killbill-memoizeit

diff --git a/jaxrs/src/main/java/org/killbill/billing/jaxrs/resources/InvoiceResource.java b/jaxrs/src/main/java/org/killbill/billing/jaxrs/resources/InvoiceResource.java
index 5d2eab7..47bd003 100644
--- a/jaxrs/src/main/java/org/killbill/billing/jaxrs/resources/InvoiceResource.java
+++ b/jaxrs/src/main/java/org/killbill/billing/jaxrs/resources/InvoiceResource.java
@@ -375,18 +375,18 @@ public class InvoiceResource extends JaxRsResourceBase {
         // Passing a null or empty body means we are trying to generate an invoice with a (future) targetDate
         // On the other hand if body is not null, we are attempting a dryRun subscription operation
         if (dryRunSubscriptionSpec != null && dryRunSubscriptionSpec.getDryRunAction() != null) {
-            if (SubscriptionEventType.START_BILLING.toString().equals(dryRunSubscriptionSpec.getDryRunAction())) {
+            if (SubscriptionEventType.START_BILLING.equals(dryRunSubscriptionSpec.getDryRunAction())) {
                 verifyNonNullOrEmpty(dryRunSubscriptionSpec.getProductName(), "DryRun subscription product category should be specified");
                 verifyNonNullOrEmpty(dryRunSubscriptionSpec.getBillingPeriod(), "DryRun subscription billingPeriod should be specified");
                 verifyNonNullOrEmpty(dryRunSubscriptionSpec.getProductCategory(), "DryRun subscription product category should be specified");
                 if (dryRunSubscriptionSpec.getProductCategory().equals(ProductCategory.ADD_ON)) {
                     verifyNonNullOrEmpty(dryRunSubscriptionSpec.getBundleId(), "DryRun bundle ID should be specified");
                 }
-            } else if (SubscriptionEventType.CHANGE.toString().equals(dryRunSubscriptionSpec.getDryRunAction())) {
+            } else if (SubscriptionEventType.CHANGE.equals(dryRunSubscriptionSpec.getDryRunAction())) {
                 verifyNonNullOrEmpty(dryRunSubscriptionSpec.getProductName(), "DryRun subscription product category should be specified");
                 verifyNonNullOrEmpty(dryRunSubscriptionSpec.getBillingPeriod(), "DryRun subscription billingPeriod should be specified");
                 verifyNonNullOrEmpty(dryRunSubscriptionSpec.getSubscriptionId(), "DryRun subscriptionID should be specified");
-            } else if (SubscriptionEventType.STOP_BILLING.toString().equals(dryRunSubscriptionSpec.getDryRunAction())) {
+            } else if (SubscriptionEventType.STOP_BILLING.equals(dryRunSubscriptionSpec.getDryRunAction())) {
                 verifyNonNullOrEmpty(dryRunSubscriptionSpec.getSubscriptionId(), "DryRun subscriptionID should be specified");
             }
         }