killbill-memoizeit

diff --git a/api/src/main/java/com/ning/billing/BillingExceptionBase.java b/api/src/main/java/com/ning/billing/BillingExceptionBase.java
index 85761ab..251773a 100644
--- a/api/src/main/java/com/ning/billing/BillingExceptionBase.java
+++ b/api/src/main/java/com/ning/billing/BillingExceptionBase.java
@@ -76,7 +76,6 @@ public class BillingExceptionBase extends Exception {
     @Override
     public String toString() {
         final StringBuilder sb = new StringBuilder();
-        sb.append("BillingExceptionBase");
         sb.append("{cause=").append(cause);
         sb.append(", code=").append(code);
         sb.append(", formattedMsg='").append(formattedMsg).append('\'');