage (Handler.java:99)
at android.os.Looper.loopOnce (Looper.java:226)
at android.os.Looper.loop (Looper.java:313)
at android.app.ActivityThread.main (ActivityThread.java:8762)
at java.lang.reflect.Method.invoke
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:604)
at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1067)
Signed-off-by: Marcel Hibbe <dev@mhibbe.de>
currentConversation was not yet initialized in ChatActivity.
In the future this may be better handled via StateFlows. For now it's solved via arguments.
Without the fix, this NPE appeared:
Exception java.lang.RuntimeException:
at android.app.ActivityThread.performResumeActivity (ActivityThread.java:4768)
at android.app.ActivityThread.handleResumeActivity (ActivityThread.java:4801)
at android.app.servertransaction.ResumeActivityItem.execute (ResumeActivityItem.java:54)
at android.app.servertransaction.ActivityTransactionItem.execute (ActivityTransactionItem.java:45)
at android.app.servertransaction.TransactionExecutor.executeLifecycleState (TransactionExecutor.java:176)
at android.app.servertransaction.TransactionExecutor.execute (TransactionExecutor.java:97)
at android.app.ActivityThread$H.handleMessage (ActivityThread.java:2215)
at android.os.Handler.dispatchMessage (Handler.java:106)
at android.os.Looper.loopOnce (Looper.java:346)
at android.os.Looper.loop (Looper.java:475)
at android.app.ActivityThread.main (ActivityThread.java:7889)
at java.lang.reflect.Method.invoke
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:548)
at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1009)
Caused by java.lang.NullPointerException:
at com.nextcloud.talk.chat.MessageInputFragment.onResume (MessageInputFragment.kt:146)
at androidx.fragment.app.Fragment.performResume (Fragment.java:3180)
at androidx.fragment.app.FragmentStateManager.resume (FragmentStateManager.java:606)
at androidx.fragment.app.FragmentStateManager.moveToExpectedState (FragmentStateManager.java:285)
at androidx.fragment.app.FragmentStore.moveToExpectedState (FragmentStore.java:113)
at androidx.fragment.app.FragmentManager.moveToState (FragmentManager.java:1433)
at androidx.fragment.app.FragmentManager.dispatchStateChange (FragmentManager.java:2977)
at androidx.fragment.app.FragmentManager.dispatchResume (FragmentManager.java:2909)
at androidx.fragment.app.FragmentController.dispatchResume (FragmentController.java:285)
at androidx.fragment.app.FragmentActivity.onResumeFragments (FragmentActivity.java:334)
at androidx.fragment.app.FragmentActivity.onPostResume (FragmentActivity.java:323)
at androidx.appcompat.app.AppCompatActivity.onPostResume (AppCompatActivity.java:245)
at android.app.Activity.performResume (Activity.java:8215)
at android.app.ActivityThread.performResumeActivity (ActivityThread.java:4758)
Signed-off-by: Marcel Hibbe <dev@mhibbe.de>
