Merge remote-tracking branch 'origin/master' into 851-compatible-defa…

…ult-values

.github/workflows/ci-workflow.yml

@@ -13,42 +13,42 @@ jobs:
       PUBLISH_ARTIFACTS: true
 
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-java@v1
+      - uses: actions/checkout@v3
+      - uses: actions/setup-java@v3
         with:
+          distribution: 'temurin'
           java-version: 11
-      - uses: actions/cache@v2
-        with:
-          path: ~/.m2/repository
-          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-          restore-keys: |
-            ${{ runner.os }}-maven-
+          cache: 'maven'
 
       - name: Build with JDK 11
         run: mvn -B install --no-transfer-progress -DskipTests
 
-      - uses: actions/setup-java@v1
+      - uses: actions/setup-java@v3
         with:
-          java-version: 1.8
+          distribution: 'temurin'
+          java-version: 8
       - name: Test with JDK 8
         run: mvn -v && mvn -B test
 
-      - uses: actions/setup-java@v1
+      - uses: actions/setup-java@v3
         with:
+          distribution: 'temurin'
           java-version: 11
       - name: Test with JDK 11          
         run: mvn -v && mvn -B test
 
-      - uses: actions/setup-java@v1
+      - uses: actions/setup-java@v3
         with:
-          java-version: 16
-      - name: Test with JDK 16         
+          distribution: 'temurin'
+          java-version: 17
+      - name: Test with JDK 17         
         run: mvn -v && mvn -B test
 
       - name: Set up settings.xml for Sonatype
-        uses: actions/setup-java@v1
+        uses: actions/setup-java@v3
         with:
-          java-version: 1.8
+          distribution: 'temurin'
+          java-version: 8
 
       - name: Publish SNAPSHOT version to Sonatype (we can skip tests, since we only deploy, if the build workflow succeeded)
         run: mvn -v && mvn -B -P requireSnapshot --no-transfer-progress -DskipTests deploy --settings build/settings-sonatype.xml

.github/workflows/pr-workflow.yml

@@ -7,34 +7,33 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-java@v1
+      - uses: actions/checkout@v3
+      - uses: actions/setup-java@v3
         with:
+          distribution: 'temurin'
           java-version: 11
-      - uses: actions/cache@v2
-        with:
-          path: ~/.m2/repository
-          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-          restore-keys: |
-            ${{ runner.os }}-maven-
+          cache: 'maven'
 
       - name: Build with JDK 11
         run: mvn -B install --no-transfer-progress -DskipTests
 
-      - uses: actions/setup-java@v1
+      - uses: actions/setup-java@v3
         with:
-          java-version: 1.8
+          distribution: 'temurin'
+          java-version: 8
       - name: Test with JDK 8
         run: mvn -v && mvn -B test
 
-      - uses: actions/setup-java@v1
+      - uses: actions/setup-java@v3
         with:
+          distribution: 'temurin'
           java-version: 11
       - name: Test with JDK 11
         run: mvn -v && mvn -B test
 
-      - uses: actions/setup-java@v1
+      - uses: actions/setup-java@v3
         with:
-          java-version: 16
-      - name: Test with JDK 16
+          distribution: 'temurin'
+          java-version: 17
+      - name: Test with JDK 17
         run: mvn -v && mvn -B test

LICENSE.md

@@ -1,4 +1,4 @@
-Copyright (c) 2008-2020, Nathan Sweet
+Copyright (c) 2008-2022, Nathan Sweet
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

README.md

@@ -21,7 +21,6 @@ Please use the [Kryo mailing list](https://groups.google.com/forum/#!forum/kryo-
 - [Installation](#installation)
    * [With Maven](#with-maven)
    * [Without Maven](#without-maven)
-   * [On Android](#on-android)
    * [Building from source](#building-from-source)
 - [Quickstart](#quickstart)
 - [IO](#io)
@@ -89,6 +88,8 @@ Please use the [Kryo mailing list](https://groups.google.com/forum/#!forum/kryo-
 
 ## Recent releases
 
+* [5.3.0](https://github.com/EsotericSoftware/kryo/releases/tag/kryo-parent-5.3.0) - brings bug fixes and performance improvements.
+* [5.2.1](https://github.com/EsotericSoftware/kryo/releases/tag/kryo-parent-5.2.1) - brings minor bug fixes and improvements.
 * [5.2.0](https://github.com/EsotericSoftware/kryo/releases/tag/kryo-parent-5.2.0) - brings bug fixes for `RecordSerializer` and improvements. Important: If you are currently storing serialized `java.util.Record`, please see the [release notes](https://github.com/EsotericSoftware/kryo/releases/tag/kryo-parent-5.2.0) for upgrade instructions.
 * [5.1.1](https://github.com/EsotericSoftware/kryo/releases/tag/kryo-parent-5.1.1) - brings bug fixes for `CompatibleFieldSerializer` and removes dependency from versioned artifact
 * [5.1.0](https://github.com/EsotericSoftware/kryo/releases/tag/kryo-parent-5.1.0) - brings support for `java.util.Record` and improved support for older Android versions
@@ -110,7 +111,7 @@ To use the latest Kryo release in your application, use this dependency entry in
 <dependency>
    <groupId>com.esotericsoftware</groupId>
    <artifactId>kryo</artifactId>
-   <version>5.2.0</version>
+   <version>5.3.0</version>
 </dependency>
 ```
 
@@ -120,7 +121,7 @@ To use the latest Kryo release in a library you want to publish, use this depend
 <dependency>
    <groupId>com.esotericsoftware.kryo</groupId>
    <artifactId>kryo5</artifactId>
-   <version>5.2.0</version>
+   <version>5.3.0</version>
 </dependency>
 ```
 
