diff --git a/.github/workflows/dependency-review.yml b/.github/workflows/dependency-review.yml
index 720e66d9d0..8e46de5740 100644
--- a/.github/workflows/dependency-review.yml
+++ b/.github/workflows/dependency-review.yml
@@ -21,7 +21,7 @@ jobs:
       - name: Checkout Repository
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - name: Dependency Review
-        uses: actions/dependency-review-action@a6993e2c61fd5dc440b409aa1d6904921c5e1894 # v4.3.5
+        uses: actions/dependency-review-action@4081bf99e2866ebe428fc0477b69eb4fcda7220a # v4.4.0
         with:
           license-check: false
           comment-summary-in-pr: on-failure
diff --git a/.github/workflows/qodana.yml b/.github/workflows/qodana.yml
index 9cd2ef193d..c0f231b090 100644
--- a/.github/workflows/qodana.yml
+++ b/.github/workflows/qodana.yml
@@ -63,7 +63,7 @@ jobs:
           cache-encryption-key: ${{ secrets.GRADLE_ENCRYPTION_KEY }}
           arguments: check -x test
       - name: Qodana - Code Inspection
-        uses: JetBrains/qodana-action@4f04143e8d52028fee27c2a219c8856035094962 # v2024.2.5
+        uses: JetBrains/qodana-action@31d6f3309b31c566758e1314a3d9ef0dff75ecbd # v2024.2.6
         env:
           QODANA_TOKEN: ${{ secrets.QODANA_TOKEN }}
         with:
diff --git a/.github/workflows/spelling.yml b/.github/workflows/spelling.yml
index ff6a506952..4222ba5b60 100644
--- a/.github/workflows/spelling.yml
+++ b/.github/workflows/spelling.yml
@@ -34,4 +34,4 @@ jobs:
             objects.githubusercontent.com:443
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - name: Typos
-        uses: crate-ci/typos@0d9e0c2c1bd7f770f6eb90f87780848ca02fc12c # v1.26.8
+        uses: crate-ci/typos@d01f29c66d1bf1a08730750f61d86c210b0d039d # v1.27.0
diff --git a/caffeine/src/javaPoet/java/com/github/benmanes/caffeine/cache/LocalCacheFactoryGenerator.java b/caffeine/src/javaPoet/java/com/github/benmanes/caffeine/cache/LocalCacheFactoryGenerator.java
index c81e2061f3..d61f60c99e 100644
--- a/caffeine/src/javaPoet/java/com/github/benmanes/caffeine/cache/LocalCacheFactoryGenerator.java
+++ b/caffeine/src/javaPoet/java/com/github/benmanes/caffeine/cache/LocalCacheFactoryGenerator.java
@@ -25,7 +25,6 @@
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
-import java.nio.file.Paths;
 import java.time.Year;
 import java.time.ZoneId;
 import java.util.ArrayList;
@@ -144,6 +143,7 @@ private NavigableMap<String, ImmutableSet<Feature>> getClassNameToFeatures() {
     return classNameToFeatures;
   }
 
+  @SuppressWarnings("SetsImmutableEnumSetIterable")
   private ImmutableSet<Feature> getFeatures(List<Object> combination) {
     var features = new LinkedHashSet<Feature>();
     features.add(((Boolean) combination.get(0)) ? Feature.STRONG_KEYS : Feature.WEAK_KEYS);
@@ -156,6 +156,7 @@ private ImmutableSet<Feature> getFeatures(List<Object> combination) {
     if (features.contains(Feature.MAXIMUM_WEIGHT)) {
       features.remove(Feature.MAXIMUM_SIZE);
     }
+    // In featureByIndex order for class naming
     return ImmutableSet.copyOf(features);
   }
 
@@ -164,6 +165,7 @@ private Set<List<Object>> combinations() {
     return Sets.cartesianProduct(sets);
   }
 
+  @SuppressWarnings("SetsImmutableEnumSetIterable")
   private TypeSpec makeLocalCacheSpec(String className,
       boolean isFinal, ImmutableSet<Feature> features) {
     TypeName superClass;
@@ -174,8 +176,9 @@ private TypeSpec makeLocalCacheSpec(String className,
       generateFeatures = features;
       superClass = BOUNDED_LOCAL_CACHE;
     } else {
+      // Requires that parentFeatures is in featureByIndex order for super class naming
       parentFeatures = ImmutableSet.copyOf(Iterables.limit(features, features.size() - 1));
-      generateFeatures = ImmutableSet.of(features.asList().get(features.size() - 1));
+      generateFeatures = Sets.immutableEnumSet(features.asList().get(features.size() - 1));
       superClass = ParameterizedTypeName.get(ClassName.bestGuess(
           encode(Feature.makeClassName(parentFeatures))), kTypeVar, vTypeVar);
     }
@@ -208,6 +211,6 @@ private static String encode(String className) {
   }
 
