diff --git a/framework/src/android/net/NetworkCapabilities.java b/framework/src/android/net/NetworkCapabilities.java
index cd76f40..ab58f1b 100644
--- a/framework/src/android/net/NetworkCapabilities.java
+++ b/framework/src/android/net/NetworkCapabilities.java
@@ -34,9 +34,9 @@
 import android.util.proto.ProtoOutputStream;
 
 import com.android.internal.annotations.VisibleForTesting;
-import com.android.internal.util.BitUtils;
 import com.android.internal.util.Preconditions;
 import com.android.net.module.util.CollectionUtils;
+import com.android.net.module.util.NetworkCapabilitiesUtils;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
@@ -610,7 +610,7 @@
      */
     @UnsupportedAppUsage
     public @NetCapability int[] getCapabilities() {
-        return BitUtils.unpackBits(mNetworkCapabilities);
+        return NetworkCapabilitiesUtils.unpackBits(mNetworkCapabilities);
     }
 
     /**
@@ -620,7 +620,7 @@
      * @hide
      */
     public @NetCapability int[] getUnwantedCapabilities() {
-        return BitUtils.unpackBits(mUnwantedNetworkCapabilities);
+        return NetworkCapabilitiesUtils.unpackBits(mUnwantedNetworkCapabilities);
     }
 
 
@@ -632,8 +632,8 @@
      */
     public void setCapabilities(@NetCapability int[] capabilities,
             @NetCapability int[] unwantedCapabilities) {
-        mNetworkCapabilities = BitUtils.packBits(capabilities);
-        mUnwantedNetworkCapabilities = BitUtils.packBits(unwantedCapabilities);
+        mNetworkCapabilities = NetworkCapabilitiesUtils.packBits(capabilities);
+        mUnwantedNetworkCapabilities = NetworkCapabilitiesUtils.packBits(unwantedCapabilities);
     }
 
     /**
@@ -688,7 +688,7 @@
                 & NON_REQUESTABLE_CAPABILITIES;
 
         if (nonRequestable != 0) {
-            return capabilityNameOf(BitUtils.unpackBits(nonRequestable)[0]);
+            return capabilityNameOf(NetworkCapabilitiesUtils.unpackBits(nonRequestable)[0]);
         }
         if (mLinkUpBandwidthKbps != 0 || mLinkDownBandwidthKbps != 0) return "link bandwidth";
         if (hasSignalStrength()) return "signalStrength";
@@ -946,7 +946,7 @@
      */
     @SystemApi
     @NonNull public @Transport int[] getTransportTypes() {
-        return BitUtils.unpackBits(mTransportTypes);
+        return NetworkCapabilitiesUtils.unpackBits(mTransportTypes);
     }
 
     /**
@@ -956,7 +956,7 @@
      * @hide
      */
     public void setTransportTypes(@Transport int[] transportTypes) {
-        mTransportTypes = BitUtils.packBits(transportTypes);
+        mTransportTypes = NetworkCapabilitiesUtils.packBits(transportTypes);
     }
 
     /**
@@ -1721,8 +1721,10 @@
         long oldImmutableCapabilities = this.mNetworkCapabilities & mask;
         long newImmutableCapabilities = that.mNetworkCapabilities & mask;
         if (oldImmutableCapabilities != newImmutableCapabilities) {
-            String before = capabilityNamesOf(BitUtils.unpackBits(oldImmutableCapabilities));
-            String after = capabilityNamesOf(BitUtils.unpackBits(newImmutableCapabilities));
+            String before = capabilityNamesOf(NetworkCapabilitiesUtils.unpackBits(
+                    oldImmutableCapabilities));
+            String after = capabilityNamesOf(NetworkCapabilitiesUtils.unpackBits(
+                    newImmutableCapabilities));
             joiner.add(String.format("immutable capabilities changed: %s -> %s", before, after));
         }
 
diff --git a/framework/src/android/net/RouteInfo.java b/framework/src/android/net/RouteInfo.java
index 5b6684a..fad3144 100644
--- a/framework/src/android/net/RouteInfo.java
+++ b/framework/src/android/net/RouteInfo.java
@@ -26,6 +26,7 @@
 import android.os.Parcelable;
 
 import com.android.net.module.util.NetUtils;
+import com.android.net.module.util.NetworkStackConstants;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
@@ -181,9 +182,9 @@
         if (destination == null) {
             if (gateway != null) {
                 if (gateway instanceof Inet4Address) {
-                    destination = new IpPrefix(Inet4Address.ANY, 0);
+                    destination = new IpPrefix(NetworkStackConstants.IPV4_ADDR_ANY, 0);
                 } else {
-                    destination = new IpPrefix(Inet6Address.ANY, 0);
+                    destination = new IpPrefix(NetworkStackConstants.IPV6_ADDR_ANY, 0);
                 }
             } else {
                 // no destination, no gateway. invalid.
@@ -196,9 +197,9 @@
         // ConnectivityService) to stop doing things like r.getGateway().equals(), ... .
         if (gateway == null) {
             if (destination.getAddress() instanceof Inet4Address) {
-                gateway = Inet4Address.ANY;
+                gateway = NetworkStackConstants.IPV4_ADDR_ANY;
             } else {
-                gateway = Inet6Address.ANY;
+                gateway = NetworkStackConstants.IPV6_ADDR_ANY;
             }
         }
         mHasGateway = (!gateway.isAnyLocalAddress());
diff --git a/framework/src/android/net/util/DnsUtils.java b/framework/src/android/net/util/DnsUtils.java
index 7908353..3fe245e 100644
--- a/framework/src/android/net/util/DnsUtils.java
+++ b/framework/src/android/net/util/DnsUtils.java
@@ -29,8 +29,6 @@
 import android.system.Os;
 import android.util.Log;
 
-import com.android.internal.util.BitUtils;
-
 import libcore.io.IoUtils;
 
 import java.io.FileDescriptor;
@@ -332,7 +330,7 @@
             if (srcByte[i] == dstByte[i]) {
                 continue;
             }
-            int x = BitUtils.uint8(srcByte[i]) ^ BitUtils.uint8(dstByte[i]);
+            int x = (srcByte[i] & 0xff) ^ (dstByte[i] & 0xff);
             return i * CHAR_BIT + (Integer.numberOfLeadingZeros(x) - 24);  // Java ints are 32 bits
         }
         return dstByte.length * CHAR_BIT;