From ecb6ebc571dea0b9a2c968b1996a4280aa8ba84b Mon Sep 17 00:00:00 2001
From: Andreas Hufler <andreas.hufler@aboutbits.it>
Date: Fri, 27 Mar 2026 15:49:03 +0100
Subject: [PATCH 1/3] fix memory leak

---
 .../toolbox/reflection/util/ClassScannerUtil.java    | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/main/java/it/aboutbits/springboot/toolbox/reflection/util/ClassScannerUtil.java b/src/main/java/it/aboutbits/springboot/toolbox/reflection/util/ClassScannerUtil.java
index 9bcd0fc..e9ea1aa 100644
--- a/src/main/java/it/aboutbits/springboot/toolbox/reflection/util/ClassScannerUtil.java
+++ b/src/main/java/it/aboutbits/springboot/toolbox/reflection/util/ClassScannerUtil.java
@@ -6,16 +6,24 @@
 import org.jspecify.annotations.NullMarked;
 
 import java.lang.annotation.Annotation;
+import java.util.Arrays;
+import java.util.Map;
 import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
 import java.util.stream.Collectors;
 
 @NullMarked
 public final class ClassScannerUtil {
+    private static final Map<String, ClassScanner> CACHE = new ConcurrentHashMap<>();
+
     private ClassScannerUtil() {
     }
 
     public static ClassScanner getScannerForPackages(String... packages) {
-        return new ClassScanner(packages);
+        var cacheKey = Arrays.stream(packages)
+                .sorted()
+                .collect(Collectors.joining("|"));
+        return CACHE.computeIfAbsent(cacheKey, _ -> new ClassScanner(packages));
     }
 
     public static final class ClassScanner implements AutoCloseable {
@@ -54,7 +62,7 @@ public Set<Class<?>> getClassesAnnotatedWith(Class<? extends Annotation> clazz)
 
         @Override
         public void close() {
-            scanResult.close();
+            // No-op: this scanner is cached and its lifecycle is managed by ClassScannerUtil.
         }
     }
 }

From a073f8b6b323bfda658713a0340497b0053b5f00 Mon Sep 17 00:00:00 2001
From: AboutBits Tech <tech@aboutbits.it>
Date: Fri, 27 Mar 2026 14:53:11 +0000
Subject: [PATCH 2/3] 2.4.2-RC1

---
 pom.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pom.xml b/pom.xml
index a9f4f38..5b15e24 100644
--- a/pom.xml
+++ b/pom.xml
@@ -11,7 +11,7 @@
 
     <groupId>it.aboutbits</groupId>
     <artifactId>spring-boot-toolbox</artifactId>
-    <version>2.4.1</version>
+    <version>2.4.2-RC1</version>
     <description>Utility library for Spring Boot projects.</description>
     <packaging>jar</packaging>
 

From a547ba988301b7912e2a4bd475f3afa5821a4b89 Mon Sep 17 00:00:00 2001
From: Andreas Hufler <andreas.hufler@aboutbits.it>
Date: Thu, 9 Apr 2026 08:51:15 +0200
Subject: [PATCH 3/3] remove misleading auto-closeable

---
 .../toolbox/reflection/util/ClassScannerUtil.java          | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/src/main/java/it/aboutbits/springboot/toolbox/reflection/util/ClassScannerUtil.java b/src/main/java/it/aboutbits/springboot/toolbox/reflection/util/ClassScannerUtil.java
index e9ea1aa..195feb7 100644
--- a/src/main/java/it/aboutbits/springboot/toolbox/reflection/util/ClassScannerUtil.java
+++ b/src/main/java/it/aboutbits/springboot/toolbox/reflection/util/ClassScannerUtil.java
@@ -26,7 +26,7 @@ public static ClassScanner getScannerForPackages(String... packages) {
         return CACHE.computeIfAbsent(cacheKey, _ -> new ClassScanner(packages));
     }
 
-    public static final class ClassScanner implements AutoCloseable {
+    public static final class ClassScanner {
         private final ScanResult scanResult;
         private final String[] packages;
 
@@ -59,10 +59,5 @@ public Set<Class<?>> getClassesAnnotatedWith(Class<? extends Annotation> clazz)
                     ClassInfo::loadClass
             ).collect(Collectors.toSet());
         }
-
-        @Override
-        public void close() {
-            // No-op: this scanner is cached and its lifecycle is managed by ClassScannerUtil.
-        }
     }
 }