diff --git a/core/java/android/net/ConnectivityManager.java b/core/java/android/net/ConnectivityManager.java
index c78a973..a9b2533 100644
--- a/core/java/android/net/ConnectivityManager.java
+++ b/core/java/android/net/ConnectivityManager.java
@@ -25,7 +25,6 @@
 import android.os.Build.VERSION_CODES;
 import android.os.Messenger;
 import android.os.RemoteException;
-import android.os.ResultReceiver;
 import android.provider.Settings;
 
 import java.net.InetAddress;
@@ -1330,24 +1329,6 @@
 
     /**
      * Signal that the captive portal check on the indicated network
-     * is complete and we can turn the network on for general use.
-     *
-     * @param info the {@link NetworkInfo} object for the networkType
-     *        in question.
-     *
-     * <p>This method requires the call to hold the permission
-     * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL}.
-     * {@hide}
-     */
-    public void captivePortalCheckComplete(NetworkInfo info) {
-        try {
-            mService.captivePortalCheckComplete(info);
-        } catch (RemoteException e) {
-        }
-    }
-
-    /**
-     * Signal that the captive portal check on the indicated network
      * is complete and whether its a captive portal or not.
      *
      * @param info the {@link NetworkInfo} object for the networkType
diff --git a/core/java/android/net/DhcpInfo.java b/core/java/android/net/DhcpInfo.java
index 3bede5d..788d7d9 100644
--- a/core/java/android/net/DhcpInfo.java
+++ b/core/java/android/net/DhcpInfo.java
@@ -18,7 +18,6 @@
 
 import android.os.Parcelable;
 import android.os.Parcel;
-import java.net.InetAddress;
 
 /**
  * A simple object for retrieving the results of a DHCP request.
diff --git a/core/java/android/net/IConnectivityManager.aidl b/core/java/android/net/IConnectivityManager.aidl
index c1da2e3..b3217eb 100644
--- a/core/java/android/net/IConnectivityManager.aidl
+++ b/core/java/android/net/IConnectivityManager.aidl
@@ -129,8 +129,6 @@
 
     boolean updateLockdownVpn();
 
-    void captivePortalCheckComplete(in NetworkInfo info);
-
     void captivePortalCheckCompleted(in NetworkInfo info, boolean isCaptivePortal);
 
     void supplyMessenger(int networkType, in Messenger messenger);
diff --git a/core/java/android/net/NetworkConfig.java b/core/java/android/net/NetworkConfig.java
index 5d95f41..32a2cda 100644
--- a/core/java/android/net/NetworkConfig.java
+++ b/core/java/android/net/NetworkConfig.java
@@ -16,7 +16,6 @@
 
 package android.net;
 
-import android.util.Log;
 import java.util.Locale;
 
 /**
diff --git a/core/java/android/net/NetworkInfo.java b/core/java/android/net/NetworkInfo.java
index 4d2a70d..53b1308 100644
--- a/core/java/android/net/NetworkInfo.java
+++ b/core/java/android/net/NetworkInfo.java
@@ -156,18 +156,20 @@
     /** {@hide} */
     public NetworkInfo(NetworkInfo source) {
         if (source != null) {
-            mNetworkType = source.mNetworkType;
-            mSubtype = source.mSubtype;
-            mTypeName = source.mTypeName;
-            mSubtypeName = source.mSubtypeName;
-            mState = source.mState;
-            mDetailedState = source.mDetailedState;
-            mReason = source.mReason;
-            mExtraInfo = source.mExtraInfo;
-            mIsFailover = source.mIsFailover;
-            mIsRoaming = source.mIsRoaming;
-            mIsAvailable = source.mIsAvailable;
-            mIsConnectedToProvisioningNetwork = source.mIsConnectedToProvisioningNetwork;
+            synchronized (source) {
+                mNetworkType = source.mNetworkType;
+                mSubtype = source.mSubtype;
+                mTypeName = source.mTypeName;
+                mSubtypeName = source.mSubtypeName;
+                mState = source.mState;
+                mDetailedState = source.mDetailedState;
+                mReason = source.mReason;
+                mExtraInfo = source.mExtraInfo;
+                mIsFailover = source.mIsFailover;
+                mIsRoaming = source.mIsRoaming;
+                mIsAvailable = source.mIsAvailable;
+                mIsConnectedToProvisioningNetwork = source.mIsConnectedToProvisioningNetwork;
+            }
         }
     }
 
diff --git a/core/java/android/net/ProxyProperties.java b/core/java/android/net/ProxyProperties.java
index 010e527..54fc01d 100644
--- a/core/java/android/net/ProxyProperties.java
+++ b/core/java/android/net/ProxyProperties.java
@@ -22,7 +22,6 @@
 import android.text.TextUtils;
 
 import java.net.InetSocketAddress;
-import java.net.UnknownHostException;
 import java.util.Locale;
 
