diff --git a/core/java/android/net/CaptivePortalData.java b/core/java/android/net/CaptivePortalData.java
index 1357803a6c..09f47625a8 100644
--- a/core/java/android/net/CaptivePortalData.java
+++ b/core/java/android/net/CaptivePortalData.java
@@ -254,7 +254,7 @@ public final class CaptivePortalData implements Parcelable {
     }
 
     @Override
-    public boolean equals(Object obj) {
+    public boolean equals(@Nullable Object obj) {
         if (!(obj instanceof CaptivePortalData)) return false;
         final CaptivePortalData other = (CaptivePortalData) obj;
         return mRefreshTimeMillis == other.mRefreshTimeMillis
diff --git a/core/java/android/net/IpConfiguration.java b/core/java/android/net/IpConfiguration.java
index 23d5ff7f3a..fa31b806ba 100644
--- a/core/java/android/net/IpConfiguration.java
+++ b/core/java/android/net/IpConfiguration.java
@@ -166,7 +166,7 @@ public final class IpConfiguration implements Parcelable {
     }
 
     @Override
-    public boolean equals(Object o) {
+    public boolean equals(@Nullable Object o) {
         if (o == this) {
             return true;
         }
diff --git a/core/java/android/net/IpPrefix.java b/core/java/android/net/IpPrefix.java
index 8cfe6df678..06f5f270d1 100644
--- a/core/java/android/net/IpPrefix.java
+++ b/core/java/android/net/IpPrefix.java
@@ -18,6 +18,7 @@ package android.net;
 
 import android.annotation.IntRange;
 import android.annotation.NonNull;
+import android.annotation.Nullable;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.os.Parcel;
@@ -127,7 +128,7 @@ public final class IpPrefix implements Parcelable {
      * @return {@code true} if both objects are equal, {@code false} otherwise.
      */
     @Override
-    public boolean equals(Object obj) {
+    public boolean equals(@Nullable Object obj) {
         if (!(obj instanceof IpPrefix)) {
             return false;
         }
diff --git a/core/java/android/net/LinkAddress.java b/core/java/android/net/LinkAddress.java
index a9d7f17017..772c685856 100644
--- a/core/java/android/net/LinkAddress.java
+++ b/core/java/android/net/LinkAddress.java
@@ -357,7 +357,7 @@ public class LinkAddress implements Parcelable {
      * @return {@code true} if both objects are equal, {@code false} otherwise.
      */
     @Override
-    public boolean equals(Object obj) {
+    public boolean equals(@Nullable Object obj) {
         if (!(obj instanceof LinkAddress)) {
             return false;
         }
diff --git a/core/java/android/net/LinkProperties.java b/core/java/android/net/LinkProperties.java
index 651494d1c9..555d7103f6 100644
--- a/core/java/android/net/LinkProperties.java
+++ b/core/java/android/net/LinkProperties.java
@@ -1639,7 +1639,7 @@ public final class LinkProperties implements Parcelable {
      * @return {@code true} if both objects are equal, {@code false} otherwise.
      */
     @Override
-    public boolean equals(Object obj) {
+    public boolean equals(@Nullable Object obj) {
         if (this == obj) return true;
 
         if (!(obj instanceof LinkProperties)) return false;
diff --git a/core/java/android/net/MacAddress.java b/core/java/android/net/MacAddress.java
index 0eb3c1e8ad..6949bf2a78 100644
--- a/core/java/android/net/MacAddress.java
+++ b/core/java/android/net/MacAddress.java
@@ -160,7 +160,7 @@ public final class MacAddress implements Parcelable {
     }
 
     @Override
-    public boolean equals(Object o) {
+    public boolean equals(@Nullable Object o) {
         return (o instanceof MacAddress) && ((MacAddress) o).mAddr == mAddr;
     }
 
diff --git a/core/java/android/net/Network.java b/core/java/android/net/Network.java
index b872617ab3..10ee72e48e 100644
--- a/core/java/android/net/Network.java
+++ b/core/java/android/net/Network.java
@@ -17,6 +17,7 @@
 package android.net;
 
 import android.annotation.NonNull;
+import android.annotation.Nullable;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.compat.annotation.UnsupportedAppUsage;
@@ -500,7 +501,7 @@ public class Network implements Parcelable {
     };
 
     @Override
-    public boolean equals(Object obj) {
+    public boolean equals(@Nullable Object obj) {
         if (!(obj instanceof Network)) return false;
         Network other = (Network)obj;
         return this.netId == other.netId;
diff --git a/core/java/android/net/NetworkRequest.java b/core/java/android/net/NetworkRequest.java
index 473e6c5a72..1d6e50710d 100644
--- a/core/java/android/net/NetworkRequest.java
+++ b/core/java/android/net/NetworkRequest.java
@@ -553,7 +553,7 @@ public class NetworkRequest implements Parcelable {
         proto.end(token);
     }
 
-    public boolean equals(Object obj) {
+    public boolean equals(@Nullable Object obj) {
         if (obj instanceof NetworkRequest == false) return false;
         NetworkRequest that = (NetworkRequest)obj;
         return (that.legacyType == this.legacyType &&
diff --git a/core/java/android/net/ProxyInfo.java b/core/java/android/net/ProxyInfo.java
index a32b41f6be..de5a1800a9 100644
--- a/core/java/android/net/ProxyInfo.java
+++ b/core/java/android/net/ProxyInfo.java
@@ -275,7 +275,7 @@ public class ProxyInfo implements Parcelable {
     }
 
     @Override
-    public boolean equals(Object o) {
+    public boolean equals(@Nullable Object o) {
         if (!(o instanceof ProxyInfo)) return false;
         ProxyInfo p = (ProxyInfo)o;
         // If PAC URL is present in either then they must be equal.
diff --git a/core/java/android/net/RouteInfo.java b/core/java/android/net/RouteInfo.java
index 9876076173..d9568756bb 100644
--- a/core/java/android/net/RouteInfo.java
+++ b/core/java/android/net/RouteInfo.java
@@ -539,7 +539,7 @@ public final class RouteInfo implements Parcelable {
      * Compares this RouteInfo object against the specified object and indicates if they are equal.
      * @return {@code true} if the objects are equal, {@code false} otherwise.
      */
-    public boolean equals(Object obj) {
+    public boolean equals(@Nullable Object obj) {
         if (this == obj) return true;
 
         if (!(obj instanceof RouteInfo)) return false;
@@ -575,7 +575,7 @@ public final class RouteInfo implements Parcelable {
         }
 
         @Override
-        public boolean equals(Object o) {
+        public boolean equals(@Nullable Object o) {
             if (!(o instanceof RouteKey)) {
                 return false;
             }
diff --git a/core/java/android/net/UidRange.java b/core/java/android/net/UidRange.java
index d75c43ddb3..3bc0f9ca4e 100644
--- a/core/java/android/net/UidRange.java
+++ b/core/java/android/net/UidRange.java
@@ -18,6 +18,7 @@ package android.net;
 
 import static android.os.UserHandle.PER_USER_RANGE;
 
+import android.annotation.Nullable;
 import android.os.Parcel;
 import android.os.Parcelable;
 
@@ -81,7 +82,7 @@ public final class UidRange implements Parcelable {
     }
 
     @Override
-    public boolean equals(Object o) {
+    public boolean equals(@Nullable Object o) {
         if (this == o) {
             return true;
         }