   public static void main(String[] args) throws FormatterException, IOException {
-    new LocalCacheFactoryGenerator(Paths.get(args[0])).generate();
+    new LocalCacheFactoryGenerator(Path.of(args[0])).generate();
   }
 }
diff --git a/caffeine/src/javaPoet/java/com/github/benmanes/caffeine/cache/NodeFactoryGenerator.java b/caffeine/src/javaPoet/java/com/github/benmanes/caffeine/cache/NodeFactoryGenerator.java
index 85df35469f..ae4889c348 100644
--- a/caffeine/src/javaPoet/java/com/github/benmanes/caffeine/cache/NodeFactoryGenerator.java
+++ b/caffeine/src/javaPoet/java/com/github/benmanes/caffeine/cache/NodeFactoryGenerator.java
@@ -25,7 +25,6 @@
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
-import java.nio.file.Paths;
 import java.time.Year;
 import java.time.ZoneId;
 import java.util.ArrayList;
@@ -146,6 +145,7 @@ private NavigableMap<String, ImmutableSet<Feature>> getClassNameToFeatures() {
     return classNameToFeatures;
   }
 
+  @SuppressWarnings("SetsImmutableEnumSetIterable")
   private ImmutableSet<Feature> getFeatures(List<Object> combination) {
     var features = new LinkedHashSet<Feature>();
     features.add((Feature) combination.get(0));
@@ -158,9 +158,11 @@ private ImmutableSet<Feature> getFeatures(List<Object> combination) {
     if (features.contains(Feature.MAXIMUM_WEIGHT)) {
       features.remove(Feature.MAXIMUM_SIZE);
     }
+    // In featureByIndex order for class naming
     return ImmutableSet.copyOf(features);
   }
 
+  @SuppressWarnings("SetsImmutableEnumSetIterable")
   private TypeSpec makeNodeSpec(String className, boolean isFinal, ImmutableSet<Feature> features) {
     TypeName superClass;
     ImmutableSet<Feature> parentFeatures;
@@ -170,8 +172,9 @@ private TypeSpec makeNodeSpec(String className, boolean isFinal, ImmutableSet<Fe
       generateFeatures = features;
       superClass = TypeName.OBJECT;
     } else {
+      // Requires that parentFeatures is in featureByIndex order for super class naming
       parentFeatures = ImmutableSet.copyOf(Iterables.limit(features, features.size() - 1));
-      generateFeatures = ImmutableSet.of(features.asList().get(features.size() - 1));
+      generateFeatures = Sets.immutableEnumSet(features.asList().get(features.size() - 1));
       superClass = ParameterizedTypeName.get(ClassName.get(PACKAGE_NAME,
           encode(Feature.makeClassName(parentFeatures))), kTypeVar, vTypeVar);
     }
@@ -215,6 +218,6 @@ private static String encode(String className) {
   }
 
   public static void main(String[] args) throws FormatterException, IOException {
-    new NodeFactoryGenerator(Paths.get(args[0])).generate();
+    new NodeFactoryGenerator(Path.of(args[0])).generate();
   }
 }
diff --git a/caffeine/src/test/java/com/github/benmanes/caffeine/cache/TimerWheelTest.java b/caffeine/src/test/java/com/github/benmanes/caffeine/cache/TimerWheelTest.java
index 6bd2c460d2..e89d4ab76d 100644
--- a/caffeine/src/test/java/com/github/benmanes/caffeine/cache/TimerWheelTest.java
+++ b/caffeine/src/test/java/com/github/benmanes/caffeine/cache/TimerWheelTest.java
@@ -294,7 +294,7 @@ public void getExpirationDelay_fuzzy(long clock, long duration, long[] times) {
 
   @DataProvider(name = "clock")
   public Iterator<Object> providesClock() {
-    return LongStream.of(CLOCKS).mapToObj(o -> (Object) o).iterator();
+    return LongStream.of(CLOCKS).mapToObj(Object.class::cast).iterator();
   }
 
