TransactionTooLargeException during sync doesn't cause notification

[rfc2822]

Problem scope

• I'm sure that this is a DAVx⁵ problem.

App version

• I'm using the latest available DAVx⁵ version.

Android version and device/firmware type

No response

Steps to reproduce

1. Create event on server with very large (~ 1 MB) DESCRIPTION (for instance, big_text_input.txt from there).
2. Sync with DAVx5.

Actual result

No error message, event is silently ignored by DAVx5.

The expected IPC size exception is however logged:

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19:00:01.972 21634-23329 .BatchOperation                 D  #1: ContentProviderOperation(type=insert uri=content://com.android.calendar/extendedproperties?account_name=test%40example.com&account_type=bitfire.at.davdroid&caller_is_syncadapter=true values={name=vnd.android.cursor.item/vnd.ical4android.unknown-property, value=["CREATED","20241113T140548Z"], event_id=android.content.ContentProviderOperation$BackReference@1323255})
19:00:01.972 21634-23329 .BatchOperation                 D  Running 2 operations (0 .. 1)
19:00:01.976 21634-23329 IPCThreadState                  E  Binder transaction failure. id: 6195183, BR_*: 29201, error: -28 (No space left on device)
19:00:01.976 21634-23329 BpBinder                        W  Large outgoing transaction of 2209748 bytes, interface descriptor , code 20
19:00:01.977 21634-23329 JavaBinder                      E  !!! FAILED BINDER TRANSACTION !!!  (parcel size = 2209748)
19:00:01.978 21634-23329 .BatchOperation                 W  Transaction too large, splitting (losing atomicity)
19:00:01.978 21634-23329 .BatchOperation                 D  Running 1 operations (0 .. 0)
19:00:01.981 21634-23329 IPCThreadState                  E  Binder transaction failure. id: 6195188, BR_*: 29201, error: -28 (No space left on device)
19:00:01.981 21634-23329 BpBinder                        W  Large outgoing transaction of 2209168 bytes, interface descriptor , code 20
19:00:01.983 21634-23329 ActivityThread                  D  Too many transaction errors, throttling freezer binder callback.
19:00:01.983 21634-23329 JavaBinder                      E  !!! FAILED BINDER TRANSACTION !!!  (parcel size = 2209168)
19:00:01.985 21634-23329 .sync.SyncManager               E  Couldn't access local storage
                                                            at.bitfire.ical4android.CalendarStorageException: Can't transfer data to content provider (too large data row can't be split)
                                                            	at at.bitfire.ical4android.BatchOperation.runBatch(BatchOperation.kt:117)
                                                            	at at.bitfire.ical4android.BatchOperation.runBatch(BatchOperation.kt:122)
                                                            	at at.bitfire.ical4android.BatchOperation.commit(BatchOperation.kt:60)
                                                            	at at.bitfire.ical4android.AndroidEvent.add(AndroidEvent.kt:573)
                                                            	at at.bitfire.davdroid.sync.CalendarSyncManager.processVEvent$lambda$14$lambda$13(CalendarSyncManager.kt:281)
                                                            	at at.bitfire.davdroid.sync.CalendarSyncManager.$r8$lambda$43hNQxo5k52FeIcYrGMKqoDTstY(Unknown Source:0)
                                                            	at at.bitfire.davdroid.sync.CalendarSyncManager$$ExternalSyntheticLambda3.invoke(D8$$SyntheticClass:0)
                                                            	at at.bitfire.davdroid.sync.SyncException$Companion.wrapWithLocalResource(SyncException.kt:22)
                                                            	at at.bitfire.davdroid.sync.CalendarSyncManager.processVEvent$lambda$14(CalendarSyncManager.kt:280)
                                                            	at at.bitfire.davdroid.sync.CalendarSyncManager.$r8$lambda$HcVMg3PtuvbYvhpqtEeNUSVzbyE(Unknown Source:0)
                                                            	at at.bitfire.davdroid.sync.CalendarSyncManager$$ExternalSyntheticLambda1.invoke(D8$$SyntheticClass:0)
                                                            	at at.bitfire.davdroid.sync.SyncException$Companion.wrapWithLocalResource(SyncException.kt:22)
                                                            	at at.bitfire.davdroid.sync.CalendarSyncManager.processVEvent(CalendarSyncManager.kt:270)
