diff --git a/matrix-sdk-android/src/androidTest/java/im/vector/matrix/android/LiveDataTestObserver.java b/matrix-sdk-android/src/androidTest/java/im/vector/matrix/android/LiveDataTestObserver.java
index 512d9d0e..10d25135 100644
--- a/matrix-sdk-android/src/androidTest/java/im/vector/matrix/android/LiveDataTestObserver.java
+++ b/matrix-sdk-android/src/androidTest/java/im/vector/matrix/android/LiveDataTestObserver.java
@@ -16,10 +16,10 @@
 
 package im.vector.matrix.android;
 
+import androidx.annotation.Nullable;
 import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;
 import androidx.lifecycle.Observer;
-import androidx.annotation.Nullable;
 
 import java.util.ArrayList;
 import java.util.Collections;
diff --git a/matrix-sdk-android/src/androidTest/java/im/vector/matrix/android/session/room/timeline/ChunkEntityTest.kt b/matrix-sdk-android/src/androidTest/java/im/vector/matrix/android/session/room/timeline/ChunkEntityTest.kt
index be351fb0..c6da3c46 100644
--- a/matrix-sdk-android/src/androidTest/java/im/vector/matrix/android/session/room/timeline/ChunkEntityTest.kt
+++ b/matrix-sdk-android/src/androidTest/java/im/vector/matrix/android/session/room/timeline/ChunkEntityTest.kt
@@ -19,11 +19,7 @@ package im.vector.matrix.android.session.room.timeline
 import androidx.test.ext.junit.runners.AndroidJUnit4
 import com.zhuinden.monarchy.Monarchy
 import im.vector.matrix.android.InstrumentedTest
-import im.vector.matrix.android.internal.database.helper.add
-import im.vector.matrix.android.internal.database.helper.addAll
-import im.vector.matrix.android.internal.database.helper.isUnlinked
-import im.vector.matrix.android.internal.database.helper.lastStateIndex
-import im.vector.matrix.android.internal.database.helper.merge
+import im.vector.matrix.android.internal.database.helper.*
 import im.vector.matrix.android.internal.database.model.ChunkEntity
 import im.vector.matrix.android.internal.session.room.timeline.PaginationDirection
 import im.vector.matrix.android.session.room.timeline.RoomDataHelper.createFakeListOfEvents
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/permalinks/MatrixPermalinkSpan.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/permalinks/MatrixPermalinkSpan.kt
index bbef1d36..58cd76a0 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/permalinks/MatrixPermalinkSpan.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/permalinks/MatrixPermalinkSpan.kt
@@ -18,6 +18,7 @@ package im.vector.matrix.android.api.permalinks
 
 import android.text.style.ClickableSpan
 import android.view.View
+import im.vector.matrix.android.api.permalinks.MatrixPermalinkSpan.Callback
 
 /**
  * This MatrixPermalinkSpan is a clickable span which use a [Callback] to communicate back.
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/crypto/CryptoService.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/crypto/CryptoService.kt
index 8e933426..0397b514 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/crypto/CryptoService.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/crypto/CryptoService.kt
@@ -26,14 +26,12 @@ import im.vector.matrix.android.api.session.events.model.Content
 import im.vector.matrix.android.api.session.events.model.Event
 import im.vector.matrix.android.internal.crypto.MXEventDecryptionResult
 import im.vector.matrix.android.internal.crypto.NewSessionListener
-import im.vector.matrix.android.internal.crypto.attachments.ElementToDecrypt
 import im.vector.matrix.android.internal.crypto.model.ImportRoomKeysResult
 import im.vector.matrix.android.internal.crypto.model.MXDeviceInfo
 import im.vector.matrix.android.internal.crypto.model.MXEncryptEventContentResult
 import im.vector.matrix.android.internal.crypto.model.MXUsersDevicesMap
 import im.vector.matrix.android.internal.crypto.model.rest.DevicesListResponse
 import im.vector.matrix.android.internal.crypto.model.rest.RoomKeyRequestBody
-import java.io.File
 
 interface CryptoService {
 
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/room/timeline/TimelineEvent.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/room/timeline/TimelineEvent.kt
index ef2769d9..acab75df 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/room/timeline/TimelineEvent.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/api/session/room/timeline/TimelineEvent.kt
@@ -22,7 +22,6 @@ import im.vector.matrix.android.api.session.events.model.toModel
 import im.vector.matrix.android.api.session.room.model.EventAnnotationsSummary
 import im.vector.matrix.android.api.session.room.model.message.MessageContent
 import im.vector.matrix.android.api.session.room.model.message.isReply
-import im.vector.matrix.android.api.session.room.send.SendState
 import im.vector.matrix.android.api.util.ContentUtils.extractUsefulTextFromReply
 import im.vector.matrix.android.internal.crypto.model.event.EncryptedEventContent
 
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/db/SessionParamsMapper.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/db/SessionParamsMapper.kt
index 64303ea0..36a03ab1 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/db/SessionParamsMapper.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/auth/db/SessionParamsMapper.kt
@@ -20,7 +20,6 @@ import com.squareup.moshi.Moshi
 import im.vector.matrix.android.api.auth.data.Credentials
 import im.vector.matrix.android.api.auth.data.HomeServerConnectionConfig
 import im.vector.matrix.android.api.auth.data.SessionParams
-import im.vector.matrix.android.internal.di.MatrixScope
 import javax.inject.Inject
 
 internal class SessionParamsMapper @Inject constructor(moshi: Moshi) {
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/ObjectSigner.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/ObjectSigner.kt
index 7b8e0199..29e20290 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/ObjectSigner.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/ObjectSigner.kt
@@ -17,7 +17,6 @@
 package im.vector.matrix.android.internal.crypto
 
 import im.vector.matrix.android.api.auth.data.Credentials
-import im.vector.matrix.android.internal.session.SessionScope
 import java.util.*
 import javax.inject.Inject
 
