nit changes

Author: zarirhamza

dd-java-agent/instrumentation/synapse-3.0/src/main/java/datadog/trace/instrumentation/synapse3/SynapseClientWorkerInstrumentation.java

@@ -97,6 +97,15 @@ public static void responseReceived(
       if (null != error && null != span) {
         DECORATE.onError(span, error);
       }
+
+      if (null != span) {
+        if (null != httpResponse) {
+          DECORATE.onResponse(span, httpResponse);
+        }
+        if (null != error) {
+          DECORATE.onError(span, error);
+        }
+      }
       DECORATE.beforeFinish(scope.context());
       // no need to finish span because response event (which created the worker) does that
       scope.close();

dd-java-agent/instrumentation/undertow/undertow-2.0/src/main/java/datadog/trace/instrumentation/undertow/ExchangeEndSpanListener.java

@@ -30,16 +30,14 @@ public void exchangeEvent(HttpServerExchange exchange, NextListener nextListener
       if (throwable != null) {
         DECORATE.onError(span, throwable);
       }
-
       DECORATE.onResponse(span, exchange);
       DECORATE.beforeFinish(context);
-      continuation.cancel();
       span.finish();
-      nextListener.proceed();
     } else {
       DECORATE.beforeFinish(context);
-      continuation.cancel();
-      nextListener.proceed();
     }
+
+    continuation.cancel();
+    nextListener.proceed();
   }
 }