diff --git a/extensions/narayana-jta/deployment/src/main/java/io/quarkus/narayana/jta/deployment/NarayanaJtaProcessor.java b/extensions/narayana-jta/deployment/src/main/java/io/quarkus/narayana/jta/deployment/NarayanaJtaProcessor.java
index c661f5ea866b6..214fa3bf3ec0b 100644
--- a/extensions/narayana-jta/deployment/src/main/java/io/quarkus/narayana/jta/deployment/NarayanaJtaProcessor.java
+++ b/extensions/narayana-jta/deployment/src/main/java/io/quarkus/narayana/jta/deployment/NarayanaJtaProcessor.java
@@ -204,6 +204,11 @@ public void startRecoveryService(NarayanaJtaRecorder recorder,
     @BuildStep(onlyIf = IsTest.class)
     void testTx(BuildProducer<GeneratedBeanBuildItem> generatedBeanBuildItemBuildProducer,
             BuildProducer<AdditionalBeanBuildItem> additionalBeans) {
+
+        if (!testTransactionOnClassPath()) {
+            return;
+        }
+
         //generate the annotated interceptor with gizmo
         //all the logic is in the parent, but we don't have access to the
         //binding annotation here
@@ -219,6 +224,15 @@ void testTx(BuildProducer<GeneratedBeanBuildItem> generatedBeanBuildItemBuildPro
                 .addBeanClass(TEST_TRANSACTION).build());
     }
 
+    private static boolean testTransactionOnClassPath() {
+        try {
+            Class.forName(TEST_TRANSACTION, false, Thread.currentThread().getContextClassLoader());
+            return true;
+        } catch (ClassNotFoundException ignored) {
+            return false;
+        }
+    }
+
     @BuildStep
     public ContextConfiguratorBuildItem transactionContext(ContextRegistrationPhaseBuildItem contextRegistrationPhase) {
         return new ContextConfiguratorBuildItem(contextRegistrationPhase.getContext()
diff --git a/extensions/panache/hibernate-reactive-panache-common/deployment/src/main/java/io/quarkus/hibernate/reactive/panache/common/deployment/PanacheJpaCommonResourceProcessor.java b/extensions/panache/hibernate-reactive-panache-common/deployment/src/main/java/io/quarkus/hibernate/reactive/panache/common/deployment/PanacheJpaCommonResourceProcessor.java
index 307a82c770060..8190c8dfa5989 100644
--- a/extensions/panache/hibernate-reactive-panache-common/deployment/src/main/java/io/quarkus/hibernate/reactive/panache/common/deployment/PanacheJpaCommonResourceProcessor.java
+++ b/extensions/panache/hibernate-reactive-panache-common/deployment/src/main/java/io/quarkus/hibernate/reactive/panache/common/deployment/PanacheJpaCommonResourceProcessor.java
@@ -61,6 +61,11 @@ public final class PanacheJpaCommonResourceProcessor {
     @BuildStep(onlyIf = IsTest.class)
     void testTx(BuildProducer<GeneratedBeanBuildItem> generatedBeanBuildItemBuildProducer,
             BuildProducer<AdditionalBeanBuildItem> additionalBeans) {
+
+        if (!testReactiveTransactionOnClassPath()) {
+            return;
+        }
+
         //generate the annotated interceptor with gizmo
         //all the logic is in the parent, but we don't have access to the
         //binding annotation here
@@ -76,6 +81,15 @@ void testTx(BuildProducer<GeneratedBeanBuildItem> generatedBeanBuildItemBuildPro
                 .addBeanClass(TEST_REACTIVE_TRANSACTION).build());
     }
 
+    private static boolean testReactiveTransactionOnClassPath() {
+        try {
+            Class.forName(TEST_REACTIVE_TRANSACTION, false, Thread.currentThread().getContextClassLoader());
+            return true;
+        } catch (ClassNotFoundException ignored) {
+            return false;
+        }
+    }
+
     @BuildStep
     void registerInterceptors(BuildProducer<AdditionalBeanBuildItem> additionalBeans) {
         AdditionalBeanBuildItem.Builder builder = AdditionalBeanBuildItem.builder();