1 files changed, 1 insertions, 1 deletions
diff --git a/luni/src/main/java/java/security/SecureRandom.java b/luni/src/main/java/java/security/SecureRandom.java
index 6ed631c..1b62c35 100644
--- a/luni/src/main/java/java/security/SecureRandom.java
+++ b/luni/src/main/java/java/security/SecureRandom.java
@@ -209,7 +209,7 @@ public class SecureRandom extends Random {
     public static SecureRandom getInstance(String algorithm, Provider provider)
             throws NoSuchAlgorithmException {
         if (provider == null) {
-            throw new IllegalArgumentException();
+            throw new IllegalArgumentException("provider == null");
         }
         if (algorithm == null) {
             throw new NullPointerException("algorithm == null");