killbill-aplcache

diff --git a/entitlement/src/main/java/org/killbill/billing/entitlement/engine/core/DefaultEventsStream.java b/entitlement/src/main/java/org/killbill/billing/entitlement/engine/core/DefaultEventsStream.java
index e5c73d3..7c84dac 100644
--- a/entitlement/src/main/java/org/killbill/billing/entitlement/engine/core/DefaultEventsStream.java
+++ b/entitlement/src/main/java/org/killbill/billing/entitlement/engine/core/DefaultEventsStream.java
@@ -113,7 +113,7 @@ public class DefaultEventsStream implements EventsStream {
                               @Nullable final SubscriptionBase subscription) {
         for (final Object object : new Object[]{account, bundle, baseSubscription, subscription}) {
             Preconditions.checkNotNull(object,
-                                       "accountId='%s%, bundleId='%s', baseSubscriptionId='%s', subscriptionId='%s'",
+                                       "accountId='%s', bundleId='%s', baseSubscriptionId='%s', subscriptionId='%s'",
                                        account != null ? account.getId() : null,
                                        bundle != null ? bundle.getId() : null,
                                        baseSubscription != null ? baseSubscription.getId() : null,