feat(java): remove sun.misc.Unsafe for jdk25

.agents/languages/kotlin.md

@@ -6,6 +6,14 @@ Load this file when changing `kotlin/`.
 
 - Run Kotlin Maven commands from within `kotlin/`.
 - Kotlin serializers build on the Java implementation. If Java changed and the updated Java artifacts are not installed yet, run `cd ../java && mvn -T16 install -DskipTests` first.
+- KSP `@ForyStruct` serializers that use a primary constructor map constructor parameters to
+  same-named source properties at generation time and call the constructor directly. Do not restore
+  `@ForyConstructor`, runtime constructor registration, or Kotlin `javaParameters` dependencies;
+  mutable no-argument structs should use `var` properties with `@ForyField`.
+- Preserve serializer-family selection for Kotlin standard-library types already registered by
+  Fory. Do not auto-install a new serializer for an existing type-registered Kotlin class unless the
+  wire format matches the previous serializer family and old-payload/new-runtime compatibility is
+  tested.
 
 ## Commands
 

.github/workflows/ci.yml

@@ -169,7 +169,7 @@ jobs:
       MY_VAR: "PATH"
     strategy:
       matrix:
-        java-version: ${{ fromJSON(needs.changes.outputs.java_code == 'true' && '["8","11","17","21","25"]' || '["8"]') }}
+        java-version: ${{ fromJSON(needs.changes.outputs.java_code == 'true' && '["8","11","17","21","25","26"]' || '["8"]') }}
     steps:
       - uses: actions/checkout@v5
       - name: Set up JDK ${{ matrix.java-version }}

.github/workflows/release-java-snapshot.yaml

@@ -32,15 +32,15 @@ jobs:
       - name: Set up Maven Central Repository
         uses: actions/setup-java@v4
         with:
-          java-version: "11"
-          distribution: "adopt"
+          java-version: "25"
+          distribution: "temurin"
           architecture: x64
           cache: maven
           server-id: apache.snapshots.https
           server-username: NEXUS_USERNAME
           server-password: NEXUS_PASSWORD
       - name: Publish Fory Java Snapshot
-        run: python ./ci/run_ci.py java --version 11 --release
+        run: python ./ci/run_ci.py java --version 25 --release
         env:
           NEXUS_USERNAME: ${{ secrets.NEXUS_USER }}
           NEXUS_PASSWORD: ${{ secrets.NEXUS_PW }}