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/actions/EnsureOlmSessionsForUsersAction.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/actions/EnsureOlmSessionsForUsersAction.kt
index ff0bcef3..840a66c5 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/actions/EnsureOlmSessionsForUsersAction.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/actions/EnsureOlmSessionsForUsersAction.kt
@@ -17,14 +17,11 @@
 package im.vector.matrix.android.internal.crypto.actions
 
 import android.text.TextUtils
-import arrow.core.Try
-import im.vector.matrix.android.api.MatrixCallback
 import im.vector.matrix.android.internal.crypto.MXOlmDevice
 import im.vector.matrix.android.internal.crypto.model.MXDeviceInfo
 import im.vector.matrix.android.internal.crypto.model.MXOlmSessionResult
 import im.vector.matrix.android.internal.crypto.model.MXUsersDevicesMap
 import im.vector.matrix.android.internal.crypto.store.IMXCryptoStore
-import im.vector.matrix.android.internal.session.SessionScope
 import timber.log.Timber
 import java.util.*
 import javax.inject.Inject
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/actions/MegolmSessionDataImporter.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/actions/MegolmSessionDataImporter.kt
index 918bdd73..9d345dfb 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/actions/MegolmSessionDataImporter.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/actions/MegolmSessionDataImporter.kt
@@ -26,7 +26,6 @@ import im.vector.matrix.android.internal.crypto.RoomDecryptorProvider
 import im.vector.matrix.android.internal.crypto.model.ImportRoomKeysResult
 import im.vector.matrix.android.internal.crypto.model.rest.RoomKeyRequestBody
 import im.vector.matrix.android.internal.crypto.store.IMXCryptoStore
-import im.vector.matrix.android.internal.session.SessionScope
 import timber.log.Timber
 import javax.inject.Inject
 
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/actions/SetDeviceVerificationAction.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/actions/SetDeviceVerificationAction.kt
index dfc54ffe..7fc39312 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/actions/SetDeviceVerificationAction.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/actions/SetDeviceVerificationAction.kt
@@ -19,7 +19,6 @@ package im.vector.matrix.android.internal.crypto.actions
 import im.vector.matrix.android.api.auth.data.Credentials
 import im.vector.matrix.android.internal.crypto.keysbackup.KeysBackup
 import im.vector.matrix.android.internal.crypto.store.IMXCryptoStore
-import im.vector.matrix.android.internal.session.SessionScope
 import timber.log.Timber
 import javax.inject.Inject
 
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/algorithms/IMXDecrypting.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/algorithms/IMXDecrypting.kt
index 32970f99..f63eaa93 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/algorithms/IMXDecrypting.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/algorithms/IMXDecrypting.kt
@@ -17,7 +17,6 @@
 
 package im.vector.matrix.android.internal.crypto.algorithms
 
-import arrow.core.Try
 import im.vector.matrix.android.api.session.events.model.Event
 import im.vector.matrix.android.internal.crypto.IncomingRoomKeyRequest
 import im.vector.matrix.android.internal.crypto.MXEventDecryptionResult
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/algorithms/megolm/MXMegolmDecryptionFactory.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/algorithms/megolm/MXMegolmDecryptionFactory.kt
index 43c485df..eb8df7b9 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/algorithms/megolm/MXMegolmDecryptionFactory.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/algorithms/megolm/MXMegolmDecryptionFactory.kt
@@ -24,7 +24,6 @@ import im.vector.matrix.android.internal.crypto.actions.EnsureOlmSessionsForDevi
 import im.vector.matrix.android.internal.crypto.actions.MessageEncrypter
 import im.vector.matrix.android.internal.crypto.store.IMXCryptoStore
 import im.vector.matrix.android.internal.crypto.tasks.SendToDeviceTask
-import im.vector.matrix.android.internal.session.SessionScope
 import im.vector.matrix.android.internal.util.MatrixCoroutineDispatchers
 import javax.inject.Inject
 
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/algorithms/olm/MXOlmDecryptionFactory.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/algorithms/olm/MXOlmDecryptionFactory.kt
index a8b4b1a0..afe4b36e 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/algorithms/olm/MXOlmDecryptionFactory.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/algorithms/olm/MXOlmDecryptionFactory.kt
@@ -18,7 +18,6 @@ package im.vector.matrix.android.internal.crypto.algorithms.olm
 
 import im.vector.matrix.android.api.auth.data.Credentials
 import im.vector.matrix.android.internal.crypto.MXOlmDevice
-import im.vector.matrix.android.internal.session.SessionScope
 import javax.inject.Inject
 
 internal class MXOlmDecryptionFactory @Inject constructor(private val olmDevice: MXOlmDevice,
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/algorithms/olm/MXOlmEncryptionFactory.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/algorithms/olm/MXOlmEncryptionFactory.kt
index 99ab8eda..eff833cf 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/algorithms/olm/MXOlmEncryptionFactory.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/algorithms/olm/MXOlmEncryptionFactory.kt
@@ -21,7 +21,6 @@ import im.vector.matrix.android.internal.crypto.MXOlmDevice
 import im.vector.matrix.android.internal.crypto.actions.EnsureOlmSessionsForUsersAction
 import im.vector.matrix.android.internal.crypto.actions.MessageEncrypter
 import im.vector.matrix.android.internal.crypto.store.IMXCryptoStore
-import im.vector.matrix.android.internal.session.SessionScope
 import im.vector.matrix.android.internal.util.MatrixCoroutineDispatchers
 import javax.inject.Inject
 