   @DataProvider(name = "schedule")
diff --git a/caffeine/src/test/java/com/github/benmanes/caffeine/cache/testing/CacheGenerator.java b/caffeine/src/test/java/com/github/benmanes/caffeine/cache/testing/CacheGenerator.java
index f16dc19ede..7ed1e03004 100644
--- a/caffeine/src/test/java/com/github/benmanes/caffeine/cache/testing/CacheGenerator.java
+++ b/caffeine/src/test/java/com/github/benmanes/caffeine/cache/testing/CacheGenerator.java
@@ -89,61 +89,64 @@ public static void initialize(CacheContext context) {
   @SuppressWarnings("IdentityConversion")
   private Set<List<Object>> combinations() {
     var asyncLoader = ImmutableSet.of(true, false);
-    var loaders = ImmutableSet.copyOf(cacheSpec.loader());
     var keys = filterTypes(options.keys(), cacheSpec.keys());
     var values = filterTypes(options.values(), cacheSpec.values());
     var statistics = filterTypes(options.stats(), cacheSpec.stats());
     var computations = filterTypes(options.compute(), cacheSpec.compute());
+    var loaders = Sets.immutableEnumSet(Arrays.asList(cacheSpec.loader()));
     var implementations = filterTypes(options.implementation(), cacheSpec.implementation());
 
     if (isAsyncOnly) {
       values = values.contains(ReferenceType.STRONG)
-          ? ImmutableSet.of(ReferenceType.STRONG)
+          ? Sets.immutableEnumSet(ReferenceType.STRONG)
           : ImmutableSet.of();
-      computations = Sets.intersection(computations, Set.of(Compute.ASYNC));
+      computations = Sets.intersection(computations,
+          Sets.immutableEnumSet(Compute.ASYNC)).immutableCopy();
     }
-    if (!isGuavaCompatible || isAsyncOnly || computations.equals(ImmutableSet.of(Compute.ASYNC))) {
-      implementations = Sets.difference(implementations, Set.of(Implementation.Guava));
+    if (!isGuavaCompatible || isAsyncOnly
+        || computations.equals(Sets.immutableEnumSet(Compute.ASYNC))) {
+      implementations = Sets.difference(implementations,
+          Sets.immutableEnumSet(Implementation.Guava)).immutableCopy();
     }
-    if (computations.equals(ImmutableSet.of(Compute.SYNC))) {
+    if (computations.equals(Sets.immutableEnumSet(Compute.SYNC))) {
       asyncLoader = ImmutableSet.of(false);
     }
 
     if (isLoadingOnly) {
-      loaders = Sets.difference(loaders, Set.of(Loader.DISABLED)).immutableCopy();
+      loaders = Sets.difference(loaders, Sets.immutableEnumSet(Loader.DISABLED)).immutableCopy();
     }
 
-    if (computations.isEmpty() || implementations.isEmpty()
-        || keys.isEmpty() || values.isEmpty()) {
+    if (computations.isEmpty() || implementations.isEmpty() || keys.isEmpty() || values.isEmpty()) {
       return ImmutableSet.of();
     }
     return Sets.cartesianProduct(
-        ImmutableSet.copyOf(cacheSpec.initialCapacity()),
-        ImmutableSet.copyOf(statistics),
-        ImmutableSet.copyOf(cacheSpec.weigher()),
-        ImmutableSet.copyOf(cacheSpec.maximumSize()),
-        ImmutableSet.copyOf(cacheSpec.expiry()),
-        ImmutableSet.copyOf(cacheSpec.expireAfterAccess()),
-        ImmutableSet.copyOf(cacheSpec.expireAfterWrite()),
-        ImmutableSet.copyOf(cacheSpec.refreshAfterWrite()),
-        ImmutableSet.copyOf(keys),
-        ImmutableSet.copyOf(values),
-        ImmutableSet.copyOf(cacheSpec.executor()),
-        ImmutableSet.copyOf(cacheSpec.scheduler()),
-        ImmutableSet.copyOf(cacheSpec.removalListener()),
-        ImmutableSet.copyOf(cacheSpec.evictionListener()),
-        ImmutableSet.copyOf(cacheSpec.population()),
-        ImmutableSet.copyOf(asyncLoader),
-        ImmutableSet.copyOf(computations),
-        ImmutableSet.copyOf(loaders),
-        ImmutableSet.copyOf(implementations));
+        Sets.immutableEnumSet(Arrays.asList(cacheSpec.initialCapacity())),
+        Sets.immutableEnumSet(statistics),
+        Sets.immutableEnumSet(Arrays.asList(cacheSpec.weigher())),
+        Sets.immutableEnumSet(Arrays.asList(cacheSpec.maximumSize())),
+        Sets.immutableEnumSet(Arrays.asList(cacheSpec.expiry())),
+        Sets.immutableEnumSet(Arrays.asList(cacheSpec.expireAfterAccess())),
+        Sets.immutableEnumSet(Arrays.asList(cacheSpec.expireAfterWrite())),
+        Sets.immutableEnumSet(Arrays.asList(cacheSpec.refreshAfterWrite())),
+        Sets.immutableEnumSet(keys),
+        Sets.immutableEnumSet(values),
+        Sets.immutableEnumSet(Arrays.asList(cacheSpec.executor())),
+        Sets.immutableEnumSet(Arrays.asList(cacheSpec.scheduler())),
+        Sets.immutableEnumSet(Arrays.asList(cacheSpec.removalListener())),
+        Sets.immutableEnumSet(Arrays.asList(cacheSpec.evictionListener())),
+        Sets.immutableEnumSet(Arrays.asList(cacheSpec.population())),
+        asyncLoader,
+        Sets.immutableEnumSet(computations),
+        Sets.immutableEnumSet(loaders),
+        Sets.immutableEnumSet(implementations));
   }
 
