commit bd65271ce7bc4ffe28eebe16bf16796b18b9c424
author Ioannis Canellos <iocanel@apache.org> Fri Nov 18 17:18:52 2011 +0200
committer Adrian Cole <adrian@jclouds.org> Sat Jan 07 11:58:30 2012 -0800
tree 42c3149fc6519c609390862633f92e97bbae93c8
parent 7cba8e72a3232365ae7180a1c783580e8501b129

Added a check for JCE providers that are not working.

core/src/main/java/org/jclouds/encryption/internal/JCECrypto.java

diff --git a/core/src/main/java/org/jclouds/encryption/internal/JCECrypto.java b/core/src/main/java/org/jclouds/encryption/internal/JCECrypto.java
index 9b539b9..4efa54a 100644
--- a/core/src/main/java/org/jclouds/encryption/internal/JCECrypto.java
+++ b/core/src/main/java/org/jclouds/encryption/internal/JCECrypto.java
@@ -63,7 +63,18 @@
 
    @Override
    public Mac hmac(String algorithm, byte[] key) throws NoSuchAlgorithmException, InvalidKeyException {
-      Mac mac = provider == null ? Mac.getInstance(algorithm) : Mac.getInstance(algorithm, provider);
+      Mac mac = null;
+      if(provider != null) {
+          try {
+          mac = Mac.getInstance(algorithm, provider);
+          } catch(Exception e) {
+              //Provider does not function.
+              //Do nothing and let it fallback to the default way.
+          }
+      }
+      if(mac == null) {
+         mac = Mac.getInstance(algorithm);
+      }
       SecretKeySpec signingKey = new SecretKeySpec(key, algorithm);
       mac.init(signingKey);
       return mac;