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/api/CryptoApi.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/api/CryptoApi.kt
index 23e5b466..263cfef2 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/api/CryptoApi.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/api/CryptoApi.kt
@@ -18,8 +18,6 @@ package im.vector.matrix.android.internal.crypto.api
 
 
 import im.vector.matrix.android.internal.crypto.model.rest.*
-import im.vector.matrix.android.internal.crypto.model.rest.KeysUploadBody
-import im.vector.matrix.android.internal.crypto.model.rest.SendToDeviceBody
 import im.vector.matrix.android.internal.network.NetworkConstants
 import retrofit2.Call
 import retrofit2.http.*
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/RealmCryptoStoreModule.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/RealmCryptoStoreModule.kt
index 96d69b7b..ff2f6cc4 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/RealmCryptoStoreModule.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/RealmCryptoStoreModule.kt
@@ -16,8 +16,8 @@
 
 package im.vector.matrix.android.internal.crypto.store.db
 
-import io.realm.annotations.RealmModule
 import im.vector.matrix.android.internal.crypto.store.db.model.*
+import io.realm.annotations.RealmModule
 
 /**
  * Realm module for Crypto store classes
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/CryptoMetadataEntity.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/CryptoMetadataEntity.kt
index 19cc06fa..2c96bb25 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/CryptoMetadataEntity.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/CryptoMetadataEntity.kt
@@ -16,10 +16,10 @@
 
 package im.vector.matrix.android.internal.crypto.store.db.model
 
-import io.realm.RealmObject
-import io.realm.annotations.PrimaryKey
 import im.vector.matrix.android.internal.crypto.store.db.deserializeFromRealm
 import im.vector.matrix.android.internal.crypto.store.db.serializeForRealm
+import io.realm.RealmObject
+import io.realm.annotations.PrimaryKey
 import org.matrix.olm.OlmAccount
 
 internal open class CryptoMetadataEntity(
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/DeviceInfoEntity.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/DeviceInfoEntity.kt
index d690073a..2c321cc5 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/DeviceInfoEntity.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/DeviceInfoEntity.kt
@@ -16,9 +16,9 @@
 
 package im.vector.matrix.android.internal.crypto.store.db.model
 
+import im.vector.matrix.android.internal.crypto.model.MXDeviceInfo
 import im.vector.matrix.android.internal.crypto.store.db.deserializeFromRealm
 import im.vector.matrix.android.internal.crypto.store.db.serializeForRealm
-import im.vector.matrix.android.internal.crypto.model.MXDeviceInfo
 import io.realm.RealmObject
 import io.realm.RealmResults
 import io.realm.annotations.LinkingObjects
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/OlmInboundGroupSessionEntity.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/OlmInboundGroupSessionEntity.kt
index d446f42a..4835300e 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/OlmInboundGroupSessionEntity.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/OlmInboundGroupSessionEntity.kt
@@ -16,11 +16,11 @@
 
 package im.vector.matrix.android.internal.crypto.store.db.model
 
-import io.realm.RealmObject
-import io.realm.annotations.PrimaryKey
+import im.vector.matrix.android.internal.crypto.model.OlmInboundGroupSessionWrapper
 import im.vector.matrix.android.internal.crypto.store.db.deserializeFromRealm
 import im.vector.matrix.android.internal.crypto.store.db.serializeForRealm
-import im.vector.matrix.android.internal.crypto.model.OlmInboundGroupSessionWrapper
+import io.realm.RealmObject
+import io.realm.annotations.PrimaryKey
 
 internal fun OlmInboundGroupSessionEntity.Companion.createPrimaryKey(sessionId: String?, senderKey: String?) = "$sessionId|$senderKey"
 
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/OlmSessionEntity.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/OlmSessionEntity.kt
index 4425cf33..dbc860ef 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/OlmSessionEntity.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/OlmSessionEntity.kt
@@ -16,10 +16,10 @@
 
 package im.vector.matrix.android.internal.crypto.store.db.model
 
-import io.realm.RealmObject
-import io.realm.annotations.PrimaryKey
 import im.vector.matrix.android.internal.crypto.store.db.deserializeFromRealm
 import im.vector.matrix.android.internal.crypto.store.db.serializeForRealm
+import io.realm.RealmObject
+import io.realm.annotations.PrimaryKey
 import org.matrix.olm.OlmSession
 
 internal fun OlmSessionEntity.Companion.createPrimaryKey(sessionId: String, deviceKey: String) = "$sessionId|$deviceKey"
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/OutgoingRoomKeyRequestEntity.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/OutgoingRoomKeyRequestEntity.kt
index cbbc2028..d4682858 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/OutgoingRoomKeyRequestEntity.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/OutgoingRoomKeyRequestEntity.kt
@@ -17,9 +17,9 @@
 package im.vector.matrix.android.internal.crypto.store.db.model
 
 import im.vector.matrix.android.internal.crypto.OutgoingRoomKeyRequest
+import im.vector.matrix.android.internal.crypto.model.rest.RoomKeyRequestBody
 import im.vector.matrix.android.internal.crypto.store.db.deserializeFromRealm
 import im.vector.matrix.android.internal.crypto.store.db.serializeForRealm
-import im.vector.matrix.android.internal.crypto.model.rest.RoomKeyRequestBody
 import io.realm.RealmObject
 import io.realm.annotations.PrimaryKey
 
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/query/DeviceInfoEntityQueries.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/query/DeviceInfoEntityQueries.kt
index 2aea3cd2..706815ff 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/query/DeviceInfoEntityQueries.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/query/DeviceInfoEntityQueries.kt
@@ -16,11 +16,11 @@
 
 package im.vector.matrix.android.internal.crypto.store.db.query
 
-import io.realm.Realm
-import io.realm.kotlin.where
 import im.vector.matrix.android.internal.crypto.store.db.model.DeviceInfoEntity
 import im.vector.matrix.android.internal.crypto.store.db.model.DeviceInfoEntityFields
 import im.vector.matrix.android.internal.crypto.store.db.model.createPrimaryKey
+import io.realm.Realm
+import io.realm.kotlin.where
 