   /** Returns the set of options filtered if a specific type is specified. */
-  private static <T> Set<T> filterTypes(Optional<T> type, T[] options) {
+  private static <T extends Enum<T>> ImmutableSet<T> filterTypes(Optional<T> type, T[] options) {
     return type.isPresent()
-        ? Sets.intersection(Set.of(options), Set.of(type.orElseThrow()))
-        : ImmutableSet.copyOf(options);
+        ? Sets.intersection(Sets.immutableEnumSet(Arrays.asList(options)),
+            Set.of(type.orElseThrow())).immutableCopy()
+        : Sets.immutableEnumSet(Arrays.asList(options));
   }
 
   /** Returns a new cache context based on the combination. */
diff --git a/examples/coalescing-bulkloader-reactor/gradle/wrapper/gradle-wrapper.properties b/examples/coalescing-bulkloader-reactor/gradle/wrapper/gradle-wrapper.properties
index 8b6a1cac83..e7da39c493 100644
--- a/examples/coalescing-bulkloader-reactor/gradle/wrapper/gradle-wrapper.properties
+++ b/examples/coalescing-bulkloader-reactor/gradle/wrapper/gradle-wrapper.properties
@@ -1,4 +1,4 @@
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.11-rc-1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.11-rc-2-bin.zip
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
diff --git a/examples/graal-native/gradle/wrapper/gradle-wrapper.properties b/examples/graal-native/gradle/wrapper/gradle-wrapper.properties
index 8b6a1cac83..e7da39c493 100644
--- a/examples/graal-native/gradle/wrapper/gradle-wrapper.properties
+++ b/examples/graal-native/gradle/wrapper/gradle-wrapper.properties
@@ -1,4 +1,4 @@
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.11-rc-1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.11-rc-2-bin.zip
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
diff --git a/examples/hibernate/gradle/wrapper/gradle-wrapper.properties b/examples/hibernate/gradle/wrapper/gradle-wrapper.properties
index 8b6a1cac83..e7da39c493 100644
--- a/examples/hibernate/gradle/wrapper/gradle-wrapper.properties
+++ b/examples/hibernate/gradle/wrapper/gradle-wrapper.properties
@@ -1,4 +1,4 @@
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.11-rc-1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.11-rc-2-bin.zip
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
diff --git a/examples/indexable/gradle/wrapper/gradle-wrapper.properties b/examples/indexable/gradle/wrapper/gradle-wrapper.properties
index 8b6a1cac83..e7da39c493 100644
--- a/examples/indexable/gradle/wrapper/gradle-wrapper.properties
+++ b/examples/indexable/gradle/wrapper/gradle-wrapper.properties
@@ -1,4 +1,4 @@
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.11-rc-1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.11-rc-2-bin.zip
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
diff --git a/examples/resilience-failsafe/gradle/wrapper/gradle-wrapper.properties b/examples/resilience-failsafe/gradle/wrapper/gradle-wrapper.properties
index 8b6a1cac83..e7da39c493 100644
--- a/examples/resilience-failsafe/gradle/wrapper/gradle-wrapper.properties
+++ b/examples/resilience-failsafe/gradle/wrapper/gradle-wrapper.properties
@@ -1,4 +1,4 @@
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.11-rc-1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.11-rc-2-bin.zip
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
diff --git a/examples/write-behind-rxjava/gradle/wrapper/gradle-wrapper.properties b/examples/write-behind-rxjava/gradle/wrapper/gradle-wrapper.properties
index 8b6a1cac83..e7da39c493 100644
--- a/examples/write-behind-rxjava/gradle/wrapper/gradle-wrapper.properties
+++ b/examples/write-behind-rxjava/gradle/wrapper/gradle-wrapper.properties
@@ -1,4 +1,4 @@
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.11-rc-1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.11-rc-2-bin.zip
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
diff --git a/gradle/config/spotbugs/exclude.xml b/gradle/config/spotbugs/exclude.xml
index 8beeaabeb2..2b787bc063 100644
--- a/gradle/config/spotbugs/exclude.xml
+++ b/gradle/config/spotbugs/exclude.xml
@@ -678,4 +678,8 @@
     <Class name="com.github.benmanes.caffeine.cache.issues.Issue859Test$TestRun"/>
     <Bug pattern="URF_UNREAD_FIELD"/>
   </Match>
+  <Match>
+    <Class name="com.github.benmanes.caffeine.guava.CaffeinatedGuavaTest"/>
+    <Bug pattern="UTAO_JUNIT_ASSERTION_ODDITIES_NO_ASSERT"/>
+  </Match>
 </FindBugsFilter>
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 8a312f2b38..9a3a8cb9f3 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -4,11 +4,11 @@ auto-value = "1.11.0"
 awaitility = "4.2.2"
 bcel = "6.10.0"
 bnd = "7.0.0"
-bouncycastle-jdk18on = "1.78.1"
+bouncycastle-jdk18on = "1.79"
 cache2k = "2.6.1.Final"
 caffeine = "3.1.8"
-checker-framework = "3.48.1"
-checkstyle = "10.18.2"
+checker-framework = "3.48.2"
+checkstyle = "10.20.0"
 coherence = "22.06.2"
 commons-collections4 = "4.4"
 commons-compress = "1.27.1"
@@ -19,12 +19,12 @@ commons-text = "1.12.0"
 concurrentlinkedhashmap = "1.4.2"
 config = "1.4.3"
 coveralls = "2.12.2"
-dependency-check = "11.0.0"
+dependency-check = "11.1.0"
 eclipse-collections = "12.0.0.M3"
 ehcache3 = "3.10.8"
 errorprone = "2.35.1"
 errorprone-plugin = "4.1.0"
-errorprone-support = "0.18.0"
+errorprone-support = "0.19.0"
 expiring-map = "0.5.11"
 fast-filter = "1.0.2"
 fastutil = "8.5.15"
@@ -42,7 +42,7 @@ hazelcast = "5.3.7"
 httpclient = "4.5.14"
 idea = "1.1.9"
 jackrabbit = "1.70.0"
-jackson = "2.18.0"
+jackson = "2.18.1"
 jacoco = "0.8.12"
 jakarta-inject = "2.0.1"
 jamm = "0.4.0"
@@ -68,7 +68,7 @@ kotlin = "2.0.21"
 lincheck = "2.34"
 mockito = "5.14.2"
 nexus-publish = "2.0.0"
-nullaway = "0.12.0"
+nullaway = "0.12.1"
 nullaway-plugin = "2.1.0"
 okhttp-bom = "4.12.0"
 okio-bom = "3.9.1"
@@ -85,8 +85,8 @@ slf4j-test = "3.0.1"
 snakeyaml = "2.3"
 sonarqube = "5.1.0.4882"
 spotbugs = "4.8.6"
-spotbugs-contrib = "7.6.5"
-spotbugs-plugin = "6.0.25"
+spotbugs-contrib = "7.6.6"
+spotbugs-plugin = "6.0.26"
 stream = "2.9.8"
 tcache = "2.0.1"
 testng = "7.10.2"
@@ -96,7 +96,7 @@ versions = "0.51.0"
 xz = "1.10"
 ycsb = "0.17.0"
 zero-allocation-hashing = "0.26ea0"
-zstd = "1.5.6-6"
+zstd = "1.5.6-7"
 