@@ -137,31 +138,20 @@ To use the latest Kryo snapshot, use:
 <dependency>
    <groupId>com.esotericsoftware</groupId>
    <artifactId>kryo</artifactId>
-   <version>5.2.1-SNAPSHOT</version>
+   <version>5.3.1-SNAPSHOT</version>
 </dependency>
 <!-- for usage in a library that should be published: -->
 <dependency>
    <groupId>com.esotericsoftware.kryo</groupId>
    <artifactId>kryo5</artifactId>
-   <version>5.2.1-SNAPSHOT</version>
+   <version>5.3.1-SNAPSHOT</version>
 </dependency>
 ```
 
 ### Without Maven
 
 Not everyone is a Maven fan. Using Kryo without Maven requires placing the [Kryo JAR](#installation) on your classpath along with the dependency JARs found in [lib](https://github.com/EsotericSoftware/kryo/tree/master/lib).
 
-### On Android
-
-Kryo 5 **before 5.1.0** ships with Objenesis 3.1 which [currently supports](https://github.com/easymock/objenesis/issues/79) Android API >= 26. If you want to use these versions of Kryo with older Android APIs, you need to explicitely depend on Objensis 3.2.
-
-```
-implementation ('com.esotericsoftware:kryo:5.0.4') {
-  exclude group: "org.objenesis"
-}
-implementation 'org.objenesis:objenesis:3.2'
-```
-
 ### Building from source
 
 Building Kryo from source requires JDK11+ and Maven. To build all artifacts, run:
@@ -627,12 +617,11 @@ Kryo `isFinal` is used to determine if a class is final. This method can be over
 
 Kryo can serialize Java 8+ closures that implement java.io.Serializable, with some caveats. Closures serialized on one JVM may fail to be deserialized on a different JVM.
 
-Kryo `isClosure` is used to determine if a class is a closure. If so, then ClosureSerializer.Closure is used to find the class registration instead of the closure's class. To serialize closures, the following classes must be registered: ClosureSerializer.Closure, SerializedLambda, Object[], and Class. Additionally, the closure's capturing class must be registered.
+Kryo `isClosure` is used to determine if a class is a closure. If so, then ClosureSerializer.Closure is used to find the class registration instead of the closure's class. To serialize closures, the following classes must be registered: ClosureSerializer.Closure, Object[], and Class. Additionally, the closure's capturing class must be registered.
 
 ```java
 kryo.register(Object[].class);
 kryo.register(Class.class);
-kryo.register(SerializedLambda.class);
 kryo.register(ClosureSerializer.Closure.class, new ClosureSerializer());
 kryo.register(CapturingClass.class);
 
@@ -1247,7 +1236,7 @@ outputPool.free(output);
 ```java
 Pool<Input> inputPool = new Pool<Input>(true, false, 16) {
    protected Input create () {
-      return new Input(1024, -1);
+      return new Input(1024);
    }
 };
 
@@ -1306,6 +1295,8 @@ There are a number of projects using Kryo. A few are listed below. Please submit
 - [DestroyAllHumans](https://code.google.com/p/destroyallhumans/) (controls a [robot](http://www.youtube.com/watch?v=ZeZ3R38d3Cg)!)
 - [Mybatis Redis-Cache](https://github.com/mybatis/redis-cache) (MyBatis Redis Cache adapter)
 - [Apache Dubbo](https://github.com/apache/incubator-dubbo) (high performance, open source RPC framework)
+- [Spring Statemachine](https://spring.io/projects/spring-statemachine) (State machine concepts with Spring)
+- [session-compatible-fast-serializer](https://github.com/alibaba/session-compatible-fast-serializer) (A compatible field serializer with better performance)
 
 ### Scala
 

benchmarks/pom.xml

@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>com.esotericsoftware</groupId>
 		<artifactId>kryo-parent</artifactId>
-		<version>5.2.1-SNAPSHOT</version>
+		<version>5.3.1-SNAPSHOT</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
@@ -16,7 +16,8 @@
 
 	<properties>
 		<kryo.root>${basedir}/..</kryo.root>
-		<jmh.version>1.20</jmh.version>
+		<jmh.version>1.36</jmh.version>
+		<byte-buddy.version>1.12.18</byte-buddy.version>
 		<uberjar.name>benchmarks</uberjar.name>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 	</properties>
@@ -38,13 +39,19 @@
 			<version>${jmh.version}</version>
 			<scope>provided</scope>
 		</dependency>
+		<dependency>
+			<groupId>net.bytebuddy</groupId>
+			<artifactId>byte-buddy</artifactId>
+			<version>${byte-buddy.version}</version>
+		</dependency>
 	</dependencies>
 
 	<build>
 		<sourceDirectory>src/main/java</sourceDirectory>
 		<plugins>
 			<plugin>
 				<artifactId>maven-dependency-plugin</artifactId>
+				<version>3.2.0</version>
 				<executions>
 					<execution>
 						<id>build-classpath</id>
@@ -62,7 +69,7 @@
 			<plugin>
 				<groupId>org.codehaus.mojo</groupId>
 				<artifactId>exec-maven-plugin</artifactId>
-				<version>1.4.0</version>
+				<version>3.0.0</version>
 				<executions>
 					<execution>
 						<id>run-tests</id>