1 files changed, 1 insertions, 1 deletions
diff --git a/luni/src/main/java/java/security/cert/X509CRL.java b/luni/src/main/java/java/security/cert/X509CRL.java
index 4badd59..4addb0e 100644
--- a/luni/src/main/java/java/security/cert/X509CRL.java
+++ b/luni/src/main/java/java/security/cert/X509CRL.java
@@ -218,7 +218,7 @@ public abstract class X509CRL extends CRL implements X509Extension {
      */
     public X509CRLEntry getRevokedCertificate(X509Certificate certificate) {
         if (certificate == null) {
-            throw new NullPointerException();
+            throw new NullPointerException("certificate == null");
         }
         return getRevokedCertificate(certificate.getSerialNumber());
     }