 [libraries]
 asm-bom = { module = "org.ow2.asm:asm-bom", version.ref = "asm" }
diff --git a/gradle/plugins/src/main/kotlin/lifecycle/java-library.caffeine.gradle.kts b/gradle/plugins/src/main/kotlin/lifecycle/java-library.caffeine.gradle.kts
index c3bb36a467..36a0ee9b47 100644
--- a/gradle/plugins/src/main/kotlin/lifecycle/java-library.caffeine.gradle.kts
+++ b/gradle/plugins/src/main/kotlin/lifecycle/java-library.caffeine.gradle.kts
@@ -20,6 +20,7 @@ dependencies {
 
 val javaVersion = JavaLanguageVersion.of(System.getenv("JAVA_VERSION")?.toIntOrNull() ?: 11)
 val javaVendor = System.getenv("JAVA_VENDOR")?.let { JvmVendorSpec.matching(it) }
+val javaLtsVersion = JavaLanguageVersion.of(21)
 java.toolchain {
   languageVersion = javaVersion
   vendor = javaVendor
@@ -33,7 +34,7 @@ tasks.withType<JavaCompile>().configureEach {
 
   javaCompiler = javaToolchains.compilerFor {
     // jdk 17+ is required by compiler plugins, e.g. error-prone
-    languageVersion = maxOf(javaVersion, JavaLanguageVersion.of(21))
+    languageVersion = maxOf(javaVersion, javaLtsVersion)
   }
 
