diff --git a/overdue/src/main/java/com/ning/billing/overdue/service/DefaultOverdueService.java b/overdue/src/main/java/com/ning/billing/overdue/service/DefaultOverdueService.java
index 3153f0e..a42e757 100644
--- a/overdue/src/main/java/com/ning/billing/overdue/service/DefaultOverdueService.java
+++ b/overdue/src/main/java/com/ning/billing/overdue/service/DefaultOverdueService.java
@@ -61,7 +61,9 @@ public class DefaultOverdueService implements ExtendedOverdueService {
try {
System.out.println("Overdue config URI" + properties.getConfigURI());
URI u = new URI(properties.getConfigURI());
- overdueConfig = XMLLoader.getObjectFromUri(u, OverdueConfig.class);
+ if(u != null) {
+ overdueConfig = XMLLoader.getObjectFromUri(u, OverdueConfig.class);
+ }
isInitialized = true;
} catch (Exception e) {
diff --git a/overdue/src/main/java/com/ning/billing/overdue/wrapper/OverdueWrapper.java b/overdue/src/main/java/com/ning/billing/overdue/wrapper/OverdueWrapper.java
index 97220d5..5b811ee 100644
--- a/overdue/src/main/java/com/ning/billing/overdue/wrapper/OverdueWrapper.java
+++ b/overdue/src/main/java/com/ning/billing/overdue/wrapper/OverdueWrapper.java
@@ -51,6 +51,10 @@ public class OverdueWrapper<T extends Blockable> {
public OverdueState<T> refresh() throws OverdueError, OverdueApiException {
try {
+ if(overdueStateSet == null) { // No configuration available
+ return null;
+ }
+
OverdueState<T> nextOverdueState;
BillingState<T> billingState = billingStateCalcuator.calculateBillingState(overdueable);
String previousOverdueStateName = api.getBlockingStateFor(overdueable).getStateName();
