diff --git a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/room/model/relation/RelationService.kt b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/room/model/relation/RelationService.kt
index 4f28f7dce1..183cd481d2 100644
--- a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/room/model/relation/RelationService.kt
+++ b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/room/model/relation/RelationService.kt
@@ -146,9 +146,6 @@ interface RelationService {
                       formattedText: String? = null,
                       eventReplied: TimelineEvent? = null): Cancelable?
 
-
-
-
     /**
      * Get all the thread replies for the specified rootThreadEventId
      * The return list will contain the original root thread event and all the thread replies to that event
diff --git a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/RoomAPI.kt b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/RoomAPI.kt
index 2dd1871ac0..399bfbd0e4 100644
--- a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/RoomAPI.kt
+++ b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/RoomAPI.kt
@@ -227,7 +227,7 @@ internal interface RoomAPI {
                              @Path("eventId") eventId: String,
                              @Path("relationType") relationType: String,
                              @Path("eventType") eventType: String,
-                             @Query("limit") limit: Int?= null
+                             @Query("limit") limit: Int? = null
     ): RelationsResponse
 
     /**
@@ -377,5 +377,4 @@ internal interface RoomAPI {
     @GET(NetworkConstants.URI_API_PREFIX_PATH_UNSTABLE + "im.nheko.summary/rooms/{roomIdOrAlias}/summary")
     suspend fun getRoomSummary(@Path("roomIdOrAlias") roomidOrAlias: String,
                                @Query("via") viaServers: List<String>?): RoomStrippedState
-
 }
diff --git a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/relation/DefaultRelationService.kt b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/relation/DefaultRelationService.kt
index 2a6950d742..47794e424f 100644
--- a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/relation/DefaultRelationService.kt
+++ b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/relation/DefaultRelationService.kt
@@ -21,13 +21,10 @@ import com.zhuinden.monarchy.Monarchy
 import dagger.assisted.Assisted
 import dagger.assisted.AssistedFactory
 import dagger.assisted.AssistedInject
-import io.realm.Realm
 import org.matrix.android.sdk.api.MatrixCallback
-import org.matrix.android.sdk.api.session.crypto.MXCryptoError
 import org.matrix.android.sdk.api.session.events.model.Event
 import org.matrix.android.sdk.api.session.room.model.EventAnnotationsSummary
 import org.matrix.android.sdk.api.session.room.model.relation.RelationService
-import org.matrix.android.sdk.api.session.room.send.SendState
 import org.matrix.android.sdk.api.session.room.timeline.TimelineEvent
 import org.matrix.android.sdk.api.util.Cancelable
 import org.matrix.android.sdk.api.util.NoOpCancellable
@@ -35,34 +32,18 @@ import org.matrix.android.sdk.api.util.Optional
 import org.matrix.android.sdk.api.util.toOptional
 import org.matrix.android.sdk.internal.crypto.CryptoSessionInfoProvider
 import org.matrix.android.sdk.internal.crypto.DefaultCryptoService
-import org.matrix.android.sdk.internal.crypto.MXCRYPTO_ALGORITHM_MEGOLM
-import org.matrix.android.sdk.internal.crypto.algorithms.olm.OlmDecryptionResult
-import org.matrix.android.sdk.internal.database.helper.addTimelineEvent
-import org.matrix.android.sdk.internal.database.helper.updateThreadSummaryIfNeeded
 import org.matrix.android.sdk.internal.database.mapper.TimelineEventMapper
 import org.matrix.android.sdk.internal.database.mapper.asDomain
-import org.matrix.android.sdk.internal.database.mapper.toEntity
-import org.matrix.android.sdk.internal.database.model.ChunkEntity
-import org.matrix.android.sdk.internal.database.model.CurrentStateEventEntity
 import org.matrix.android.sdk.internal.database.model.EventAnnotationsSummaryEntity
-import org.matrix.android.sdk.internal.database.model.EventEntity
-import org.matrix.android.sdk.internal.database.model.EventInsertType
 import org.matrix.android.sdk.internal.database.model.TimelineEventEntity
-import org.matrix.android.sdk.internal.database.query.copyToRealmOrIgnore
-import org.matrix.android.sdk.internal.database.query.findIncludingEvent
-import org.matrix.android.sdk.internal.database.query.findLastForwardChunkOfRoom
-import org.matrix.android.sdk.internal.database.query.getOrCreate
 import org.matrix.android.sdk.internal.database.query.where
-import org.matrix.android.sdk.internal.di.MoshiProvider
 import org.matrix.android.sdk.internal.di.SessionDatabase
 import org.matrix.android.sdk.internal.di.UserId
 import org.matrix.android.sdk.internal.session.room.relation.threads.FetchThreadTimelineTask
 import org.matrix.android.sdk.internal.session.room.send.LocalEchoEventFactory
 import org.matrix.android.sdk.internal.session.room.send.queue.EventSenderProcessor
-import org.matrix.android.sdk.internal.session.room.timeline.PaginationDirection
 import org.matrix.android.sdk.internal.task.TaskExecutor
 import org.matrix.android.sdk.internal.task.configureWith
-import org.matrix.android.sdk.internal.util.awaitTransaction
 import org.matrix.android.sdk.internal.util.fetchCopyMap
 import timber.log.Timber
 