   options.compilerArgs.addAll(listOf("-Xlint:all", "-Xlint:-auxiliaryclass", "-Xlint:-classfile",
@@ -88,9 +89,8 @@ tasks.withType<Javadoc>().configureEach {
     use()
     quiet()
     noTimestamp()
-    if (javaVersion.canCompileOrRun(18)) {
-      addStringOption("-link-modularity-mismatch", "info")
-    }
+    addStringOption("-release", javaVersion.toString())
+    addStringOption("-link-modularity-mismatch", "info")
     links(
       "https://checkerframework.org/api/",
       "https://errorprone.info/api/latest/",
@@ -104,4 +104,7 @@ tasks.withType<Javadoc>().configureEach {
       dependsOn(":caffeine:javadoc")
     }
   }
+  javadocTool = javaToolchains.javadocToolFor {
+    languageVersion = maxOf(javaVersion, javaLtsVersion)
+  }
 }
diff --git a/gradle/plugins/src/main/kotlin/lifecycle/testing.caffeine.gradle.kts b/gradle/plugins/src/main/kotlin/lifecycle/testing.caffeine.gradle.kts
index 4aeac33486..06214870cc 100644
--- a/gradle/plugins/src/main/kotlin/lifecycle/testing.caffeine.gradle.kts
+++ b/gradle/plugins/src/main/kotlin/lifecycle/testing.caffeine.gradle.kts
@@ -30,10 +30,8 @@ dependencies {
 tasks.withType<Test>().configureEach {
   inputs.property("javaVendor", java.toolchain.vendor.get().toString())
 
+  // Use --debug-jvm to remotely attach to the test task
   jvmArgs("-XX:SoftRefLRUPolicyMSPerMB=0", "-XX:+EnableDynamicAgentLoading", "-Xshare:off")
-  if ("debug" in systemProperties) {
-    jvmArgs("-Xdebug", "-Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=5005")
-  }
   jvmArgs(defaultJvmArgs())
   if (isCI()) {
     reports.junitXml.includeSystemOutLog = false
diff --git a/gradle/plugins/src/main/kotlin/quality/errorprone.caffeine.gradle.kts b/gradle/plugins/src/main/kotlin/quality/errorprone.caffeine.gradle.kts
index 7245ed8ec4..39abfb54ee 100644
--- a/gradle/plugins/src/main/kotlin/quality/errorprone.caffeine.gradle.kts
+++ b/gradle/plugins/src/main/kotlin/quality/errorprone.caffeine.gradle.kts
@@ -81,6 +81,7 @@ fun errorChecks() = listOf(
 fun disabledChecks() = listOf(
   "AvoidObjectArrays",
   "AndroidJdkLibsChecker",
+  "ConstantNaming",
   "IsInstanceLambdaUsage",
   "Java7ApiChecker",
   "Java8ApiChecker",
@@ -88,6 +89,7 @@ fun disabledChecks() = listOf(
   "MissingSummary",
   "MultipleTopLevelClasses",
   "PatternMatchingInstanceof",
+  "Slf4jLoggerDeclaration",
   "StaticImport",
   "SuppressWarningsWithoutExplanation",
   "UngroupedOverloads",
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 8b6a1cac83..e7da39c493 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,4 +1,4 @@
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.11-rc-1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.11-rc-2-bin.zip
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
diff --git a/guava/src/test/java/com/github/benmanes/caffeine/guava/compatibility/CacheReferencesTest.java b/guava/src/test/java/com/github/benmanes/caffeine/guava/compatibility/CacheReferencesTest.java
index 7660f6d2b6..3c9577afe5 100644
--- a/guava/src/test/java/com/github/benmanes/caffeine/guava/compatibility/CacheReferencesTest.java
+++ b/guava/src/test/java/com/github/benmanes/caffeine/guava/compatibility/CacheReferencesTest.java
@@ -28,6 +28,7 @@
 import com.google.common.cache.LoadingCache;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Iterables;
+import com.google.common.collect.Sets;
 
 import junit.framework.TestCase;
 