 /**
  * Get or create a device info
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/query/UserEntitiesQueries.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/query/UserEntitiesQueries.kt
index dd5278ce..3860d8d8 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/query/UserEntitiesQueries.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/query/UserEntitiesQueries.kt
@@ -16,10 +16,10 @@
 
 package im.vector.matrix.android.internal.crypto.store.db.query
 
-import io.realm.Realm
-import io.realm.kotlin.where
 import im.vector.matrix.android.internal.crypto.store.db.model.UserEntity
 import im.vector.matrix.android.internal.crypto.store.db.model.UserEntityFields
+import io.realm.Realm
+import io.realm.kotlin.where
 
 /**
  * Get or create a user
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/RealmLiveEntityObserver.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/RealmLiveEntityObserver.kt
index af842c67..e78078f9 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/RealmLiveEntityObserver.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/RealmLiveEntityObserver.kt
@@ -18,12 +18,7 @@ package im.vector.matrix.android.internal.database
 
 import com.zhuinden.monarchy.Monarchy
 import im.vector.matrix.android.internal.util.createBackgroundHandler
-import io.realm.OrderedCollectionChangeSet
-import io.realm.OrderedRealmCollectionChangeListener
-import io.realm.Realm
-import io.realm.RealmConfiguration
-import io.realm.RealmObject
-import io.realm.RealmResults
+import io.realm.*
 import java.util.concurrent.atomic.AtomicBoolean
 import java.util.concurrent.atomic.AtomicReference
 
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/helper/TimelineEventEntityHelper.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/helper/TimelineEventEntityHelper.kt
index d700fdf3..f6bf258b 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/helper/TimelineEventEntityHelper.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/helper/TimelineEventEntityHelper.kt
@@ -20,11 +20,7 @@ import im.vector.matrix.android.api.session.events.model.EventType
 import im.vector.matrix.android.api.session.events.model.toModel
 import im.vector.matrix.android.api.session.room.model.RoomMember
 import im.vector.matrix.android.internal.database.mapper.ContentMapper
-import im.vector.matrix.android.internal.database.model.EventEntity
-import im.vector.matrix.android.internal.database.model.EventEntityFields
-import im.vector.matrix.android.internal.database.model.RoomEntity
-import im.vector.matrix.android.internal.database.model.TimelineEventEntity
-import im.vector.matrix.android.internal.database.model.TimelineEventEntityFields
+import im.vector.matrix.android.internal.database.model.*
 import im.vector.matrix.android.internal.database.query.next
 import im.vector.matrix.android.internal.database.query.prev
 import im.vector.matrix.android.internal.database.query.where
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/mapper/EventMapper.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/mapper/EventMapper.kt
index 0d76b548..4375a19d 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/mapper/EventMapper.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/mapper/EventMapper.kt
@@ -20,13 +20,10 @@ import com.squareup.moshi.JsonDataException
 import im.vector.matrix.android.api.session.crypto.MXCryptoError
 import im.vector.matrix.android.api.session.events.model.Event
 import im.vector.matrix.android.api.session.events.model.UnsignedData
-import im.vector.matrix.android.internal.crypto.MXEventDecryptionResult
-import im.vector.matrix.android.internal.crypto.algorithms.olm.MXOlmDecryption
 import im.vector.matrix.android.internal.crypto.algorithms.olm.OlmDecryptionResult
 import im.vector.matrix.android.internal.database.model.EventEntity
 import im.vector.matrix.android.internal.di.MoshiProvider
 import timber.log.Timber
-import java.util.*
 
 internal object EventMapper {
 
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/mapper/TimelineEventMapper.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/mapper/TimelineEventMapper.kt
index fa067999..61d5a601 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/mapper/TimelineEventMapper.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/mapper/TimelineEventMapper.kt
@@ -17,7 +17,6 @@
 package im.vector.matrix.android.internal.database.mapper
 
 import im.vector.matrix.android.api.session.events.model.Event
-import im.vector.matrix.android.api.session.room.send.SendState
 import im.vector.matrix.android.api.session.room.timeline.TimelineEvent
 import im.vector.matrix.android.internal.database.model.TimelineEventEntity
 
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/model/EventEntity.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/model/EventEntity.kt
index ab10297f..4401d394 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/model/EventEntity.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/model/EventEntity.kt
@@ -24,8 +24,6 @@ import io.realm.RealmObject
 import io.realm.RealmResults
 import io.realm.annotations.Index
 import io.realm.annotations.LinkingObjects
-import io.realm.annotations.PrimaryKey
-import java.util.*
 
 internal open class EventEntity(@Index var eventId: String = "",
                                 @Index var roomId: String = "",
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/query/TimelineEventEntityQueries.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/query/TimelineEventEntityQueries.kt
index cfa56914..5a48e022 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/query/TimelineEventEntityQueries.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/query/TimelineEventEntityQueries.kt
@@ -16,12 +16,8 @@
 
 package im.vector.matrix.android.internal.database.query
 
-import im.vector.matrix.android.internal.database.model.ChunkEntity
-import im.vector.matrix.android.internal.database.model.EventEntity
+import im.vector.matrix.android.internal.database.model.*
 import im.vector.matrix.android.internal.database.model.EventEntity.LinkFilterMode.*
-import im.vector.matrix.android.internal.database.model.RoomEntity
-import im.vector.matrix.android.internal.database.model.TimelineEventEntity
-import im.vector.matrix.android.internal.database.model.TimelineEventEntityFields
 import io.realm.Realm
 import io.realm.RealmList
 import io.realm.RealmQuery
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/di/MatrixComponent.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/di/MatrixComponent.kt
index ad03bbca..1627266c 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/di/MatrixComponent.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/di/MatrixComponent.kt
@@ -27,13 +27,11 @@ import im.vector.matrix.android.internal.SessionManager
 import im.vector.matrix.android.internal.auth.AuthModule
 import im.vector.matrix.android.internal.auth.SessionParamsStore
 import im.vector.matrix.android.internal.network.NetworkConnectivityChecker
-import im.vector.matrix.android.internal.network.RetrofitFactory
 import im.vector.matrix.android.internal.task.TaskExecutor
 import im.vector.matrix.android.internal.util.BackgroundDetectionObserver
 import im.vector.matrix.android.internal.util.MatrixCoroutineDispatchers
 import okhttp3.OkHttpClient
 import org.matrix.olm.OlmManager
-import retrofit2.Retrofit
 
