react-native-ble-plx
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š Attempt to invoke virtual method 'java.lang.String com.bleplx.adapter.Service.getDeviceID()' on a null object reference
Prerequisites
- [X] I checked the documentation and FAQ without finding a solution
- [X] I checked to make sure that this issue has not already been filed
Expected Behavior
the app not to crash and cleanServicesAndCharacteristicsForDevice to be called successfully
Current Behavior
The app is crashig with above error. We havent seen it a lot and we have yet to reproduce on our own. Didn't happen on the v2.x
Library version
3.1.2-rc.0
Device
Galaxy Tab S6 Lite, Galaxy Tab A, Galaxy Tab S7 FE,Lenovo Tab M10 FHD Plus
Environment info
hermesEnabled:true
react native: "0.72.6"
Steps to reproduce
we have not yet reproduced on our side
Formatted code sample or link to a repository
-
Relevant log output
Caused by java.lang.NullPointerException
Attempt to invoke virtual method 'java.lang.String com.bleplx.adapter.Service.getDeviceID()' on a null object reference
com.bleplx.adapter.BleModule.cleanServicesAndCharacteristicsForDevice (BleModule.java:1548)
com.bleplx.adapter.BleModule.onDeviceDisconnected (BleModule.java:1286)
com.bleplx.adapter.BleModule.lambda$safeConnectToDevice$29$com-bleplx-adapter-BleModule (BleModule.java:1273)
com.bleplx.adapter.BleModule$$ExternalSyntheticLambda34.accept (Unknown Source:8)
io.reactivex.internal.observers.LambdaObserver.onError (LambdaObserver.java:77)
io.reactivex.internal.operators.observable.ObservableDoFinally$DoFinallyObserver.onError (ObservableDoFinally.java:85)
io.reactivex.internal.observers.DisposableLambdaObserver.onError (DisposableLambdaObserver.java:65)
io.reactivex.internal.operators.observable.ObservableDoFinally$DoFinallyObserver.onError (ObservableDoFinally.java:85)
io.reactivex.internal.operators.observable.ObservableUnsubscribeOn$UnsubscribeObserver.onError (ObservableUnsubscribeOn.java:70)
io.reactivex.internal.operators.observable.ObservableSubscribeOn$SubscribeOnObserver.onError (ObservableSubscribeOn.java:63)
io.reactivex.internal.operators.observable.ObservableDoFinally$DoFinallyObserver.onError (ObservableDoFinally.java:85)
io.reactivex.internal.observers.DisposableLambdaObserver.onError (DisposableLambdaObserver.java:65)
io.reactivex.internal.operators.observable.ObservableDelaySubscriptionOther$DelayObserver$OnComplete.onError (ObservableDelaySubscriptionOther.java:99)
io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.checkTerminate (ObservableFlatMap.java:496)
io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.drainLoop (ObservableFlatMap.java:334)
io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.drain (ObservableFlatMap.java:326)
io.reactivex.internal.operators.observable.ObservableFlatMap$InnerObserver.onError (ObservableFlatMap.java:575)
io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.checkTerminate (ObservableFlatMap.java:496)
io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.drainLoop (ObservableFlatMap.java:334)
io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.drain (ObservableFlatMap.java:326)
io.reactivex.internal.operators.observable.ObservableFlatMap$InnerObserver.onError (ObservableFlatMap.java:575)
io.reactivex.internal.disposables.EmptyDisposable.error (EmptyDisposable.java:63)
io.reactivex.internal.operators.observable.ObservableError.subscribeActual (ObservableError.java:38)
io.reactivex.Observable.subscribe (Observable.java:12284)
io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.subscribeInner (ObservableFlatMap.java:165)
io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.onNext (ObservableFlatMap.java:139)
