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-rw-r--r--luni/src/main/java/java/security/Signature.java2
1 files changed, 1 insertions, 1 deletions
diff --git a/luni/src/main/java/java/security/Signature.java b/luni/src/main/java/java/security/Signature.java
index be89654..b2bd122 100644
--- a/luni/src/main/java/java/security/Signature.java
+++ b/luni/src/main/java/java/security/Signature.java
@@ -168,7 +168,7 @@ public abstract class Signature extends SignatureSpi {
throw new NullPointerException("algorithm == null");
}
if (provider == null) {
- throw new IllegalArgumentException();
+ throw new IllegalArgumentException("provider == null");
}
return getSignatureInstance(algorithm, provider);
}