Add equals() & hashCode() for VpnProfileState

Bug: 225010642
Test: atest FrameworksNetTests:VpnTest
Change-Id: I8711187e690385866fa681c3fe5fccdf353ac30b
diff --git a/core/java/android/net/VpnProfileState.java b/core/java/android/net/VpnProfileState.java
index 0f21a9d..552a2c1 100644
--- a/core/java/android/net/VpnProfileState.java
+++ b/core/java/android/net/VpnProfileState.java
@@ -24,6 +24,7 @@
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
+import java.util.Objects;
 import java.util.StringJoiner;
 
 /**
@@ -176,4 +177,19 @@
         resultJoiner.add("Lockdown: " + isLockdownEnabled());
         return resultJoiner.toString();
     }
+
+    @Override
+    public boolean equals(@Nullable Object obj) {
+        if (!(obj instanceof VpnProfileState)) return false;
+        final VpnProfileState that = (VpnProfileState) obj;
+        return (getState() == that.getState()
+                && Objects.equals(getSessionId(), that.getSessionId())
+                && isAlwaysOn() == that.isAlwaysOn()
+                && isLockdownEnabled() == that.isLockdownEnabled());
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(getState(), getSessionId(), isAlwaysOn(), isLockdownEnabled());
+    }
 }