 
 @Component(modules = [MatrixModule::class, NetworkModule::class, AuthModule::class])
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/network/ProgressRequestBody.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/network/ProgressRequestBody.kt
index fabd9763..49655ab4 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/network/ProgressRequestBody.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/network/ProgressRequestBody.kt
@@ -18,11 +18,7 @@ package im.vector.matrix.android.internal.network
 
 import okhttp3.MediaType
 import okhttp3.RequestBody
-import okio.Buffer
-import okio.BufferedSink
-import okio.ForwardingSink
-import okio.Okio
-import okio.Sink
+import okio.*
 import java.io.IOException
 
 internal class ProgressRequestBody(private val delegate: RequestBody,
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/network/RetrofitExtensions.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/network/RetrofitExtensions.kt
index 7528dee2..824d74b3 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/network/RetrofitExtensions.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/network/RetrofitExtensions.kt
@@ -19,7 +19,9 @@
 package im.vector.matrix.android.internal.network
 
 import kotlinx.coroutines.suspendCancellableCoroutine
-import retrofit2.*
+import retrofit2.Call
+import retrofit2.Callback
+import retrofit2.Response
 import kotlin.coroutines.resume
 import kotlin.coroutines.resumeWithException
 
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/network/RetrofitFactory.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/network/RetrofitFactory.kt
index 4e9ff6f9..70143f7c 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/network/RetrofitFactory.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/network/RetrofitFactory.kt
@@ -17,7 +17,6 @@
 package im.vector.matrix.android.internal.network
 
 import com.squareup.moshi.Moshi
-import okhttp3.Interceptor
 import okhttp3.OkHttpClient
 import retrofit2.Retrofit
 import retrofit2.converter.moshi.MoshiConverterFactory
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/SessionComponent.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/SessionComponent.kt
index 36f42895..26f43be0 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/SessionComponent.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/SessionComponent.kt
@@ -23,7 +23,6 @@ import im.vector.matrix.android.api.session.Session
 import im.vector.matrix.android.internal.crypto.CryptoModule
 import im.vector.matrix.android.internal.di.MatrixComponent
 import im.vector.matrix.android.internal.network.NetworkConnectivityChecker
-import im.vector.matrix.android.internal.session.user.accountdata.AccountDataModule
 import im.vector.matrix.android.internal.session.cache.CacheModule
 import im.vector.matrix.android.internal.session.content.ContentModule
 import im.vector.matrix.android.internal.session.content.UploadContentWorker
@@ -43,6 +42,7 @@ import im.vector.matrix.android.internal.session.sync.SyncTask
 import im.vector.matrix.android.internal.session.sync.SyncTokenStore
 import im.vector.matrix.android.internal.session.sync.job.SyncWorker
 import im.vector.matrix.android.internal.session.user.UserModule
+import im.vector.matrix.android.internal.session.user.accountdata.AccountDataModule
 import im.vector.matrix.android.internal.task.TaskExecutor
 
 @Component(dependencies = [MatrixComponent::class],
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/SessionModule.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/SessionModule.kt
index ca8461f1..38637fb7 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/SessionModule.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/SessionModule.kt
@@ -38,8 +38,8 @@ import im.vector.matrix.android.internal.network.RetrofitFactory
 import im.vector.matrix.android.internal.session.group.GroupSummaryUpdater
 import im.vector.matrix.android.internal.session.room.EventRelationsAggregationUpdater
 import im.vector.matrix.android.internal.session.room.create.RoomCreateEventLiveObserver
-import im.vector.matrix.android.internal.session.room.tombstone.RoomTombstoneEventLiveObserver
 import im.vector.matrix.android.internal.session.room.prune.EventsPruner
+import im.vector.matrix.android.internal.session.room.tombstone.RoomTombstoneEventLiveObserver
 import im.vector.matrix.android.internal.util.md5
 import io.realm.RealmConfiguration
 import okhttp3.OkHttpClient
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/cache/CacheModule.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/cache/CacheModule.kt
index b9449d0c..96f6fbd8 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/cache/CacheModule.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/cache/CacheModule.kt
@@ -21,7 +21,6 @@ import dagger.Module
 import dagger.Provides
 import im.vector.matrix.android.api.session.cache.CacheService
 import im.vector.matrix.android.internal.di.SessionDatabase
-import im.vector.matrix.android.internal.session.SessionScope
 import io.realm.RealmConfiguration
 
 @Module
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/group/DefaultGroupService.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/group/DefaultGroupService.kt
index ed0552da..a574df7c 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/group/DefaultGroupService.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/group/DefaultGroupService.kt
@@ -25,7 +25,6 @@ import im.vector.matrix.android.internal.database.mapper.asDomain
 import im.vector.matrix.android.internal.database.model.GroupSummaryEntity
 import im.vector.matrix.android.internal.database.model.GroupSummaryEntityFields
 import im.vector.matrix.android.internal.database.query.where
-import im.vector.matrix.android.internal.session.SessionScope
 import javax.inject.Inject
 
