diff --git a/extensions/resteasy-reactive/rest/deployment/src/main/java/io/quarkus/resteasy/reactive/server/deployment/ResteasyReactiveProcessor.java b/extensions/resteasy-reactive/rest/deployment/src/main/java/io/quarkus/resteasy/reactive/server/deployment/ResteasyReactiveProcessor.java
index 0e47168c16a72..b16114d300a54 100644
--- a/extensions/resteasy-reactive/rest/deployment/src/main/java/io/quarkus/resteasy/reactive/server/deployment/ResteasyReactiveProcessor.java
+++ b/extensions/resteasy-reactive/rest/deployment/src/main/java/io/quarkus/resteasy/reactive/server/deployment/ResteasyReactiveProcessor.java
@@ -14,7 +14,6 @@
 
 import java.io.File;
 import java.io.IOException;
-import java.lang.reflect.Modifier;
 import java.nio.file.Path;
 import java.util.ArrayDeque;
 import java.util.ArrayList;
@@ -854,18 +853,6 @@ private FilterClassIntrospector createFilterClassIntrospector() {
         return ab.get();
     }
 
-    @BuildStep
-    EndpointValidationPredicatesBuildItem createSpringRestControllerPredicate() {
-        Predicate<ClassInfo> predicate = new Predicate<ClassInfo>() {
-            @Override
-            public boolean test(ClassInfo classInfo) {
-                return Modifier.isInterface(classInfo.flags())
-                        || Modifier.isAbstract(classInfo.flags());
-            }
-        };
-        return new EndpointValidationPredicatesBuildItem(predicate);
-    }
-
     // We want to add @Typed to resources, beanparams and providers so that they can be resolved as CDI bean using purely their
     // class as a bean type. This removes any ambiguity that potential subclasses may have.
     @BuildStep
diff --git a/independent-projects/resteasy-reactive/common/processor/src/main/java/org/jboss/resteasy/reactive/common/processor/EndpointIndexer.java b/independent-projects/resteasy-reactive/common/processor/src/main/java/org/jboss/resteasy/reactive/common/processor/EndpointIndexer.java
index 63aa10ffb1b6b..ae5576b31d7a2 100644
--- a/independent-projects/resteasy-reactive/common/processor/src/main/java/org/jboss/resteasy/reactive/common/processor/EndpointIndexer.java
+++ b/independent-projects/resteasy-reactive/common/processor/src/main/java/org/jboss/resteasy/reactive/common/processor/EndpointIndexer.java
@@ -88,6 +88,7 @@
 import java.nio.charset.StandardCharsets;
 import java.util.AbstractMap;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.HashMap;
@@ -268,7 +269,7 @@ protected EndpointIndexer(Builder<T, ?, METHOD> builder) {
         this.isDisabledCreator = builder.isDisabledCreator;
         this.skipMethodParameter = builder.skipMethodParameter;
         this.skipNotRestParameters = builder.skipNotRestParameters;
-        this.validateEndpoint = builder.validateEndpoint;
+        this.validateEndpoint = builder.defaultPredicate;
     }
 
     public Optional<ResourceClass> createEndpoints(ClassInfo classInfo, boolean considerApplication) {
@@ -1714,7 +1715,13 @@ public boolean handleMultipartForReturnType(AdditionalWriters additionalWriters,
         private Function<ClassInfo, Supplier<Boolean>> isDisabledCreator = null;
 
         private Predicate<Map<DotName, AnnotationInstance>> skipMethodParameter = null;
-        private List<Predicate<ClassInfo>> validateEndpoint = null;
+        private List<Predicate<ClassInfo>> defaultPredicate = Arrays.asList(new Predicate<>() {
+            @Override
+            public boolean test(ClassInfo classInfo) {
+                return Modifier.isInterface(classInfo.flags())
+                        || Modifier.isAbstract(classInfo.flags());
+            }
+        });
 
         private boolean skipNotRestParameters = false;
 
@@ -1852,7 +1859,10 @@ public B setSkipMethodParameter(
         }
 
         public B setValidateEndpoint(List<Predicate<ClassInfo>> validateEndpoint) {
-            this.validateEndpoint = validateEndpoint;
+            List<Predicate<ClassInfo>> predicates = new ArrayList<>(validateEndpoint.size() + 1);
+            predicates.addAll(validateEndpoint);
+            predicates.addAll(this.defaultPredicate);
+            this.defaultPredicate = predicates;
             return (B) this;
         }