diff --git a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/timeline/DefaultTimeline.kt b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/timeline/DefaultTimeline.kt
index 72a922dc88..00e7510b00 100644
--- a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/timeline/DefaultTimeline.kt
+++ b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/timeline/DefaultTimeline.kt
@@ -53,7 +53,6 @@ import org.matrix.android.sdk.internal.util.Debouncer
 import org.matrix.android.sdk.internal.util.createBackgroundHandler
 import org.matrix.android.sdk.internal.util.createUIHandler
 import timber.log.Timber
-import java.lang.Thread.sleep
 import java.util.Collections
 import java.util.UUID
 import java.util.concurrent.CopyOnWriteArrayList
@@ -157,7 +156,6 @@ internal class DefaultTimeline(
             Timber.v("Start timeline for roomId: $roomId and eventId: $initialEventId")
             timelineInput.listeners.add(this)
             BACKGROUND_HANDLER.post {
-
                 eventDecryptor.start()
                 val realm = Realm.getInstance(realmConfiguration)
                 backgroundRealm.set(realm)
diff --git a/vector/src/main/java/im/vector/app/features/home/room/detail/timeline/factory/MergedHeaderItemFactory.kt b/vector/src/main/java/im/vector/app/features/home/room/detail/timeline/factory/MergedHeaderItemFactory.kt
index 874d8f0b1e..6ef8ba5a0f 100644
--- a/vector/src/main/java/im/vector/app/features/home/room/detail/timeline/factory/MergedHeaderItemFactory.kt
+++ b/vector/src/main/java/im/vector/app/features/home/room/detail/timeline/factory/MergedHeaderItemFactory.kt
@@ -83,7 +83,7 @@ class MergedHeaderItemFactory @Inject constructor(private val activeSessionHolde
                                                    eventIdToHighlight: String?,
                                                    requestModelBuild: () -> Unit,
                                                    callback: TimelineEventController.Callback?): MergedMembershipEventsItem_? {
-        val mergedEvents = timelineEventVisibilityHelper.prevSameTypeEvents(items, currentPosition, 2, eventIdToHighlight,partialState.rootThreadEventId, partialState.isFromThreadTimeline())
+        val mergedEvents = timelineEventVisibilityHelper.prevSameTypeEvents(items, currentPosition, 2, eventIdToHighlight, partialState.rootThreadEventId, partialState.isFromThreadTimeline())
         return if (mergedEvents.isEmpty()) {
             null
         } else {
diff --git a/vector/src/main/java/im/vector/app/features/home/room/detail/timeline/helper/TimelineEventVisibilityHelper.kt b/vector/src/main/java/im/vector/app/features/home/room/detail/timeline/helper/TimelineEventVisibilityHelper.kt
index 1ffd66c572..6d23d22ff0 100644
--- a/vector/src/main/java/im/vector/app/features/home/room/detail/timeline/helper/TimelineEventVisibilityHelper.kt
+++ b/vector/src/main/java/im/vector/app/features/home/room/detail/timeline/helper/TimelineEventVisibilityHelper.kt
@@ -157,8 +157,7 @@ class TimelineEventVisibilityHelper @Inject constructor(private val userPreferen
         }
 
         if (BuildConfig.THREADING_ENABLED && isFromThreadTimeline) {
-
-            ////
+            // //
             return if (root.getRootThreadEventId() == rootThreadEventId) {
                 false
             } else root.eventId != rootThreadEventId