 internal class DefaultGroupService @Inject constructor(private val monarchy: Monarchy) : GroupService {
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/group/GroupSummaryUpdater.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/group/GroupSummaryUpdater.kt
index fcfe9f0a..47905ecc 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/group/GroupSummaryUpdater.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/group/GroupSummaryUpdater.kt
@@ -22,20 +22,15 @@ import androidx.work.WorkManager
 import com.zhuinden.monarchy.Monarchy
 import im.vector.matrix.android.api.auth.data.Credentials
 import im.vector.matrix.android.internal.database.RealmLiveEntityObserver
-import im.vector.matrix.android.internal.database.mapper.asDomain
-import im.vector.matrix.android.internal.database.model.EventEntity
 import im.vector.matrix.android.internal.database.model.GroupEntity
 import im.vector.matrix.android.internal.database.query.where
 import im.vector.matrix.android.internal.di.SessionDatabase
-import im.vector.matrix.android.internal.session.room.prune.PruneEventTask
-import im.vector.matrix.android.internal.task.configureWith
 import im.vector.matrix.android.internal.worker.WorkManagerUtil
 import im.vector.matrix.android.internal.worker.WorkManagerUtil.matrixOneTimeWorkRequestBuilder
 import im.vector.matrix.android.internal.worker.WorkerParamsFactory
 import io.realm.OrderedCollectionChangeSet
 import io.realm.RealmConfiguration
 import io.realm.RealmResults
-import timber.log.Timber
 import javax.inject.Inject
 
 private const val GET_GROUP_DATA_WORKER = "GET_GROUP_DATA_WORKER"
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/RoomFactory.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/RoomFactory.kt
index a310cc31..1c64c91b 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/RoomFactory.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/RoomFactory.kt
@@ -22,7 +22,6 @@ import im.vector.matrix.android.api.auth.data.Credentials
 import im.vector.matrix.android.api.session.crypto.CryptoService
 import im.vector.matrix.android.api.session.room.Room
 import im.vector.matrix.android.internal.database.mapper.RoomSummaryMapper
-import im.vector.matrix.android.internal.di.SessionDatabase
 import im.vector.matrix.android.internal.session.room.membership.DefaultMembershipService
 import im.vector.matrix.android.internal.session.room.membership.LoadRoomMembersTask
 import im.vector.matrix.android.internal.session.room.membership.joining.InviteTask
@@ -41,7 +40,6 @@ import im.vector.matrix.android.internal.session.room.timeline.DefaultTimelineSe
 import im.vector.matrix.android.internal.session.room.timeline.GetContextOfEventTask
 import im.vector.matrix.android.internal.session.room.timeline.PaginationTask
 import im.vector.matrix.android.internal.task.TaskExecutor
-import io.realm.RealmConfiguration
 import javax.inject.Inject
 
 internal class RoomFactory @Inject constructor(private val context: Context,
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/create/RoomCreateEventLiveObserver.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/create/RoomCreateEventLiveObserver.kt
index 9b652fe3..1bc6b965 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/create/RoomCreateEventLiveObserver.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/create/RoomCreateEventLiveObserver.kt
@@ -22,7 +22,6 @@ import im.vector.matrix.android.api.session.events.model.EventType
 import im.vector.matrix.android.api.session.events.model.toModel
 import im.vector.matrix.android.api.session.room.model.VersioningState
 import im.vector.matrix.android.api.session.room.model.create.RoomCreateContent
-import im.vector.matrix.android.api.session.room.model.tombstone.RoomTombstoneContent
 import im.vector.matrix.android.internal.database.RealmLiveEntityObserver
 import im.vector.matrix.android.internal.database.mapper.asDomain
 import im.vector.matrix.android.internal.database.model.EventEntity
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/membership/RoomDisplayNameResolver.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/membership/RoomDisplayNameResolver.kt
index 53e9e55a..815fc96e 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/membership/RoomDisplayNameResolver.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/membership/RoomDisplayNameResolver.kt
@@ -22,11 +22,7 @@ import im.vector.matrix.android.R
 import im.vector.matrix.android.api.auth.data.Credentials
 import im.vector.matrix.android.api.session.events.model.EventType
 import im.vector.matrix.android.api.session.events.model.toModel
-import im.vector.matrix.android.api.session.room.model.Membership
-import im.vector.matrix.android.api.session.room.model.RoomAliasesContent
-import im.vector.matrix.android.api.session.room.model.RoomCanonicalAliasContent
-import im.vector.matrix.android.api.session.room.model.RoomMember
-import im.vector.matrix.android.api.session.room.model.RoomNameContent
+import im.vector.matrix.android.api.session.room.model.*
 import im.vector.matrix.android.internal.database.mapper.asDomain
 import im.vector.matrix.android.internal.database.model.EventEntity
 import im.vector.matrix.android.internal.database.model.EventEntityFields
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/prune/EventsPruner.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/prune/EventsPruner.kt
index 91d3c4e7..c63733f3 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/prune/EventsPruner.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/prune/EventsPruner.kt
@@ -23,10 +23,7 @@ import im.vector.matrix.android.internal.database.RealmLiveEntityObserver
 import im.vector.matrix.android.internal.database.mapper.asDomain
 import im.vector.matrix.android.internal.database.model.EventEntity
 import im.vector.matrix.android.internal.database.query.types
-import im.vector.matrix.android.internal.database.query.where
 import im.vector.matrix.android.internal.di.SessionDatabase
-import im.vector.matrix.android.internal.session.SessionScope
-import im.vector.matrix.android.internal.session.room.EventRelationsAggregationTask
 import im.vector.matrix.android.internal.task.TaskExecutor
 import im.vector.matrix.android.internal.task.configureWith
 import io.realm.OrderedCollectionChangeSet
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/timeline/DefaultGetContextOfEventTask.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/timeline/DefaultGetContextOfEventTask.kt
index d59d6fc4..e4f48d35 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/timeline/DefaultGetContextOfEventTask.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/room/timeline/DefaultGetContextOfEventTask.kt
@@ -16,9 +16,7 @@
 