 /**
diff --git a/services/java/com/android/server/ConnectivityService.java b/services/java/com/android/server/ConnectivityService.java
index d42ae3a..6574898 100644
--- a/services/java/com/android/server/ConnectivityService.java
+++ b/services/java/com/android/server/ConnectivityService.java
@@ -112,6 +112,7 @@
 import com.android.internal.telephony.DctConstants;
 import com.android.internal.telephony.Phone;
 import com.android.internal.telephony.PhoneConstants;
+import com.android.internal.telephony.TelephonyIntents;
 import com.android.internal.util.IndentingPrintWriter;
 import com.android.internal.util.XmlUtils;
 import com.android.server.am.BatteryStatsService;
@@ -142,7 +143,6 @@
 import java.net.Inet6Address;
 import java.net.InetAddress;
 import java.net.URL;
-import java.net.URLConnection;
 import java.net.UnknownHostException;
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -2325,36 +2325,6 @@
         }
     }
 
-    private void handleCaptivePortalTrackerCheck(NetworkInfo info) {
-        if (DBG) log("Captive portal check " + info);
-        int type = info.getType();
-        final NetworkStateTracker thisNet = mNetTrackers[type];
-        if (mNetConfigs[type].isDefault()) {
-            if (mActiveDefaultNetwork != -1 && mActiveDefaultNetwork != type) {
-                if (isNewNetTypePreferredOverCurrentNetType(type)) {
-                    if (DBG) log("Captive check on " + info.getTypeName());
-                    mCaptivePortalTracker.detectCaptivePortal(new NetworkInfo(info));
-                    return;
-                } else {
-                    if (DBG) log("Tear down low priority net " + info.getTypeName());
-                    teardown(thisNet);
-                    return;
-                }
-            }
-        }
-
-        if (DBG) log("handleCaptivePortalTrackerCheck: call captivePortalCheckComplete ni=" + info);
-        thisNet.captivePortalCheckComplete();
-    }
-
-    /** @hide */
-    @Override
-    public void captivePortalCheckComplete(NetworkInfo info) {
-        enforceConnectivityInternalPermission();
-        if (DBG) log("captivePortalCheckComplete: ni=" + info);
-        mNetTrackers[info.getType()].captivePortalCheckComplete();
-    }
-
     /** @hide */
     @Override
     public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) {
@@ -2981,9 +2951,6 @@
                     if (info.getDetailedState() ==
                             NetworkInfo.DetailedState.FAILED) {
                         handleConnectionFailure(info);
-                    } else if (info.getDetailedState() ==
-                            DetailedState.CAPTIVE_PORTAL_CHECK) {
-                        handleCaptivePortalTrackerCheck(info);
                     } else if (info.isConnectedToProvisioningNetwork()) {
                         /**
                          * TODO: Create ConnectivityManager.TYPE_MOBILE_PROVISIONING
@@ -4563,15 +4530,27 @@
             mdst.enableMobileProvisioning(url);
         } else {
             if (DBG) log("handleMobileProvisioningAction: on default network");
-            Intent newIntent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN,
-                    Intent.CATEGORY_APP_BROWSER);
-            newIntent.setData(Uri.parse(url));
-            newIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT |
-                    Intent.FLAG_ACTIVITY_NEW_TASK);
-            try {
-                mContext.startActivity(newIntent);
-            } catch (ActivityNotFoundException e) {
-                loge("handleMobileProvisioningAction: startActivity failed" + e);
+            // Check for  apps that can handle provisioning first
+            Intent provisioningIntent = new Intent(TelephonyIntents.ACTION_CARRIER_SETUP);
+            provisioningIntent.addCategory(TelephonyIntents.CATEGORY_MCCMNC_PREFIX
+                    + mTelephonyManager.getSimOperator());
+            if (mContext.getPackageManager().resolveActivity(provisioningIntent, 0 /* flags */)
+                    != null) {
+                provisioningIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT |
+                        Intent.FLAG_ACTIVITY_NEW_TASK);
+                mContext.startActivity(provisioningIntent);
+            } else {
+                // If no apps exist, use standard URL ACTION_VIEW method
+                Intent newIntent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN,
+                        Intent.CATEGORY_APP_BROWSER);
+                newIntent.setData(Uri.parse(url));
+                newIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT |
+                        Intent.FLAG_ACTIVITY_NEW_TASK);
+                try {
+                    mContext.startActivity(newIntent);
+                } catch (ActivityNotFoundException e) {
+                    loge("handleMobileProvisioningAction: startActivity failed" + e);
+                }
             }
         }
     }