@@ -49,8 +50,8 @@ public class CacheReferencesTest extends TestCase {
 
   private static CacheBuilderFactory factoryWithAllKeyStrengths() {
     return new CacheBuilderFactory()
-        .withKeyStrengths(ImmutableSet.of(STRONG, Strength.WEAK))
-        .withValueStrengths(ImmutableSet.of(STRONG, Strength.WEAK, Strength.SOFT));
+        .withKeyStrengths(Sets.immutableEnumSet(STRONG, Strength.WEAK))
+        .withValueStrengths(Sets.immutableEnumSet(STRONG, Strength.WEAK, Strength.SOFT));
   }
 
   private static Iterable<LoadingCache<Key, String>> caches() {
diff --git a/guava/src/test/java/com/github/benmanes/caffeine/guava/compatibility/EmptyCachesTest.java b/guava/src/test/java/com/github/benmanes/caffeine/guava/compatibility/EmptyCachesTest.java
index 3fea838d1a..0e729d09d9 100644
--- a/guava/src/test/java/com/github/benmanes/caffeine/guava/compatibility/EmptyCachesTest.java
+++ b/guava/src/test/java/com/github/benmanes/caffeine/guava/compatibility/EmptyCachesTest.java
@@ -35,6 +35,7 @@
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Iterables;
 import com.google.common.collect.Maps;
+import com.google.common.collect.Sets;
 import com.google.common.testing.EqualsTester;
 
 import junit.framework.TestCase;
@@ -316,8 +317,8 @@ private static Iterable<LoadingCache<Object, Object>> caches() {
 
   private static CacheBuilderFactory cacheFactory() {
     return new CacheBuilderFactory()
-        .withKeyStrengths(ImmutableSet.of(Strength.STRONG, Strength.WEAK))
-        .withValueStrengths(ImmutableSet.copyOf(Strength.values()))
+        .withKeyStrengths(Sets.immutableEnumSet(Strength.STRONG, Strength.WEAK))
+        .withValueStrengths(Sets.immutableEnumSet(asList(Strength.values())))
         .withConcurrencyLevels(ImmutableSet.of(1, 4, 16, 64))
         .withMaximumSizes(ImmutableSet.of(0, 1, 10, 100, 1000))
         .withInitialCapacities(ImmutableSet.of(0, 1, 10, 100, 1000))
diff --git a/guava/src/test/java/com/github/benmanes/caffeine/guava/compatibility/PopulatedCachesTest.java b/guava/src/test/java/com/github/benmanes/caffeine/guava/compatibility/PopulatedCachesTest.java
index 1521a3c7cc..9fef4d0d7e 100644
--- a/guava/src/test/java/com/github/benmanes/caffeine/guava/compatibility/PopulatedCachesTest.java
+++ b/guava/src/test/java/com/github/benmanes/caffeine/guava/compatibility/PopulatedCachesTest.java
@@ -22,6 +22,7 @@
 import static java.util.concurrent.TimeUnit.SECONDS;
 import static org.junit.Assert.assertThrows;
 
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.List;
 import java.util.Map;
@@ -39,6 +40,7 @@
 import com.google.common.collect.Iterators;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
+import com.google.common.collect.Sets;
 import com.google.common.testing.EqualsTester;
 
 import junit.framework.TestCase;
@@ -314,8 +316,8 @@ private static CacheBuilderFactory cacheFactory() {
     // so more than (maximumSize / #segments) keys could get assigned to the same segment, which
     // would cause one to be evicted.
     return new CacheBuilderFactory()
-        .withKeyStrengths(ImmutableSet.of(Strength.STRONG, Strength.WEAK))
-        .withValueStrengths(ImmutableSet.copyOf(Strength.values()))
+        .withKeyStrengths(Sets.immutableEnumSet(Strength.STRONG, Strength.WEAK))
+        .withValueStrengths(Sets.immutableEnumSet(Arrays.asList(Strength.values())))
         .withConcurrencyLevels(ImmutableSet.of(1, 4, 16, 64))
         .withMaximumSizes(ImmutableSet.of(400, 1000))
         .withInitialCapacities(ImmutableSet.of(0, 1, 10, 100, 1000))
diff --git a/simulator/src/main/java/com/github/benmanes/caffeine/cache/simulator/parser/AbstractTraceReader.java b/simulator/src/main/java/com/github/benmanes/caffeine/cache/simulator/parser/AbstractTraceReader.java
index 90a8ce37a5..24fb97216c 100644
--- a/simulator/src/main/java/com/github/benmanes/caffeine/cache/simulator/parser/AbstractTraceReader.java
+++ b/simulator/src/main/java/com/github/benmanes/caffeine/cache/simulator/parser/AbstractTraceReader.java
@@ -24,7 +24,7 @@
 import java.io.SequenceInputStream;
 import java.io.UncheckedIOException;
 import java.nio.file.Files;
-import java.nio.file.Paths;
+import java.nio.file.Path;
 import java.util.Iterator;
 import java.util.List;
 import java.util.function.UnaryOperator;
@@ -138,7 +138,7 @@ protected BufferedInputStream readInput(InputStream input) {
 
