Clear warnings

HMCLCore/src/main/kotlin/org/jackhuang/hmcl/game/GameVersion.kt

@@ -24,13 +24,10 @@ import java.util.zip.ZipEntry
 import java.util.zip.ZipFile
 import java.io.File
 
-private fun lessThan32(b: ByteArray, x: Int): Int {
-    var x = x
-    while (x < b.size) {
-        if (b[x] < 32)
-            return x
-        x++
-    }
+private fun lessThan32(b: ByteArray, startIndex: Int): Int {
+    for (i in startIndex until b.size)
+        if (b[i] < 32)
+            return i
     return -1
 }
 

HMCLCore/src/main/kotlin/org/jackhuang/hmcl/mod/ModInfo.kt

@@ -68,7 +68,7 @@ class ModInfo (
             val file = if (modFile.extension == DISABLED_EXTENSION)
                             modFile.absoluteFile.parentFile.resolve(modFile.nameWithoutExtension)
                         else modFile
-            var description = "Unrecognized mod file"
+            val description: String
             if (file.extension == "zip" || file.extension == "jar")
                 try {
                     return ForgeModMetadata.fromFile(modFile)

HMCLCore/src/main/kotlin/org/jackhuang/hmcl/task/Task.kt

@@ -113,6 +113,7 @@ abstract class Task {
     }
 
     fun executor() = TaskExecutor().submit(this)
+    fun executor(taskListener: TaskListener) = TaskExecutor().submit(this).apply { this.taskListener = taskListener }
 
     fun subscribe(subscriber: Task) = executor().apply {
         submit(subscriber).start()