diff --git a/app/src/main/java/com/topjohnwu/magisk/App.java b/app/src/main/java/com/topjohnwu/magisk/App.java
new file mode 100644
index 000000000..e69de29bb
diff --git a/app/src/main/java/com/topjohnwu/magisk/model/adapters/ReposAdapter.java b/app/src/main/java/com/topjohnwu/magisk/model/adapters/ReposAdapter.java
index 31a932188..268afac01 100644
--- a/app/src/main/java/com/topjohnwu/magisk/model/adapters/ReposAdapter.java
+++ b/app/src/main/java/com/topjohnwu/magisk/model/adapters/ReposAdapter.java
@@ -13,6 +13,8 @@ import android.widget.ImageView;
 import android.widget.SearchView;
 import android.widget.TextView;
 
+import androidx.recyclerview.widget.RecyclerView;
+
 import com.topjohnwu.magisk.App;
 import com.topjohnwu.magisk.ClassMap;
 import com.topjohnwu.magisk.R;
@@ -31,7 +33,6 @@ import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 
-import androidx.recyclerview.widget.RecyclerView;
 import butterknife.BindView;
 import java9.util.stream.StreamSupport;
 
diff --git a/app/src/main/java/com/topjohnwu/magisk/model/update/UpdateCheckService.java b/app/src/main/java/com/topjohnwu/magisk/model/update/UpdateCheckService.java
index 87c6544ef..c51378d6b 100644
--- a/app/src/main/java/com/topjohnwu/magisk/model/update/UpdateCheckService.java
+++ b/app/src/main/java/com/topjohnwu/magisk/model/update/UpdateCheckService.java
@@ -1,5 +1,8 @@
 package com.topjohnwu.magisk.model.update;
 
+import androidx.annotation.NonNull;
+import androidx.work.ListenableWorker;
+
 import com.topjohnwu.magisk.App;
 import com.topjohnwu.magisk.BuildConfig;
 import com.topjohnwu.magisk.Config;
@@ -8,9 +11,6 @@ import com.topjohnwu.magisk.tasks.CheckUpdates;
 import com.topjohnwu.magisk.view.Notifications;
 import com.topjohnwu.superuser.Shell;
 
-import androidx.annotation.NonNull;
-import androidx.work.ListenableWorker;
-
 public class UpdateCheckService extends DelegateWorker {
 
     @NonNull
diff --git a/app/src/main/java/com/topjohnwu/magisk/ui/SplashActivity.java b/app/src/main/java/com/topjohnwu/magisk/ui/SplashActivity.java
index ee0d8014d..09732bb8d 100644
--- a/app/src/main/java/com/topjohnwu/magisk/ui/SplashActivity.java
+++ b/app/src/main/java/com/topjohnwu/magisk/ui/SplashActivity.java
@@ -5,6 +5,8 @@ import android.content.pm.PackageManager;
 import android.os.Bundle;
 import android.text.TextUtils;
 
+import androidx.appcompat.app.AlertDialog;
+
 import com.topjohnwu.magisk.BuildConfig;
 import com.topjohnwu.magisk.ClassMap;
 import com.topjohnwu.magisk.Config;
@@ -21,8 +23,6 @@ import com.topjohnwu.magisk.view.Shortcuts;
 import com.topjohnwu.net.Networking;
 import com.topjohnwu.superuser.Shell;
 
-import androidx.appcompat.app.AlertDialog;
-
 public class SplashActivity extends BaseActivity {
 
     public static boolean DONE = false;
diff --git a/app/src/main/java/com/topjohnwu/magisk/ui/flash/FlashActivity.java b/app/src/main/java/com/topjohnwu/magisk/ui/flash/FlashActivity.java
index 741050e77..ba1c54aa1 100644
--- a/app/src/main/java/com/topjohnwu/magisk/ui/flash/FlashActivity.java
+++ b/app/src/main/java/com/topjohnwu/magisk/ui/flash/FlashActivity.java
@@ -8,6 +8,11 @@ import android.widget.Button;
 import android.widget.LinearLayout;
 import android.widget.Toast;
 
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.widget.Toolbar;
+import androidx.recyclerview.widget.RecyclerView;
+
 import com.topjohnwu.magisk.Const;
 import com.topjohnwu.magisk.R;
 import com.topjohnwu.magisk.model.adapters.StringListAdapter;
@@ -29,10 +34,6 @@ import java.util.Collections;
 import java.util.List;
 import java.util.Locale;
 
-import androidx.annotation.NonNull;
-import androidx.appcompat.app.ActionBar;
-import androidx.appcompat.widget.Toolbar;
-import androidx.recyclerview.widget.RecyclerView;
 import butterknife.BindColor;
 import butterknife.BindView;
 import butterknife.OnClick;
diff --git a/app/src/main/java/com/topjohnwu/magisk/ui/log/LogFragment.java b/app/src/main/java/com/topjohnwu/magisk/ui/log/LogFragment.java
index 871563a0b..538a42d8e 100644
--- a/app/src/main/java/com/topjohnwu/magisk/ui/log/LogFragment.java
+++ b/app/src/main/java/com/topjohnwu/magisk/ui/log/LogFragment.java
@@ -6,12 +6,13 @@ import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
+import androidx.viewpager.widget.ViewPager;
+
 import com.google.android.material.tabs.TabLayout;
 import com.topjohnwu.magisk.R;
 import com.topjohnwu.magisk.model.adapters.TabFragmentAdapter;
 import com.topjohnwu.magisk.ui.base.BaseFragment;
 
