1 files changed, 3 insertions, 0 deletions
diff --git a/base/util/src/netscape/security/util/PrettyPrintFormat.java b/base/util/src/netscape/security/util/PrettyPrintFormat.java
index 4bbc87936..30ae33b10 100644
--- a/base/util/src/netscape/security/util/PrettyPrintFormat.java
+++ b/base/util/src/netscape/security/util/PrettyPrintFormat.java
@@ -102,6 +102,9 @@ public class PrettyPrintFormat {
 
     public String toHexString(byte[] in, int indentSize,
             int lineLen, String separator) {
+        if (in == null) {
+            return "";
+        }
         StringBuffer sb = new StringBuffer();
         int hexCount = 0;
         char c[];