Merge "Fixing array cast." am: caa4617084 am: 4737ee5fa4

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1649541

Change-Id: I8db0d4b1bbc8a0932bbe1a6221bef3b8e845b2dc

1 files changed, 4 insertions, 1 deletions

diff --git a/keystore/java/android/security/keystore/AttestationUtils.java b/keystore/java/android/security/keystore/AttestationUtils.java
index 1eb854187b32..be865a02a945 100644
--- a/keystore/java/android/security/keystore/AttestationUtils.java
+++ b/keystore/java/android/security/keystore/AttestationUtils.java
@@ -36,9 +36,11 @@ import java.nio.charset.StandardCharsets;
 import java.security.KeyPairGenerator;
 import java.security.KeyStore;
 import java.security.SecureRandom;
+import java.security.cert.Certificate;
 import java.security.cert.CertificateFactory;
 import java.security.cert.X509Certificate;
 import java.security.spec.ECGenParameterSpec;
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.Random;
 import java.util.Set;
@@ -281,8 +283,9 @@ public abstract class AttestationUtils {
             KeyStore keyStore = KeyStore.getInstance("AndroidKeyStore");
             keyStore.load(null);
 
+            Certificate[] certs = keyStore.getCertificateChain(keystoreAlias);
             X509Certificate[] certificateChain =
-                    (X509Certificate[]) keyStore.getCertificateChain(keystoreAlias);
+                Arrays.copyOf(certs, certs.length, X509Certificate[].class);
 
             keyStore.deleteEntry(keystoreAlias);