diff --git a/server/src/main/kotlin/suwayomi/tachidesk/InspectorMain.kt b/server/src/main/kotlin/suwayomi/tachidesk/InspectorMain.kt
index 8b26ef6..c29387a 100644
--- a/server/src/main/kotlin/suwayomi/tachidesk/InspectorMain.kt
+++ b/server/src/main/kotlin/suwayomi/tachidesk/InspectorMain.kt
@@ -1,5 +1,12 @@
 package suwayomi.tachidesk
 
+/*
+ * Copyright (C) Contributors to the Suwayomi project
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
 import eu.kanade.tachiyomi.source.CatalogueSource
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.encodeToString
diff --git a/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/extension/Extension.kt b/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/extension/Extension.kt
index 92c511e..f4b504c 100644
--- a/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/extension/Extension.kt
+++ b/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/extension/Extension.kt
@@ -54,7 +54,7 @@ object Extension {
 
         val className = packageInfo.packageName + packageInfo.applicationInfo.metaData.getString(METADATA_SOURCE_CLASS)
 
-        logger.debug("Main class for extension is $className")
+        logger.trace("Main class for extension is $className")
 
         dex2jar(apkFile, jarFile)
 
diff --git a/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/util/storage/OkioExtensions.kt b/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/util/storage/OkioExtensions.kt
deleted file mode 100644
index e69c640..0000000
--- a/server/src/main/kotlin/suwayomi/tachidesk/manga/impl/util/storage/OkioExtensions.kt
+++ /dev/null
@@ -1,48 +0,0 @@
-package suwayomi.tachidesk.manga.impl.util.storage
-
-/*
- * Copyright (C) Contributors to the Suwayomi project
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
-
-import okio.BufferedSource
-import okio.buffer
-import okio.sink
-import java.io.File
-import java.io.OutputStream
-
-// adopted from: https://github.com/tachiyomiorg/tachiyomi/blob/ff369010074b058bb734ce24c66508300e6e9ac6/app/src/main/java/eu/kanade/tachiyomi/util/storage/OkioExtensions.kt
-/**
- * Saves the given source to a file and closes it. Directories will be created if needed.
- *
- * @param file the file where the source is copied.
- */
-fun BufferedSource.saveTo(file: File) {
-    try {
-        // Create parent dirs if needed
-        file.parentFile.mkdirs()
-
-        // Copy to destination
-        saveTo(file.outputStream())
-    } catch (e: Exception) {
-        close()
-        file.delete()
-        throw e
-    }
-}
-
-/**
- * Saves the given source to an output stream and closes both resources.
- *
- * @param stream the stream where the source is copied.
- */
-fun BufferedSource.saveTo(stream: OutputStream) {
-    use { input ->
-        stream.sink().buffer().use {
-            it.writeAll(input)
-            it.flush()
-        }
-    }
-}