io.reactivex.internal.util.NotificationLite.accept (NotificationLite.java:246)
io.reactivex.internal.operators.observable.ObservableReplay$UnboundedReplayBuffer.replay (ObservableReplay.java:553)
io.reactivex.internal.operators.observable.ObservableReplay$ReplayObserver.replay (ObservableReplay.java:401)
io.reactivex.internal.operators.observable.ObservableReplay$ReplayObserver.onNext (ObservableReplay.java:366)
io.reactivex.internal.operators.observable.ObservableDoOnEach$DoOnEachObserver.onNext (ObservableDoOnEach.java:101)
io.reactivex.internal.operators.observable.ObservableElementAt$ElementAtObserver.onNext (ObservableElementAt.java:86)
com.jakewharton.rxrelay2.BehaviorRelay$BehaviorDisposable.test (BehaviorRelay.java:364)
com.jakewharton.rxrelay2.BehaviorRelay$BehaviorDisposable.emitNext (BehaviorRelay.java:358)
com.jakewharton.rxrelay2.BehaviorRelay.accept (BehaviorRelay.java:135)
com.polidea.rxandroidble2.internal.connection.DisconnectionRouter.onDisconnectedException (DisconnectionRouter.java:110)
com.polidea.rxandroidble2.internal.connection.RxBleGattCallback$2.onConnectionStateChange (RxBleGattCallback.java:81)
android.bluetooth.BluetoothGatt$1$5.run (BluetoothGatt.java:346)
android.bluetooth.BluetoothGatt.runOrQueueCallback (BluetoothGatt.java:964)
android.bluetooth.BluetoothGatt.access$600 (BluetoothGatt.java:48)
android.bluetooth.BluetoothGatt$1.onClientConnectionState (BluetoothGatt.java:341)
android.bluetooth.IBluetoothGattCallback$Stub.onTransact (IBluetoothGattCallback.java:216)
android.os.Binder.execTransactInternal (Binder.java:1220)
android.os.Binder.execTransact (Binder.java:1179)
io.reactivex.internal.observers.LambdaObserver.onError (LambdaObserver.java:77)
io.reactivex.internal.operators.observable.ObservableDoFinally$DoFinallyObserver.onError (ObservableDoFinally.java:85)
io.reactivex.internal.observers.DisposableLambdaObserver.onError (DisposableLambdaObserver.java:65)
io.reactivex.internal.operators.observable.ObservableDoFinally$DoFinallyObserver.onError (ObservableDoFinally.java:85)
io.reactivex.internal.operators.observable.ObservableUnsubscribeOn$UnsubscribeObserver.onError (ObservableUnsubscribeOn.java:70)
io.reactivex.internal.operators.observable.ObservableSubscribeOn$SubscribeOnObserver.onError (ObservableSubscribeOn.java:63)
io.reactivex.internal.operators.observable.ObservableDoFinally$DoFinallyObserver.onError (ObservableDoFinally.java:85)
io.reactivex.internal.observers.DisposableLambdaObserver.onError (DisposableLambdaObserver.java:65)
io.reactivex.internal.operators.observable.ObservableDelaySubscriptionOther$DelayObserver$OnComplete.onError (ObservableDelaySubscriptionOther.java:99)
io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.checkTerminate (ObservableFlatMap.java:496)
io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.drainLoop (ObservableFlatMap.java:334)
io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.drain (ObservableFlatMap.java:326)
io.reactivex.internal.operators.observable.ObservableFlatMap$InnerObserver.onError (ObservableFlatMap.java:575)
io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.checkTerminate (ObservableFlatMap.java:496)
io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.drainLoop (ObservableFlatMap.java:334)
io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.drain (ObservableFlatMap.java:326)
io.reactivex.internal.operators.observable.ObservableFlatMap$InnerObserver.onError (ObservableFlatMap.java:575)
io.reactivex.internal.disposables.EmptyDisposable.error (EmptyDisposable.java:63)
io.reactivex.internal.operators.observable.ObservableError.subscribeActual (ObservableError.java:38)
io.reactivex.Observable.subscribe (Observable.java:12284)