 package im.vector.matrix.android.internal.session.room.timeline
 
-import arrow.core.Try
 import im.vector.matrix.android.internal.network.executeRequest
-import im.vector.matrix.android.internal.session.SessionScope
 import im.vector.matrix.android.internal.session.filter.FilterRepository
 import im.vector.matrix.android.internal.session.room.RoomAPI
 import im.vector.matrix.android.internal.task.Task
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/sync/CryptoSyncHandler.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/sync/CryptoSyncHandler.kt
index cb102d5d..013fc3ca 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/sync/CryptoSyncHandler.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/sync/CryptoSyncHandler.kt
@@ -27,7 +27,6 @@ import im.vector.matrix.android.internal.crypto.MXEventDecryptionResult
 import im.vector.matrix.android.internal.crypto.algorithms.olm.OlmDecryptionResult
 import im.vector.matrix.android.internal.crypto.verification.DefaultSasVerificationService
 import im.vector.matrix.android.internal.session.DefaultInitialSyncProgressService
-import im.vector.matrix.android.internal.session.SessionScope
 import im.vector.matrix.android.internal.session.sync.model.SyncResponse
 import im.vector.matrix.android.internal.session.sync.model.ToDeviceSyncResponse
 import timber.log.Timber
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/sync/ReadReceiptHandler.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/sync/ReadReceiptHandler.kt
index 930f20f2..9ada6e71 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/sync/ReadReceiptHandler.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/sync/ReadReceiptHandler.kt
@@ -17,7 +17,6 @@
 package im.vector.matrix.android.internal.session.sync
 
 import im.vector.matrix.android.internal.database.model.ReadReceiptEntity
-import im.vector.matrix.android.internal.session.SessionScope
 import io.realm.Realm
 import timber.log.Timber
 import javax.inject.Inject
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/sync/RoomSyncHandler.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/sync/RoomSyncHandler.kt
index ae20fa68..9da3db76 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/sync/RoomSyncHandler.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/sync/RoomSyncHandler.kt
@@ -18,20 +18,13 @@ package im.vector.matrix.android.internal.session.sync
 
 import com.zhuinden.monarchy.Monarchy
 import im.vector.matrix.android.R
-import im.vector.matrix.android.api.auth.data.Credentials
 import im.vector.matrix.android.api.session.events.model.Event
 import im.vector.matrix.android.api.session.events.model.EventType
 import im.vector.matrix.android.api.session.events.model.toModel
 import im.vector.matrix.android.api.session.room.model.Membership
-import im.vector.matrix.android.api.session.room.model.RoomMember
 import im.vector.matrix.android.api.session.room.model.tag.RoomTagContent
 import im.vector.matrix.android.internal.crypto.CryptoManager
-import im.vector.matrix.android.internal.database.helper.add
-import im.vector.matrix.android.internal.database.helper.addOrUpdate
-import im.vector.matrix.android.internal.database.helper.addStateEvent
-import im.vector.matrix.android.internal.database.helper.lastStateIndex
-import im.vector.matrix.android.internal.database.helper.updateSenderDataFor
-import im.vector.matrix.android.internal.database.mapper.asDomain
+import im.vector.matrix.android.internal.database.helper.*
 import im.vector.matrix.android.internal.database.model.ChunkEntity
 import im.vector.matrix.android.internal.database.model.EventEntityFields
 import im.vector.matrix.android.internal.database.model.RoomEntity
@@ -43,13 +36,8 @@ import im.vector.matrix.android.internal.session.mapWithProgress
 import im.vector.matrix.android.internal.session.notification.DefaultPushRuleService
 import im.vector.matrix.android.internal.session.notification.ProcessEventForPushTask
 import im.vector.matrix.android.internal.session.room.RoomSummaryUpdater
-import im.vector.matrix.android.internal.session.room.membership.RoomMembers
 import im.vector.matrix.android.internal.session.room.timeline.PaginationDirection
-import im.vector.matrix.android.internal.session.sync.model.InvitedRoomSync
-import im.vector.matrix.android.internal.session.sync.model.RoomSync
-import im.vector.matrix.android.internal.session.sync.model.RoomSyncAccountData
-import im.vector.matrix.android.internal.session.sync.model.RoomSyncEphemeral
-import im.vector.matrix.android.internal.session.sync.model.RoomsSyncResponse
+import im.vector.matrix.android.internal.session.sync.model.*
 import im.vector.matrix.android.internal.session.user.UserEntityFactory
 import im.vector.matrix.android.internal.task.TaskExecutor
 import im.vector.matrix.android.internal.task.configureWith
@@ -66,7 +54,6 @@ internal class RoomSyncHandler @Inject constructor(private val monarchy: Monarch
                                                    private val tokenStore: SyncTokenStore,
                                                    private val pushRuleService: DefaultPushRuleService,
                                                    private val processForPushTask: ProcessEventForPushTask,
-                                                   private val credentials: Credentials,
                                                    private val taskExecutor: TaskExecutor) {
 
     sealed class HandlingStrategy {
@@ -130,7 +117,7 @@ internal class RoomSyncHandler @Inject constructor(private val monarchy: Monarch
         Timber.v("Handle join sync for room $roomId")
 
         val roomEntity = RoomEntity.where(realm, roomId).findFirst()
-                         ?: realm.createObject(roomId)
+                ?: realm.createObject(roomId)
 
