Add our own API desugaring

Fix #8452

app/apk/build.gradle.kts

@@ -1,3 +1,6 @@
+import com.android.build.api.instrumentation.FramesComputationMode.COMPUTE_FRAMES_FOR_INSTRUMENTED_METHODS
+import com.android.build.api.instrumentation.InstrumentationScope
+
 plugins {
     id("com.android.application")
     kotlin("android")
@@ -46,6 +49,14 @@ android {
     compileOptions {
         isCoreLibraryDesugaringEnabled = true
     }
+
+    androidComponents {
+        onVariants {
+            it.instrumentation.setAsmFramesComputationMode(COMPUTE_FRAMES_FOR_INSTRUMENTED_METHODS)
+            it.instrumentation.transformClassesWith(
+                DesugarClassVisitorFactory::class.java, InstrumentationScope.ALL) {}
+        }
+    }
 }
 
 dependencies {

app/core/src/main/java/com/topjohnwu/magisk/core/utils/Desugar.java

@@ -0,0 +1,32 @@
+package com.topjohnwu.magisk.core.utils;
+
+import android.os.Build;
+
+import java.nio.file.attribute.FileTime;
+import java.util.zip.ZipEntry;
+
+public class Desugar {
+    public static FileTime getLastModifiedTime(ZipEntry entry) {
+        if (Build.VERSION.SDK_INT >= 26) {
+            return entry.getLastModifiedTime();
+        } else {
+            return FileTime.fromMillis(entry.getTime());
+        }
+    }
+
+    public static FileTime getLastAccessTime(ZipEntry entry) {
+        if (Build.VERSION.SDK_INT >= 26) {
+            return entry.getLastAccessTime();
+        } else {
+            return null;
+        }
+    }
+
+    public static FileTime getCreationTime(ZipEntry entry) {
+        if (Build.VERSION.SDK_INT >= 26) {
+            return entry.getCreationTime();
+        } else {
+            return null;
+        }
+    }
+}