io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.subscribeInner (ObservableFlatMap.java:165)
io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.onNext (ObservableFlatMap.java:139)
io.reactivex.internal.util.NotificationLite.accept (NotificationLite.java:246)
io.reactivex.internal.operators.observable.ObservableReplay$UnboundedReplayBuffer.replay (ObservableReplay.java:553)
io.reactivex.internal.operators.observable.ObservableReplay$ReplayObserver.replay (ObservableReplay.java:401)
io.reactivex.internal.operators.observable.ObservableReplay$ReplayObserver.onNext (ObservableReplay.java:366)
io.reactivex.internal.operators.observable.ObservableDoOnEach$DoOnEachObserver.onNext (ObservableDoOnEach.java:101)
io.reactivex.internal.operators.observable.ObservableElementAt$ElementAtObserver.onNext (ObservableElementAt.java:86)
com.jakewharton.rxrelay2.BehaviorRelay$BehaviorDisposable.test (BehaviorRelay.java:364)
com.jakewharton.rxrelay2.BehaviorRelay$BehaviorDisposable.emitNext (BehaviorRelay.java:358)
com.jakewharton.rxrelay2.BehaviorRelay.accept (BehaviorRelay.java:135)
com.polidea.rxandroidble2.internal.connection.DisconnectionRouter.onDisconnectedException (DisconnectionRouter.java:110)
com.polidea.rxandroidble2.internal.connection.RxBleGattCallback$2.onConnectionStateChange (RxBleGattCallback.java:81)
android.bluetooth.BluetoothGatt$1$5.run (BluetoothGatt.java:363)
android.bluetooth.BluetoothGatt.runOrQueueCallback (BluetoothGatt.java:1003)
android.bluetooth.BluetoothGatt.-$$Nest$mrunOrQueueCallback
android.bluetooth.BluetoothGatt$1.onClientConnectionState (BluetoothGatt.java:358)
android.bluetooth.IBluetoothGattCallback$Stub.onTransact (IBluetoothGattCallback.java:135)
android.os.Binder.execTransactInternal (Binder.java:1321)
android.os.Binder.execTransact (Binder.java:1280)
Additional information
No response
I get the same for .state(). Happens on google prelaunch for few devices. Not able to reproduce locally
11-29 09:23:45.549: E/AndroidRuntime(7426): java.lang.NullPointerException: Attempt to invoke interface method 'java.lang.String com.bleplx.adapter.BleAdapter.getCurrentState()' on a null object reference
Hi everyone
The issue with the NullPointerException was related to calling a method on non-existent objects. This has been resolved in version 3.2.0.
Iām closing the issue, in case of anyone with similar error please upgrade to at least 3.2.0 version
@intent-kacper-cyranowski @dominik-czupryna-withintent we did get again same error when upgrading to 3.5 from v2.
Caused by java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String com.bleplx.adapter.Service.getDeviceID()' on a null object reference
at com.bleplx.adapter.BleModule.cleanServicesAndCharacteristicsForDevice(BleModule.java:1569)
at com.bleplx.adapter.BleModule.onDeviceDisconnected(BleModule.java:1303)
at com.bleplx.adapter.BleModule.lambda$safeConnectToDevice$30$com-bleplx-adapter-BleModule(BleModule.java:1290)
at com.bleplx.adapter.BleModule$$ExternalSyntheticLambda35.accept(:8)
at io.reactivex.internal.observers.LambdaObserver.onError(LambdaObserver.java:77)
at io.reactivex.internal.operators.observable.ObservableDoFinally$DoFinallyObserver.onError(ObservableDoFinally.java:85)
at io.reactivex.internal.observers.DisposableLambdaObserver.onError(DisposableLambdaObserver.java:65)
at io.reactivex.internal.operators.observable.ObservableDoFinally$DoFinallyObserver.onError(ObservableDoFinally.java:85)
at io.reactivex.internal.operators.observable.ObservableUnsubscribeOn$UnsubscribeObserver.onError(ObservableUnsubscribeOn.java:70)
at io.reactivex.internal.operators.observable.ObservableSubscribeOn$SubscribeOnObserver.onError(ObservableSubscribeOn.java:63)