         if (roomEntity.membership == Membership.INVITE) {
             roomEntity.chunks.deleteAllFromRealm()
@@ -140,7 +127,7 @@ internal class RoomSyncHandler @Inject constructor(private val monarchy: Monarch
         // State event
         if (roomSync.state != null && roomSync.state.events.isNotEmpty()) {
             val minStateIndex = roomEntity.untimelinedStateEvents.where().min(EventEntityFields.STATE_INDEX)?.toInt()
-                                ?: Int.MIN_VALUE
+                    ?: Int.MIN_VALUE
             val untimelinedStateIndex = minStateIndex + 1
             roomSync.state.events.forEach { event ->
                 roomEntity.addStateEvent(event, filterDuplicates = true, stateIndex = untimelinedStateIndex)
@@ -180,7 +167,7 @@ internal class RoomSyncHandler @Inject constructor(private val monarchy: Monarch
                                   InvitedRoomSync): RoomEntity {
         Timber.v("Handle invited sync for room $roomId")
         val roomEntity = RoomEntity.where(realm, roomId).findFirst()
-                         ?: realm.createObject(roomId)
+                ?: realm.createObject(roomId)
         roomEntity.membership = Membership.INVITE
         if (roomSync.inviteState != null && roomSync.inviteState.events.isNotEmpty()) {
             val chunkEntity = handleTimelineEvents(realm, roomEntity, roomSync.inviteState.events)
@@ -194,7 +181,7 @@ internal class RoomSyncHandler @Inject constructor(private val monarchy: Monarch
                                roomId: String,
                                roomSync: RoomSync): RoomEntity {
         val roomEntity = RoomEntity.where(realm, roomId).findFirst()
-                         ?: realm.createObject(roomId)
+                ?: realm.createObject(roomId)
 
         roomEntity.membership = Membership.LEAVE
         roomEntity.chunks.deleteAllFromRealm()
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/sync/RoomTagHandler.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/sync/RoomTagHandler.kt
index 49038eed..a3c00e43 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/sync/RoomTagHandler.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/sync/RoomTagHandler.kt
@@ -20,7 +20,6 @@ import im.vector.matrix.android.api.session.room.model.tag.RoomTagContent
 import im.vector.matrix.android.internal.database.model.RoomSummaryEntity
 import im.vector.matrix.android.internal.database.model.RoomTagEntity
 import im.vector.matrix.android.internal.database.query.where
-import im.vector.matrix.android.internal.session.SessionScope
 import io.realm.Realm
 import java.util.*
 import javax.inject.Inject
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/sync/SyncResponseHandler.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/sync/SyncResponseHandler.kt
index b49b787f..fafa758c 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/sync/SyncResponseHandler.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/sync/SyncResponseHandler.kt
@@ -17,23 +17,11 @@
 package im.vector.matrix.android.internal.session.sync
 
 import arrow.core.Try
-import com.zhuinden.monarchy.Monarchy
 import im.vector.matrix.android.R
-import im.vector.matrix.android.api.auth.data.Credentials
-import im.vector.matrix.android.api.session.events.model.toModel
-import im.vector.matrix.android.api.session.room.model.RoomMember
 import im.vector.matrix.android.internal.crypto.CryptoManager
-import im.vector.matrix.android.internal.database.mapper.asDomain
-import im.vector.matrix.android.internal.database.model.RoomSummaryEntity
-import im.vector.matrix.android.internal.database.query.isDirect
 import im.vector.matrix.android.internal.session.DefaultInitialSyncProgressService
 import im.vector.matrix.android.internal.session.reportSubtask
-import im.vector.matrix.android.internal.session.room.membership.RoomMembers
 import im.vector.matrix.android.internal.session.sync.model.SyncResponse
-import im.vector.matrix.android.internal.session.user.accountdata.DirectChatsHelper
-import im.vector.matrix.android.internal.session.user.accountdata.UpdateUserAccountDataTask
-import im.vector.matrix.android.internal.task.TaskExecutor
-import im.vector.matrix.android.internal.task.configureWith
 import timber.log.Timber
 import javax.inject.Inject
 import kotlin.system.measureTimeMillis
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/user/UserModule.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/user/UserModule.kt
index 46ae4e38..a31dc137 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/user/UserModule.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/user/UserModule.kt
@@ -21,7 +21,6 @@ import dagger.Module
 import dagger.Provides
 import im.vector.matrix.android.api.session.user.UserService
 import im.vector.matrix.android.internal.session.SessionScope
-import im.vector.matrix.android.internal.session.sync.SyncAPI
 import im.vector.matrix.android.internal.session.user.model.DefaultSearchUserTask
 import im.vector.matrix.android.internal.session.user.model.SearchUserTask
 import retrofit2.Retrofit
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/user/accountdata/DirectChatsHelper.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/user/accountdata/DirectChatsHelper.kt
index 8d23a988..b4b14387 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/user/accountdata/DirectChatsHelper.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/user/accountdata/DirectChatsHelper.kt
@@ -21,7 +21,6 @@ import im.vector.matrix.android.internal.database.query.getDirectRooms
 import im.vector.matrix.android.internal.di.SessionDatabase
 import io.realm.Realm
 import io.realm.RealmConfiguration
-import timber.log.Timber
 import javax.inject.Inject
 
 internal class DirectChatsHelper @Inject constructor(@SessionDatabase
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/util/StringProvider.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/util/StringProvider.kt
index 479412cf..a9053865 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/util/StringProvider.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/util/StringProvider.kt
@@ -20,9 +20,7 @@ import android.content.res.Resources
 import androidx.annotation.NonNull
 import androidx.annotation.StringRes
 import dagger.Reusable
-import im.vector.matrix.android.internal.di.MatrixScope
 import javax.inject.Inject
-import javax.inject.Singleton
 
 @Reusable
 internal class StringProvider @Inject constructor(private val resources: Resources) {
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/worker/MatrixWorkerFactory.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/worker/MatrixWorkerFactory.kt
index ca0ddd04..3a676d30 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/worker/MatrixWorkerFactory.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/worker/MatrixWorkerFactory.kt
@@ -20,7 +20,6 @@ import android.content.Context
 import androidx.work.ListenableWorker
 import androidx.work.WorkerFactory
 import androidx.work.WorkerParameters
-import im.vector.matrix.android.internal.di.MatrixScope
 import javax.inject.Inject
 import javax.inject.Provider