diff --git a/staticlibs/Android.bp b/staticlibs/Android.bp
index ef80170..a311eb5 100644
--- a/staticlibs/Android.bp
+++ b/staticlibs/Android.bp
@@ -110,6 +110,7 @@
 java_library {
     name: "net-utils-device-common-bpf",
     srcs: [
+        "device/com/android/net/module/util/BpfBitmap.java",
         "device/com/android/net/module/util/BpfMap.java",
         "device/com/android/net/module/util/HexDump.java",
         "device/com/android/net/module/util/IBpfMap.java",
diff --git a/staticlibs/device/com/android/net/module/util/BpfBitmap.java b/staticlibs/device/com/android/net/module/util/BpfBitmap.java
new file mode 100644
index 0000000..0c8bb37
--- /dev/null
+++ b/staticlibs/device/com/android/net/module/util/BpfBitmap.java
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.net.module.util;
+
+import android.system.ErrnoException;
+
+import androidx.annotation.NonNull;
+
+ /**
+ *
+ * Generic bitmap class for use with BPF programs. Corresponds to a BpfMap
+ * array type with key->int and value->uint64_t defined in the bpf program.
+ *
+ */
+public class BpfBitmap {
+    private BpfMap<Struct.U32, Struct.S64> mBpfMap;
+
+    /**
+     * Create a BpfBitmap map wrapper with "path" of filesystem.
+     *
+     * @param path The path of the BPF map.
+     */
+    public BpfBitmap(@NonNull String path) throws ErrnoException {
+        mBpfMap = new BpfMap<Struct.U32, Struct.S64>(path, BpfMap.BPF_F_RDWR,
+                Struct.U32.class, Struct.S64.class);
+    }
+
+    /**
+     * Retrieves the value from BpfMap for the given key.
+     *
+     * @param key The key in the map corresponding to the value to return.
+     */
+    private long getBpfMapValue(Struct.U32 key) throws ErrnoException  {
+        Struct.S64 curVal = mBpfMap.getValue(key);
+        if (curVal != null) {
+            return curVal.val;
+        } else {
+            return 0;
+        }
+    }
+
+    /**
+     * Retrieves the bit for the given index in the bitmap.
+     *
+     * @param index Position in bitmap.
+     */
+    public boolean get(int index) throws ErrnoException  {
+        if (index < 0) return false;
+
+        Struct.U32 key = new Struct.U32(index >> 6);
+        return ((getBpfMapValue(key) >>> (index & 63)) & 1L) != 0;
+    }
+
+    /**
+     * Set the specified index in the bitmap.
+     *
+     * @param index Position to set in bitmap.
+     */
+    public void set(int index) throws ErrnoException {
+        set(index, true);
+    }
+
+    /**
+     * Unset the specified index in the bitmap.
+     *
+     * @param index Position to unset in bitmap.
+     */
+    public void unset(int index) throws ErrnoException {
+        set(index, false);
+    }
+
+    /**
+     * Change the specified index in the bitmap to set value.
+     *
+     * @param index Position to unset in bitmap.
+     * @param set Boolean indicating to set or unset index.
+     */
+    public void set(int index, boolean set) throws ErrnoException {
+        if (index < 0) throw new IllegalArgumentException("Index out of bounds.");
+
+        Struct.U32 key = new Struct.U32(index >> 6);
+        long mask = (1L << (index & 63));
+        long val = getBpfMapValue(key);
+        if (set) val |= mask; else val &= ~mask;
+        mBpfMap.updateEntry(key, new Struct.S64(val));
+    }
+
+    /**
+     * Clears the map. The map may already be empty.
+     *
+     * @throws ErrnoException if updating entry to 0 fails.
+     */
+    public void clear() throws ErrnoException {
+        mBpfMap.forEach((key, value) -> {
+            mBpfMap.updateEntry(key, new Struct.S64(0));
+        });
+    }
+
+    /**
+     * Checks if all bitmap values are 0.
+     */
+    public boolean isEmpty() throws ErrnoException {
+        Struct.U32 key = mBpfMap.getFirstKey();
+        while (key != null) {
+            if (getBpfMapValue(key) != 0) {
+                return false;
+            }
+            key = mBpfMap.getNextKey(key);
+        }
+        return true;
+    }
+}
diff --git a/staticlibs/device/com/android/net/module/util/BpfMap.java b/staticlibs/device/com/android/net/module/util/BpfMap.java
index b42c388..d171b11 100644
--- a/staticlibs/device/com/android/net/module/util/BpfMap.java
+++ b/staticlibs/device/com/android/net/module/util/BpfMap.java
@@ -250,7 +250,7 @@
      * Otherwise, iteration will result in undefined behaviour.
      */
     @Override
-    public void forEach(BiConsumer<K, V> action) throws ErrnoException {
+    public void forEach(ThrowingBiConsumer<K, V> action) throws ErrnoException {
         @Nullable K nextKey = getFirstKey();
 
