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-rw-r--r--crypto/src/x509/X509Certificate.cs2
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/src/x509/X509Certificate.cs b/crypto/src/x509/X509Certificate.cs
index 2e627dbab..fd156e487 100644
--- a/crypto/src/x509/X509Certificate.cs
+++ b/crypto/src/x509/X509Certificate.cs
@@ -298,7 +298,7 @@ namespace Org.BouncyCastle.X509
 		/// </summary>
 		public virtual bool[] GetKeyUsage()
 		{
-			return keyUsage == null ? null : (bool[]) keyUsage.Clone();
+            return Arrays.Clone(keyUsage);
 		}
 
 		// TODO Replace with something that returns a list of DerObjectIdentifier