                                                            	at at.bitfire.davdroid.sync.CalendarSyncManager.downloadRemote$lambda$11$lambda$10$lambda$9(CalendarSyncManager.kt:227)
                                                            	at at.bitfire.davdroid.sync.CalendarSyncManager.$r8$lambda$xBRNK6FZsxb0c35R_GMkb1qDT8A(Unknown Source:0)
                                                            	at at.bitfire.davdroid.sync.CalendarSyncManager$$ExternalSyntheticLambda5.invoke(D8$$SyntheticClass:0)
                                                            	at at.bitfire.davdroid.sync.SyncException$Companion.wrapWithRemoteResource(SyncException.kt:38)
                                                            	at at.bitfire.davdroid.sync.CalendarSyncManager.downloadRemote$lambda$11$lambda$10(CalendarSyncManager.kt:211)
                                                            	at at.bitfire.davdroid.sync.CalendarSyncManager.$r8$lambda$is9u8vJ7VzS62N-UVw4ofat62j4(Unknown Source:0)
                                                            	at at.bitfire.davdroid.sync.CalendarSyncManager$$ExternalSyntheticLambda0.onResponse(D8$$SyntheticClass:0)
                                                            	at at.bitfire.dav4jvm.Response$Companion.parse(Response.kt:220)
                                                            	at at.bitfire.dav4jvm.DavResource.processMultiStatus$parseMultiStatus(DavResource.kt:774)
                                                            	at at.bitfire.dav4jvm.DavResource.processMultiStatus(DavResource.kt:793)
                                                            	at at.bitfire.dav4jvm.DavResource.processMultiStatus(DavResource.kt:744)
                                                            	at at.bitfire.dav4jvm.DavCalendar.multiget(DavCalendar.kt:181)
                                                            	at at.bitfire.dav4jvm.DavCalendar.multiget$default(DavCalendar.kt:145)
                                                            	at at.bitfire.davdroid.sync.CalendarSyncManager.downloadRemote$lambda$11(CalendarSyncManager.kt:197)
                                                            	at at.bitfire.davdroid.sync.CalendarSyncManager.$r8$lambda$3MqIM-UjL7npA99FHS230pOYtbQ(Unknown Source:0)
                                                            	at at.bitfire.davdroid.sync.CalendarSyncManager$$ExternalSyntheticLambda2.invoke(D8$$SyntheticClass:0)
                                                            	at at.bitfire.davdroid.sync.SyncException$Companion.wrapWithRemoteResource(SyncException.kt:38)
                                                            	at at.bitfire.davdroid.sync.CalendarSyncManager.downloadRemote(CalendarSyncManager.kt:196)
                                                            	at at.bitfire.davdroid.sync.SyncManager$syncRemote$1$download$1.invokeSuspend(SyncManager.kt:602)
                                                            	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
                                                            	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:101)
                                                            	at kotlinx.coroutines.EventLoopImplBase.processNextEvent(EventLoop.common.kt:263)
                                                            	at kotlinx.coroutines.BlockingCoroutine.joinBlocking(Builders.kt:95)
                                                            	at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking(Builders.kt:69)
                                                            	at kotlinx.coroutines.BuildersKt.runBlocking(Unknown Source:1)
                                                            	at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking$default(Builders.kt:47)
                                                            	at kotlinx.coroutines.BuildersKt.runBlocking$default(Unknown Source:1)
                                                            	at at.bitfire.davdroid.sync.SyncManager.syncRemote(SyncManager.kt:590)
                                                            	at at.bitfire.davdroid.sync.SyncManager.performSync(SyncManager.kt:227)
                                                            	at at.bitfire.davdroid.sync.CalendarSyncer.syncCollection(CalendarSyncer.kt:68)
19:00:01.985 21634-23329 .sync.SyncManager               E  	at at.bitfire.davdroid.sync.CalendarSyncer.syncCollection(CalendarSyncer.kt:22)