         while (nextKey != null) {
diff --git a/staticlibs/device/com/android/net/module/util/IBpfMap.java b/staticlibs/device/com/android/net/module/util/IBpfMap.java
index 708cf61..d43b22c 100644
--- a/staticlibs/device/com/android/net/module/util/IBpfMap.java
+++ b/staticlibs/device/com/android/net/module/util/IBpfMap.java
@@ -64,10 +64,14 @@
     /** Retrieve a value from the map. */
     V getValue(@NonNull K key) throws ErrnoException;
 
+    public interface ThrowingBiConsumer<T,U> {
+        void accept(T t, U u) throws ErrnoException;
+    }
+
     /**
      * Iterate through the map and handle each key -> value retrieved base on the given BiConsumer.
      */
-    void forEach(BiConsumer<K, V> action) throws ErrnoException;
+    void forEach(ThrowingBiConsumer<K, V> action) throws ErrnoException;
 
     /** Clears the map. */
     void clear() throws ErrnoException;
diff --git a/staticlibs/testutils/Android.bp b/staticlibs/testutils/Android.bp
index 1a1328f..642544a 100644
--- a/staticlibs/testutils/Android.bp
+++ b/staticlibs/testutils/Android.bp
@@ -32,7 +32,6 @@
     ],
     static_libs: [
         "androidx.test.ext.junit",
-        "compatibility-device-util-axt",
         "kotlin-reflect",
         "libnanohttpd",
         "net-tests-utils-host-device-common",
diff --git a/staticlibs/testutils/devicetests/com/android/testutils/DumpTestUtils.java b/staticlibs/testutils/devicetests/com/android/testutils/DumpTestUtils.java
index f2ad1e2..d103748 100644
--- a/staticlibs/testutils/devicetests/com/android/testutils/DumpTestUtils.java
+++ b/staticlibs/testutils/devicetests/com/android/testutils/DumpTestUtils.java
@@ -16,7 +16,7 @@
 
 package com.android.testutils;
 
-import static com.android.compatibility.common.util.SystemUtil.runWithShellPermissionIdentity;
+import static com.android.testutils.TestPermissionUtil.runAsShell;
 
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
@@ -70,8 +70,7 @@
         final String what = "service '" + serviceName + "' with args: " + Arrays.toString(args);
         try {
             if (adoptPermission) {
-                runWithShellPermissionIdentity(() -> ib.dump(pipe[1], args),
-                        android.Manifest.permission.DUMP);
+                runAsShell(android.Manifest.permission.DUMP, () -> ib.dump(pipe[1], args));
             } else {
                 ib.dump(pipe[1], args);
             }
diff --git a/staticlibs/testutils/devicetests/com/android/testutils/TestBpfMap.java b/staticlibs/testutils/devicetests/com/android/testutils/TestBpfMap.java
index 5614a99..73bc3a9 100644
--- a/staticlibs/testutils/devicetests/com/android/testutils/TestBpfMap.java
+++ b/staticlibs/testutils/devicetests/com/android/testutils/TestBpfMap.java
@@ -21,6 +21,7 @@
 import androidx.annotation.NonNull;
 
 import com.android.net.module.util.BpfMap;
+import com.android.net.module.util.IBpfMap.ThrowingBiConsumer;
 import com.android.net.module.util.Struct;
 
 import java.util.HashMap;
@@ -28,7 +29,6 @@
 import java.util.Map;
 import java.util.NoSuchElementException;
 import java.util.Objects;
-import java.util.function.BiConsumer;
 
 /**
  *
@@ -49,7 +49,7 @@
     }
 
     @Override
-    public void forEach(BiConsumer<K, V> action) throws ErrnoException {
+    public void forEach(ThrowingBiConsumer<K, V> action) throws ErrnoException {
         // TODO: consider using mocked #getFirstKey and #getNextKey to iterate. It helps to
         // implement the entry deletion in the iteration if required.
         for (Map.Entry<K, V> entry : mMap.entrySet()) {