3 files changed, 8 insertions, 17 deletions
diff --git a/keystore/java/android/security/Authorization.java b/keystore/java/android/security/Authorization.java
index 21d23b1b2575..50a90820117d 100644
--- a/keystore/java/android/security/Authorization.java
+++ b/keystore/java/android/security/Authorization.java
@@ -33,20 +33,12 @@ import android.util.Log;
  */
 public class Authorization {
     private static final String TAG = "KeystoreAuthorization";
-    private static IKeystoreAuthorization sIKeystoreAuthorization;
 
     public static final int SYSTEM_ERROR = ResponseCode.SYSTEM_ERROR;
 
-    public Authorization() {
-        sIKeystoreAuthorization = null;
-    }
-
-    private static synchronized IKeystoreAuthorization getService() {
-        if (sIKeystoreAuthorization == null) {
-            sIKeystoreAuthorization = IKeystoreAuthorization.Stub.asInterface(
+    private static IKeystoreAuthorization getService() {
+        return IKeystoreAuthorization.Stub.asInterface(
                     ServiceManager.checkService("android.security.authorization"));
-        }
-        return sIKeystoreAuthorization;
     }
 
     /**
@@ -55,12 +47,12 @@ public class Authorization {
      * @param authToken created by Android authenticators.
      * @return 0 if successful or {@code ResponseCode.SYSTEM_ERROR}.
      */
-    public int addAuthToken(@NonNull HardwareAuthToken authToken) {
+    public static int addAuthToken(@NonNull HardwareAuthToken authToken) {
         if (!android.security.keystore2.AndroidKeyStoreProvider.isInstalled()) return 0;
         try {
             getService().addAuthToken(authToken);
             return 0;
-        } catch (RemoteException e) {
+        } catch (RemoteException | NullPointerException e) {
             Log.w(TAG, "Can not connect to keystore", e);
             return SYSTEM_ERROR;
         } catch (ServiceSpecificException e) {
@@ -73,7 +65,7 @@ public class Authorization {
      * @param authToken
      * @return 0 if successful or a {@code ResponseCode}.
      */
-    public int addAuthToken(@NonNull byte[] authToken) {
+    public static int addAuthToken(@NonNull byte[] authToken) {
         return addAuthToken(AuthTokenUtils.toHardwareAuthToken(authToken));
     }
 
@@ -86,7 +78,7 @@ public class Authorization {
      *
      * @return 0 if successful or a {@code ResponseCode}.
      */
-    public int onLockScreenEvent(@NonNull boolean locked, @NonNull int userId,
+    public static int onLockScreenEvent(@NonNull boolean locked, @NonNull int userId,
             @Nullable byte[] syntheticPassword) {
         if (!android.security.keystore2.AndroidKeyStoreProvider.isInstalled()) return 0;
         try {
@@ -96,7 +88,7 @@ public class Authorization {
                 getService().onLockScreenEvent(LockScreenEvent.UNLOCK, userId, syntheticPassword);
             }
             return 0;
-        } catch (RemoteException e) {
+        } catch (RemoteException | NullPointerException e) {
             Log.w(TAG, "Can not connect to keystore", e);
             return SYSTEM_ERROR;
         } catch (ServiceSpecificException e) {
diff --git a/keystore/java/android/security/KeyStore.java b/keystore/java/android/security/KeyStore.java
index e19d88c182ff..198df40c7d7b 100644
--- a/keystore/java/android/security/KeyStore.java
+++ b/keystore/java/android/security/KeyStore.java
@@ -996,7 +996,7 @@ public class KeyStore {
      */
     public int addAuthToken(byte[] authToken) {
         try {
-            new Authorization().addAuthToken(authToken);
+            Authorization.addAuthToken(authToken);
             return mBinder.addAuthToken(authToken);
         } catch (RemoteException e) {
             Log.w(TAG, "Cannot connect to keystore", e);
diff --git a/keystore/java/android/security/KeyStore2.java b/keystore/java/android/security/KeyStore2.java
index f7477bf92c81..476e4d7b7b18 100644
--- a/keystore/java/android/security/KeyStore2.java
+++ b/keystore/java/android/security/KeyStore2.java
@@ -107,7 +107,6 @@ public class KeyStore2 {
             try {
                 return request.execute(service);
             } catch (ServiceSpecificException e) {
-                Log.e(TAG, "KeyStore exception", e);
                 throw getKeyStoreException(e.errorCode);
             } catch (RemoteException e) {
                 if (firstTry) {