diff --git a/extensions/infinispan-client/deployment/src/main/java/io/quarkus/infinispan/client/deployment/devservices/InfinispanDevServiceProcessor.java b/extensions/infinispan-client/deployment/src/main/java/io/quarkus/infinispan/client/deployment/devservices/InfinispanDevServiceProcessor.java
index 436353068a1bd..a332c47b39a4f 100644
--- a/extensions/infinispan-client/deployment/src/main/java/io/quarkus/infinispan/client/deployment/devservices/InfinispanDevServiceProcessor.java
+++ b/extensions/infinispan-client/deployment/src/main/java/io/quarkus/infinispan/client/deployment/devservices/InfinispanDevServiceProcessor.java
@@ -18,7 +18,6 @@
 import org.infinispan.commons.util.Version;
 import org.infinispan.server.test.core.InfinispanContainer;
 import org.jboss.logging.Logger;
-import org.jetbrains.annotations.NotNull;
 
 import io.quarkus.deployment.Feature;
 import io.quarkus.deployment.IsNormal;
@@ -224,7 +223,6 @@ private RunningDevService startContainer(String clientName, DockerStatusBuildIte
                 .orElseGet(infinispanServerSupplier);
     }
 
-    @NotNull
     private RunningDevService getRunningDevService(String clientName, String containerId, Closeable closeable, String hosts,
             String username, String password, Map<String, String> config) {
         config.put(getConfigPrefix(clientName) + "hosts", hosts);
diff --git a/extensions/redis-cache/deployment/src/main/java/io/quarkus/cache/redis/deployment/RedisCacheProcessor.java b/extensions/redis-cache/deployment/src/main/java/io/quarkus/cache/redis/deployment/RedisCacheProcessor.java
index ca908f3006e97..22ccdb2353519 100644
--- a/extensions/redis-cache/deployment/src/main/java/io/quarkus/cache/redis/deployment/RedisCacheProcessor.java
+++ b/extensions/redis-cache/deployment/src/main/java/io/quarkus/cache/redis/deployment/RedisCacheProcessor.java
@@ -20,7 +20,6 @@
 import org.jboss.jandex.ParameterizedType;
 import org.jboss.jandex.Type;
 import org.jboss.logging.Logger;
-import org.jetbrains.annotations.NotNull;
 
 import io.quarkus.arc.deployment.UnremovableBeanBuildItem;
 import io.quarkus.cache.CompositeCacheKey;
@@ -103,7 +102,6 @@ void determineValueTypes(RedisCacheBuildRecorder recorder, CombinedIndexBuildIte
         recorder.setCacheValueTypes(valueTypes);
     }
 
-    @NotNull
     private static Map<String, String> valueTypesFromCacheResultAnnotation(CombinedIndexBuildItem combinedIndex) {
         Map<String, Set<Type>> valueTypesFromAnnotations = new HashMap<>();
 
diff --git a/extensions/resteasy-reactive/quarkus-resteasy-reactive-kotlin-serialization-common/runtime/src/main/java/io/quarkus/resteasy/reactive/kotlin/serialization/common/JsonBuilderCustomizer.java b/extensions/resteasy-reactive/quarkus-resteasy-reactive-kotlin-serialization-common/runtime/src/main/java/io/quarkus/resteasy/reactive/kotlin/serialization/common/JsonBuilderCustomizer.java
index 5bfab19d9e3b1..4948a28be2a12 100644
--- a/extensions/resteasy-reactive/quarkus-resteasy-reactive-kotlin-serialization-common/runtime/src/main/java/io/quarkus/resteasy/reactive/kotlin/serialization/common/JsonBuilderCustomizer.java
+++ b/extensions/resteasy-reactive/quarkus-resteasy-reactive-kotlin-serialization-common/runtime/src/main/java/io/quarkus/resteasy/reactive/kotlin/serialization/common/JsonBuilderCustomizer.java
@@ -1,7 +1,5 @@
 package io.quarkus.resteasy.reactive.kotlin.serialization.common;
 
-import org.jetbrains.annotations.NotNull;
-
 import kotlinx.serialization.json.JsonBuilder;
 
 /**
@@ -25,7 +23,7 @@ default int priority() {
         return DEFAULT_PRIORITY;
     }
 
-    default int compareTo(@NotNull JsonBuilderCustomizer o) {
+    default int compareTo(JsonBuilderCustomizer o) {
         return Integer.compare(o.priority(), priority());
     }
 }
diff --git a/integration-tests/gradle/src/main/resources/multi-source-project/src/main/java/org/acme/service/SimpleService.java b/integration-tests/gradle/src/main/resources/multi-source-project/src/main/java/org/acme/service/SimpleService.java
index b8df650a668c1..0f7635267e500 100644
--- a/integration-tests/gradle/src/main/resources/multi-source-project/src/main/java/org/acme/service/SimpleService.java
+++ b/integration-tests/gradle/src/main/resources/multi-source-project/src/main/java/org/acme/service/SimpleService.java
@@ -1,12 +1,9 @@
 package org.acme.service;
 
-import org.jetbrains.annotations.NotNull;
-
 import jakarta.enterprise.context.ApplicationScoped;
 
 @ApplicationScoped
 public class SimpleService {
-    @NotNull
     public String hello() {
         return "hello from JavaComponent";
     }