   /** Returns the input stream for the raw file. */
   private InputStream openFile() throws IOException {
-    var file = Paths.get(filePath);
+    var file = Path.of(filePath);
     if (Files.exists(file)) {
       return Files.newInputStream(file);
     }
diff --git a/simulator/src/main/java/com/github/benmanes/caffeine/cache/simulator/policy/Registry.java b/simulator/src/main/java/com/github/benmanes/caffeine/cache/simulator/policy/Registry.java
index 04777407e7..3e62d61ca4 100644
--- a/simulator/src/main/java/com/github/benmanes/caffeine/cache/simulator/policy/Registry.java
+++ b/simulator/src/main/java/com/github/benmanes/caffeine/cache/simulator/policy/Registry.java
@@ -21,6 +21,7 @@
 import static java.util.Locale.US;
 import static org.apache.commons.lang3.StringUtils.isNotBlank;
 
+import java.util.Arrays;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Set;
@@ -77,6 +78,7 @@
 import com.github.benmanes.caffeine.cache.simulator.policy.two_queue.TwoQueuePolicy;
 import com.google.auto.value.AutoValue;
 import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Sets;
 import com.typesafe.config.Config;
 
 /**
@@ -238,11 +240,11 @@ abstract static class Factory {
     abstract Class<? extends Policy> policyClass();
     abstract Function<Config, Set<Policy>> creator();
 
-    Set<Characteristic> characteristics() {
+    ImmutableSet<Characteristic> characteristics() {
       var policySpec = policyClass().getAnnotation(PolicySpec.class);
       return (policySpec == null)
           ? ImmutableSet.of()
-          : ImmutableSet.copyOf(policySpec.characteristics());
+          : Sets.immutableEnumSet(Arrays.asList(policySpec.characteristics()));
     }
 
     static Factory of(Class<? extends Policy> policyClass, Function<Config, Set<Policy>> creator) {
diff --git a/simulator/src/main/java/com/github/benmanes/caffeine/cache/simulator/policy/sampled/SampledPolicy.java b/simulator/src/main/java/com/github/benmanes/caffeine/cache/simulator/policy/sampled/SampledPolicy.java
index f3018d1ab3..ccc2bf4bfe 100644
--- a/simulator/src/main/java/com/github/benmanes/caffeine/cache/simulator/policy/sampled/SampledPolicy.java
+++ b/simulator/src/main/java/com/github/benmanes/caffeine/cache/simulator/policy/sampled/SampledPolicy.java
@@ -201,22 +201,21 @@ public enum EvictionPolicy {
     /** Evicts entries based on insertion order. */
     FIFO {
       @Override Node select(List<Node> sample, Random random, long tick) {
-        return sample.stream().min(Comparator.comparingLong(
-            node -> node.insertionTime)).orElseThrow();
+        return Collections.min(sample, Comparator.comparingLong(node -> node.insertionTime));
       }
     },
 
     /** Evicts entries based on how recently they are used, with the least recent evicted first. */
     LRU {
       @Override Node select(List<Node> sample, Random random, long tick) {
-        return sample.stream().min(Comparator.comparingLong(node -> node.accessTime)).orElseThrow();
+        return Collections.min(sample, Comparator.comparingLong(node -> node.accessTime));
       }
     },
 
     /** Evicts entries based on how recently they are used, with the least recent evicted first. */
     MRU {
       @Override Node select(List<Node> sample, Random random, long tick) {
-        return sample.stream().max(Comparator.comparingLong(node -> node.accessTime)).orElseThrow();
+        return Collections.max(sample, Comparator.comparingLong(node -> node.accessTime));
       }
     },
 
@@ -225,7 +224,7 @@ public enum EvictionPolicy {
      */
     LFU {
       @Override Node select(List<Node> sample, Random random, long tick) {
-        return sample.stream().min(Comparator.comparingInt(node -> node.frequency)).orElseThrow();
+        return Collections.min(sample, Comparator.comparingInt(node -> node.frequency));
       }
     },
 
@@ -234,7 +233,7 @@ public enum EvictionPolicy {
      */
     MFU {
       @Override Node select(List<Node> sample, Random random, long tick) {
-        return sample.stream().max(Comparator.comparingInt(node -> node.frequency)).orElseThrow();
+        return Collections.max(sample, Comparator.comparingInt(node -> node.frequency));
       }
     },
 
@@ -249,8 +248,7 @@ public enum EvictionPolicy {
     /** Evicts entries based on how frequently they are used divided by their age. */
     HYPERBOLIC {
       @Override Node select(List<Node> sample, Random random, long tick) {
-        return sample.stream().min(Comparator.comparingDouble(
-            node -> hyperbolic(node, tick))).orElseThrow();
+        return Collections.min(sample, Comparator.comparingDouble(node -> hyperbolic(node, tick)));
       }
       double hyperbolic(Node node, long tick) {
         return node.frequency / (double) (tick - node.insertionTime);