diff --git a/adapter-cqld4/src/main/java/io/nosqlbench/adapter/cqld4/Cqld4Space.java b/adapter-cqld4/src/main/java/io/nosqlbench/adapter/cqld4/Cqld4Space.java
index c203bacd1..196cc974a 100644
--- a/adapter-cqld4/src/main/java/io/nosqlbench/adapter/cqld4/Cqld4Space.java
+++ b/adapter-cqld4/src/main/java/io/nosqlbench/adapter/cqld4/Cqld4Space.java
@@ -92,7 +92,7 @@ public class Cqld4Space {
         }
 
 
-        NBConfiguration sslCfg = SSLKsFactory.get().getConfigModel().extractConfig(cfg);
+        NBConfiguration sslCfg = SSLKsFactory.get().getConfigModel().extract(cfg);
 
         SSLContext ctx = SSLKsFactory.get().getContext(sslCfg);
         if (ctx != null) {
diff --git a/engine-core/src/main/java/io/nosqlbench/engine/core/script/ScenariosExecutor.java b/engine-core/src/main/java/io/nosqlbench/engine/core/script/ScenariosExecutor.java
index 17fa42914..92e0100dc 100644
--- a/engine-core/src/main/java/io/nosqlbench/engine/core/script/ScenariosExecutor.java
+++ b/engine-core/src/main/java/io/nosqlbench/engine/core/script/ScenariosExecutor.java
@@ -228,6 +228,12 @@ public class ScenariosExecutor {
         return name;
     }
 
+    public synchronized void shutdownNow() {
+        if (!executor.isShutdown()) {
+            executor.shutdownNow();
+        }
+    }
+
     private static class SubmittedScenario {
         private final Scenario scenario;
         private final Future<ScenarioResult> resultFuture;
diff --git a/nbr/src/test/java/io/nosqlbench/engine/core/script/AsyncScriptIntegrationTests.java b/nbr/src/test/java/io/nosqlbench/engine/core/script/AsyncScriptIntegrationTests.java
index 29687033a..4668e71a8 100644
--- a/nbr/src/test/java/io/nosqlbench/engine/core/script/AsyncScriptIntegrationTests.java
+++ b/nbr/src/test/java/io/nosqlbench/engine/core/script/AsyncScriptIntegrationTests.java
@@ -51,7 +51,7 @@ public class AsyncScriptIntegrationTests {
         }
         String scenarioName = "scenario " + scriptname;
         System.out.println("=".repeat(29) + " Running ASYNC integration test for: " + scenarioName);
-        ScenariosExecutor e = new ScenariosExecutor(AsyncScriptIntegrationTests.class.getSimpleName() + ":" + scriptname, 1);
+        ScenariosExecutor executor = new ScenariosExecutor(AsyncScriptIntegrationTests.class.getSimpleName() + ":" + scriptname, 1);
         Scenario s = new Scenario(scenarioName, Scenario.Engine.Graalvm,"stdout:300");
 
         s.addScenarioScriptParams(paramsMap);
@@ -67,9 +67,10 @@ public class AsyncScriptIntegrationTests {
         }
         s.addScriptText(script);
 //        s.addScriptText("load('classpath:scripts/async/" + scriptname + ".js');");
-        e.execute(s);
-        ScenariosResults scenariosResults = e.awaitAllResults();
+        executor.execute(s);
+        ScenariosResults scenariosResults = executor.awaitAllResults();
         ScenarioResult scenarioResult = scenariosResults.getOne();
+        executor.shutdownNow();
         return scenarioResult;
     }