                                                            	at at.bitfire.davdroid.sync.Syncer.syncCollectionContents$davx5_ose_4_4_4_alpha_1_oseDebug(Syncer.kt:208)
                                                            	at at.bitfire.davdroid.sync.Syncer.sync$davx5_ose_4_4_4_alpha_1_oseDebug(Syncer.kt:107)
                                                            	at at.bitfire.davdroid.sync.Syncer.invoke(Syncer.kt:272)
                                                            	at at.bitfire.davdroid.sync.worker.BaseSyncWorker$doSyncWork$2.invokeSuspend$lambda$0(BaseSyncWorker.kt:264)
                                                            	at at.bitfire.davdroid.sync.worker.BaseSyncWorker$doSyncWork$2.$r8$lambda$MnrEU1_WtQZTTPjmMRztfG3Y7fo(Unknown Source:0)
                                                            	at at.bitfire.davdroid.sync.worker.BaseSyncWorker$doSyncWork$2$$ExternalSyntheticLambda0.invoke(D8$$SyntheticClass:0)
                                                            	at kotlinx.coroutines.InterruptibleKt.runInterruptibleInExpectedContext(Interruptible.kt:48)
                                                            	at kotlinx.coroutines.InterruptibleKt.access$runInterruptibleInExpectedContext(Interruptible.kt:1)
                                                            	at kotlinx.coroutines.InterruptibleKt$runInterruptible$2.invokeSuspend(Interruptible.kt:40)
                                                            	at kotlinx.coroutines.InterruptibleKt$runInterruptible$2.invoke(Unknown Source:8)
                                                            	at kotlinx.coroutines.InterruptibleKt$runInterruptible$2.invoke(Unknown Source:4)
                                                            	at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndispatchedOrReturn(Undispatched.kt:42)
                                                            	at kotlinx.coroutines.BuildersKt__Builders_commonKt.withContext(Builders.common.kt:156)
                                                            	at kotlinx.coroutines.BuildersKt.withContext(Unknown Source:1)
                                                            	at kotlinx.coroutines.InterruptibleKt.runInterruptible(Interruptible.kt:39)
                                                            	at kotlinx.coroutines.InterruptibleKt.runInterruptible$default(Interruptible.kt:36)
                                                            	at at.bitfire.davdroid.sync.worker.BaseSyncWorker$doSyncWork$2.invokeSuspend(BaseSyncWorker.kt:263)
                                                            	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
                                                            	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:101)
                                                            	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
                                                            	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:644)
                                                            	at java.lang.Thread.run(Thread.java:1012)
                                                            Caused by: android.os.TransactionTooLargeException: data parcel size 2209168 bytes
                                                            	at android.os.BinderProxy.transactNative(Native Method)
                                                            	at android.os.BinderProxy.transact(BinderProxy.java:586)
                                                            	at android.content.ContentProviderProxy.applyBatch(ContentProviderNative.java:635)
                                                            	at android.content.ContentProviderClient.applyBatch(ContentProviderClient.java:574)
                                                            	at android.content.ContentProviderClient.applyBatch(ContentProviderClient.java:562)
                                                            	at at.bitfire.ical4android.BatchOperation.runBatch(BatchOperation.kt:100)
                                                            	... 65 more

Expected result

The exception should be shown as sync exception / notification.

Further info

No response

[rfc2822]

Seems the problem occurs because the failed event is put into the "local data" field of the exception notification, and this "local data" is of course also > 1 MB and causes another TransactionTooLargeException.

So showing the notification for TransactionTooLargeException causes another TransactionTooLargeException.