at io.reactivex.internal.operators.observable.ObservableDoFinally$DoFinallyObserver.onError(ObservableDoFinally.java:85)
at io.reactivex.internal.observers.DisposableLambdaObserver.onError(DisposableLambdaObserver.java:65)
at io.reactivex.internal.operators.observable.ObservableDelaySubscriptionOther$DelayObserver$OnComplete.onError(ObservableDelaySubscriptionOther.java:99)
at io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.checkTerminate(ObservableFlatMap.java:496)
at io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.drainLoop(ObservableFlatMap.java:334)
at io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.drain(ObservableFlatMap.java:326)
at io.reactivex.internal.operators.observable.ObservableFlatMap$InnerObserver.onError(ObservableFlatMap.java:575)
at io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.checkTerminate(ObservableFlatMap.java:496)
at io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.drainLoop(ObservableFlatMap.java:334)
at io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.drain(ObservableFlatMap.java:326)
at io.reactivex.internal.operators.observable.ObservableFlatMap$InnerObserver.onError(ObservableFlatMap.java:575)
at io.reactivex.internal.disposables.EmptyDisposable.error(EmptyDisposable.java:63)
at io.reactivex.internal.operators.observable.ObservableError.subscribeActual(ObservableError.java:38)
at io.reactivex.Observable.subscribe(Observable.java:12284)
at io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.subscribeInner(ObservableFlatMap.java:165)
at io.reactivex.internal.operators.observable.ObservableFlatMap$MergeObserver.onNext(ObservableFlatMap.java:139)
at io.reactivex.internal.util.NotificationLite.accept(NotificationLite.java:246)
at io.reactivex.internal.operators.observable.ObservableReplay$UnboundedReplayBuffer.replay(ObservableReplay.java:553)
at io.reactivex.internal.operators.observable.ObservableReplay$ReplayObserver.replay(ObservableReplay.java:401)
at io.reactivex.internal.operators.observable.ObservableReplay$ReplayObserver.onNext(ObservableReplay.java:366)
at io.reactivex.internal.operators.observable.ObservableDoOnEach$DoOnEachObserver.onNext(ObservableDoOnEach.java:101)
at io.reactivex.internal.operators.observable.ObservableElementAt$ElementAtObserver.onNext(ObservableElementAt.java:86)
at com.jakewharton.rxrelay2.BehaviorRelay$BehaviorDisposable.test(BehaviorRelay.java:364)
at com.jakewharton.rxrelay2.BehaviorRelay$BehaviorDisposable.emitNext(BehaviorRelay.java:358)
at com.jakewharton.rxrelay2.BehaviorRelay.accept(BehaviorRelay.java:135)
at com.polidea.rxandroidble2.internal.connection.DisconnectionRouter.onDisconnectedException(DisconnectionRouter.java:110)
at com.polidea.rxandroidble2.internal.connection.RxBleGattCallback$2.onConnectionStateChange(RxBleGattCallback.java:81)
at android.bluetooth.BluetoothGatt$1$4.run(BluetoothGatt.java:381)
at android.bluetooth.BluetoothGatt.runOrQueueCallback(BluetoothGatt.java:1068)
at android.bluetooth.BluetoothGatt.-$$Nest$mrunOrQueueCallback()
at android.bluetooth.BluetoothGatt$1.onClientConnectionState(BluetoothGatt.java:376)
at android.bluetooth.IBluetoothGattCallback$Stub.onTransact(IBluetoothGattCallback.java:226)
at android.os.Binder.execTransactInternal(Binder.java:1380)
at android.os.Binder.execTransact(Binder.java:1311)
Seems like the discoveredServices contain null services as values?
Maybe
for (BluetoothGattService gattService : rxBleDeviceServices.getBluetoothGattServices()) {
Service service = serviceFactory.create(device.getId(), gattService);
discoveredServices.put(service.getId(), service);
services.add(service);
here, in the initialization, getBluetoothGattServices contains null services?!