-import androidx.viewpager.widget.ViewPager;
 import butterknife.BindView;
 
 public class LogFragment extends BaseFragment {
diff --git a/app/src/main/java/com/topjohnwu/magisk/ui/surequest/SuRequestActivity.java b/app/src/main/java/com/topjohnwu/magisk/ui/surequest/SuRequestActivity.java
index 674f62c44..d7726bf85 100644
--- a/app/src/main/java/com/topjohnwu/magisk/ui/surequest/SuRequestActivity.java
+++ b/app/src/main/java/com/topjohnwu/magisk/ui/surequest/SuRequestActivity.java
@@ -17,6 +17,9 @@ import android.widget.LinearLayout;
 import android.widget.Spinner;
 import android.widget.TextView;
 
+import androidx.annotation.Nullable;
+import androidx.appcompat.content.res.AppCompatResources;
+
 import com.topjohnwu.magisk.App;
 import com.topjohnwu.magisk.BuildConfig;
 import com.topjohnwu.magisk.Config;
@@ -31,8 +34,6 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 
-import androidx.annotation.Nullable;
-import androidx.appcompat.content.res.AppCompatResources;
 import butterknife.BindView;
 import java9.lang.Iterables;
 
diff --git a/app/src/main/java/com/topjohnwu/magisk/utils/ValueSortedMap.java b/app/src/main/java/com/topjohnwu/magisk/utils/ValueSortedMap.java
index babd8ba79..ff19f1aa3 100644
--- a/app/src/main/java/com/topjohnwu/magisk/utils/ValueSortedMap.java
+++ b/app/src/main/java/com/topjohnwu/magisk/utils/ValueSortedMap.java
@@ -1,5 +1,7 @@
 package com.topjohnwu.magisk.utils;
 
+import androidx.annotation.NonNull;
+
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
@@ -7,8 +9,6 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
-import androidx.annotation.NonNull;
-
 public class ValueSortedMap<K, V extends Comparable<? super V>> extends HashMap<K, V> {
 
     private List<V> sorted = new ArrayList<>();
diff --git a/app/src/main/java/com/topjohnwu/magisk/view/dialogs/ManagerInstallDialog.java b/app/src/main/java/com/topjohnwu/magisk/view/dialogs/ManagerInstallDialog.java
index debb76719..4863f0daa 100644
--- a/app/src/main/java/com/topjohnwu/magisk/view/dialogs/ManagerInstallDialog.java
+++ b/app/src/main/java/com/topjohnwu/magisk/view/dialogs/ManagerInstallDialog.java
@@ -3,14 +3,14 @@ package com.topjohnwu.magisk.view.dialogs;
 import android.app.Activity;
 import android.text.TextUtils;
 
+import androidx.annotation.NonNull;
+
 import com.topjohnwu.magisk.Config;
 import com.topjohnwu.magisk.R;
 import com.topjohnwu.magisk.utils.DownloadApp;
 import com.topjohnwu.magisk.utils.Utils;
 import com.topjohnwu.magisk.view.MarkDownWindow;
 
-import androidx.annotation.NonNull;
-
 public class ManagerInstallDialog extends CustomAlertDialog {
 
     public ManagerInstallDialog(@NonNull Activity a) {
diff --git a/build.gradle b/build.gradle
index e7e0d303f..8840dd836 100644
--- a/build.gradle
+++ b/build.gradle
@@ -15,8 +15,9 @@ buildscript {
     }
     dependencies {
         classpath 'com.android.tools:r8:1.4.79'
-        classpath 'com.android.tools.build:gradle:3.3.2'
-        classpath 'org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.30'
+        classpath 'com.android.tools.build:gradle:3.5.0-alpha10'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.30"
+
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
diff --git a/native/jni/magiskhide/proc_monitor.cpp b/native/jni/magiskhide/proc_monitor.cpp
index 437ed3241..be6b47a63 100644
--- a/native/jni/magiskhide/proc_monitor.cpp
+++ b/native/jni/magiskhide/proc_monitor.cpp
@@ -20,6 +20,7 @@
 #include <sys/wait.h>
 #include <sys/mount.h>
 #include <vector>
+#include <bitset>
 
 #include <magisk.h>
 #include <utils.h>
@@ -44,8 +45,8 @@ static map<int, vector<string_view>> uid_proc_map;  /* uid -> list of process */
 pthread_mutex_t monitor_lock;
 
 #define PID_MAX 32768
-static vector<bool> attaches(PID_MAX);  /* true if pid is monitored */
-static vector<bool> detaches(PID_MAX);  /* true if tid should be detached */
+static bitset<PID_MAX> attaches;  /* true if pid is monitored */
+static bitset<PID_MAX> detaches;  /* true if tid should be detached */
 
 /********
  * Utils
@@ -242,8 +243,8 @@ static void term_thread(int) {
 	uid_proc_map.clear();
 	zygote_map.clear();
 	hide_set.clear();
-	std::fill(attaches.begin(), attaches.end(), false);
-	std::fill(detaches.begin(), detaches.end(), false);
+	attaches.reset();
+	detaches.reset();
 	// Misc
 	hide_enabled = false;
 	pthread_mutex_destroy(&monitor_lock);