1 files changed, 2 insertions, 1 deletions
diff --git a/java/sca/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/invocation/JavaComponentContextProvider.java b/java/sca/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/invocation/JavaComponentContextProvider.java
index f2d134f7a2..421c95672b 100644
--- a/java/sca/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/invocation/JavaComponentContextProvider.java
+++ b/java/sca/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/invocation/JavaComponentContextProvider.java
@@ -148,7 +148,8 @@ public class JavaComponentContextProvider {
                 if (callbackReference != null) {
                     List<EndpointReference> wires = callbackReference.getEndpointReferences();
                     if (!wires.isEmpty()) {
-                        callbackWires.put(wires.get(0).getInterfaceContract().getInterface().toString(),
+                        RuntimeEndpointReference epr = (RuntimeEndpointReference) wires.get(0);
+                        callbackWires.put(epr.getReferenceInterfaceContract().getInterface().toString(),
                                           wires);
                     }
                 }