diff --git a/ui/BankingUiCommon/src/main/java/net/dankito/banking/ui/presenter/BankingPresenter.kt b/ui/BankingUiCommon/src/main/java/net/dankito/banking/ui/presenter/BankingPresenter.kt
index 174c16a2..02e52161 100644
--- a/ui/BankingUiCommon/src/main/java/net/dankito/banking/ui/presenter/BankingPresenter.kt
+++ b/ui/BankingUiCommon/src/main/java/net/dankito/banking/ui/presenter/BankingPresenter.kt
@@ -14,7 +14,6 @@ import net.dankito.banking.ui.model.tan.EnterTanGeneratorAtcResult
 import net.dankito.banking.ui.model.tan.EnterTanResult
 import net.dankito.banking.ui.model.tan.TanChallenge
 import net.dankito.banking.ui.model.tan.TanGeneratorTanMedium
-import net.dankito.banking.util.IBankIconFinder
 import net.dankito.banking.bankfinder.IBankFinder
 import net.dankito.banking.bankfinder.BankInfo
 import net.dankito.banking.search.IRemitteeSearcher
@@ -23,16 +22,11 @@ import net.dankito.banking.ui.model.moneytransfer.ExtractTransferMoneyDataFromPd
 import net.dankito.banking.ui.model.moneytransfer.ExtractTransferMoneyDataFromPdfResultType
 import net.dankito.banking.ui.model.parameters.GetTransactionsParameter
 import net.dankito.banking.ui.model.settings.AppSettings
-import net.dankito.banking.util.CoroutinesAsyncRunner
-import net.dankito.banking.util.IAsyncRunner
+import net.dankito.banking.util.*
 import net.dankito.text.extraction.ITextExtractorRegistry
 import net.dankito.text.extraction.info.invoice.IInvoiceDataExtractor
 import net.dankito.text.extraction.info.invoice.InvoiceDataExtractor
 import net.dankito.text.extraction.model.ErrorType
-import net.dankito.utils.extensions.containsExactly
-import net.dankito.utils.extensions.ofMaxLength
-import net.dankito.utils.serialization.ISerializer
-import net.dankito.utils.serialization.JacksonJsonSerializer
 import org.slf4j.LoggerFactory
 import java.io.File
 import java.io.FileOutputStream
diff --git a/ui/BankingUiCommon/src/main/java/net/dankito/banking/util/Extensions.kt b/ui/BankingUiCommon/src/main/java/net/dankito/banking/util/Extensions.kt
new file mode 100644
index 00000000..1010a826
--- /dev/null
+++ b/ui/BankingUiCommon/src/main/java/net/dankito/banking/util/Extensions.kt
@@ -0,0 +1,29 @@
+package net.dankito.banking.util
+
+
+fun String.ofMaxLength(maxLength: Int): String {
+    if(this.length > maxLength && maxLength > 0) {
+        return this.substring(0, maxLength)
+    }
+
+    return this
+}
+
+
+fun <T> Collection<T>.containsExactly(vararg items: T): Boolean {
+    return containsExactly(items.toList())
+}
+
+fun <T> Collection<T>.containsExactly(otherCollection: Collection<T>): Boolean {
+    if (this.size != otherCollection.size) {
+        return false
+    }
+
+    for (otherItem in otherCollection) {
+        if (this.contains(otherItem) == false) {
+            return false
+        }
+    }
+
+    return true
+}
\ No newline at end of file
diff --git a/ui/BankingUiCommon/src/main/java/net/dankito/banking/util/ISerializer.kt b/ui/BankingUiCommon/src/main/java/net/dankito/banking/util/ISerializer.kt
new file mode 100644
index 00000000..197b187f
--- /dev/null
+++ b/ui/BankingUiCommon/src/main/java/net/dankito/banking/util/ISerializer.kt
@@ -0,0 +1,12 @@
+package net.dankito.banking.util
+
+import java.io.File
+
+
+interface ISerializer {
+
+    fun serializeObject(obj: Any, outputFile: File)
+
+    fun <T> deserializeObject(serializedObjectFile: File, objectClass: Class<T>, vararg genericParameterTypes: Class<*>): T?
+
+}
\ No newline at end of file
diff --git a/ui/BankingUiCommon/src/main/java/net/dankito/banking/util/JacksonJsonSerializer.kt b/ui/BankingUiCommon/src/main/java/net/dankito/banking/util/JacksonJsonSerializer.kt
new file mode 100644
index 00000000..0b9a01ef
--- /dev/null
+++ b/ui/BankingUiCommon/src/main/java/net/dankito/banking/util/JacksonJsonSerializer.kt
@@ -0,0 +1,20 @@
+package net.dankito.banking.util
+
+import net.dankito.utils.serialization.JacksonJsonSerializer
+import java.io.File
+
+
+open class JacksonJsonSerializer(
+    protected val serializer: net.dankito.utils.serialization.ISerializer = JacksonJsonSerializer()
+) : ISerializer {
+
+    override fun serializeObject(obj: Any, outputFile: File) {
+        return serializer.serializeObject(obj, outputFile)
+    }
+
+    override fun <T> deserializeObject(serializedObjectFile: File, objectClass: Class<T>,
+                                       vararg genericParameterTypes: Class<*>): T? {
+        return serializer.deserializeObject(serializedObjectFile, objectClass, *genericParameterTypes)
+    }
+
+}
\ No newline at end of file
diff --git a/ui/BankingUiCommon/src/main/java/net/dankito/banking/util/NoOpSerializer.kt b/ui/BankingUiCommon/src/main/java/net/dankito/banking/util/NoOpSerializer.kt
new file mode 100644
index 00000000..e0ecd084
--- /dev/null
+++ b/ui/BankingUiCommon/src/main/java/net/dankito/banking/util/NoOpSerializer.kt
@@ -0,0 +1,16 @@
+package net.dankito.banking.util
+
+import java.io.File
+
+
+open class NoOpSerializer : ISerializer {
+
+    override fun serializeObject(obj: Any, outputFile: File) {
+
+    }
+
+    override fun <T> deserializeObject(serializedObjectFile: File, objectClass: Class<T>, vararg genericParameterTypes: Class<*>): T? {
+        return null
+    }
+
+}
\ No newline at end of file