README.md

@@ -142,6 +142,19 @@ Gradle:
 implementation "org.apache.fory:fory-core:1.1.0"
 ```
 
+On JDK25+, open `java.lang.invoke` to Fory. Use `ALL-UNNAMED` when Fory is on
+the classpath:
+
+```bash
+--add-opens=java.base/java.lang.invoke=ALL-UNNAMED
+```
+
+Use the Fory core module name when Fory is on the module path:
+
+```bash
+--add-opens=java.base/java.lang.invoke=org.apache.fory.core
+```
+
 **Scala**
 
 sbt:

benchmarks/java/pom.xml

@@ -212,13 +212,6 @@
           </plugin>
         </plugins>
       </build>
-      <dependencies>
-        <dependency>
-          <groupId>org.apache.fory</groupId>
-          <artifactId>fory-simd</artifactId>
-          <version>${project.version}</version>
-        </dependency>
-      </dependencies>
     </profile>
     <profile>
       <id>jmh</id>
@@ -236,6 +229,136 @@
         </dependency>
       </dependencies>
     </profile>
+    <profile>
+      <id>jdk25-benchmark-mrjar-check</id>
+      <activation>
+        <jdk>[25,)</jdk>
+      </activation>
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-antrun-plugin</artifactId>
+            <executions>
+              <execution>
+                <id>verify-benchmark-mrjar</id>
+                <phase>package</phase>
+                <goals>
+                  <goal>run</goal>
+                </goals>
+                <configuration>
+                  <target>
+                    <property
+                      name="jdk25.benchmark.check.dir"
+                      value="${project.build.directory}/jdk25-benchmark-check"/>
+                    <delete dir="${jdk25.benchmark.check.dir}"/>
+                    <mkdir dir="${jdk25.benchmark.check.dir}"/>
+                    <unzip
+                      src="${project.build.directory}/${uberjar.name}.jar"
+                      dest="${jdk25.benchmark.check.dir}">
+                      <patternset>
+                        <include
+                          name="org/apache/fory/platform/UnsafeOps.class"/>
+                        <include
+                          name="META-INF/versions/25/org/apache/fory/platform/UnsafeOps.class"/>
+                        <include
+                          name="META-INF/versions/25/org/apache/fory/memory/LittleEndian.class"/>
+                        <include
+                          name="META-INF/versions/25/org/apache/fory/memory/MemoryBuffer.class"/>
+                        <include
+                          name="META-INF/versions/25/org/apache/fory/platform/internal/_UnsafeUtils.class"/>
+                        <include
+                          name="META-INF/versions/25/org/apache/fory/reflect/InstanceFieldAccessors.class"/>
+                        <include
+                          name="META-INF/versions/25/org/apache/fory/serializer/PlatformStringUtils.class"/>
+                      </patternset>
+                    </unzip>
+                    <available
+                      file="${jdk25.benchmark.check.dir}/org/apache/fory/platform/UnsafeOps.class"
+                      property="jdk25.benchmark.rootunsafeops.present"/>
+                    <available
+                      file="${jdk25.benchmark.check.dir}/META-INF/versions/25/org/apache/fory/platform/UnsafeOps.class"
+                      property="jdk25.benchmark.unsafeops.present"/>
+                    <available
+                      file="${jdk25.benchmark.check.dir}/META-INF/versions/25/org/apache/fory/memory/LittleEndian.class"
+                      property="jdk25.benchmark.littleendian.present"/>
+                    <available
+                      file="${jdk25.benchmark.check.dir}/META-INF/versions/25/org/apache/fory/memory/MemoryBuffer.class"
+                      property="jdk25.benchmark.memorybuffer.present"/>
+                    <available
+                      file="${jdk25.benchmark.check.dir}/META-INF/versions/25/org/apache/fory/platform/internal/_UnsafeUtils.class"
+                      property="jdk25.benchmark.unsafeutils.present"/>
+                    <available
+                      file="${jdk25.benchmark.check.dir}/META-INF/versions/25/org/apache/fory/reflect/InstanceFieldAccessors.class"
+                      property="jdk25.benchmark.instancefieldaccessors.present"/>
+                    <available
+                      file="${jdk25.benchmark.check.dir}/META-INF/versions/25/org/apache/fory/serializer/PlatformStringUtils.class"
+                      property="jdk25.benchmark.platformstring.present"/>
+                    <fail
+                      if="jdk25.benchmark.rootunsafeops.present"
+                      message="JDK25 benchmark jar must not contain root UnsafeOps class."/>
+                    <fail
+                      if="jdk25.benchmark.unsafeops.present"
+                      message="JDK25 benchmark jar must not contain versioned UnsafeOps class."/>
+                    <fail
+                      unless="jdk25.benchmark.littleendian.present"
+                      message="JDK25 benchmark jar is missing the versioned LittleEndian class."/>
+                    <fail
+                      unless="jdk25.benchmark.memorybuffer.present"
+                      message="JDK25 benchmark jar is missing the versioned MemoryBuffer class."/>
+                    <fail
+                      unless="jdk25.benchmark.unsafeutils.present"
+                      message="JDK25 benchmark jar is missing the versioned _UnsafeUtils class."/>
+                    <fail
+                      unless="jdk25.benchmark.instancefieldaccessors.present"
+                      message="JDK25 benchmark jar is missing the versioned InstanceFieldAccessors class."/>
+                    <fail
+                      unless="jdk25.benchmark.platformstring.present"
+                      message="JDK25 benchmark jar is missing the versioned PlatformStringUtils class."/>
+                    <exec
+                      executable="${java.home}/bin/jdeps"
+                      failonerror="true"
+                      outputproperty="jdk25.benchmark.jdeps.output">
+                      <arg value="--multi-release"/>
+                      <arg value="25"/>
+                      <arg value="--ignore-missing-deps"/>
+                      <arg value="-include"/>
+                      <arg value="org\.apache\.fory\..*"/>
+                      <arg value="-verbose:class"/>
+                      <arg value="${project.build.directory}/${uberjar.name}.jar"/>
+                    </exec>
+                    <condition property="jdk25.benchmark.jdeps.sunmisc.present">
+                      <contains string="${jdk25.benchmark.jdeps.output}" substring="-&gt; sun.misc"/>
+                    </condition>
+                    <condition property="jdk25.benchmark.jdeps.jdkinternalreflect.present">
+                      <contains
+                        string="${jdk25.benchmark.jdeps.output}"
+                        substring="-&gt; jdk.internal.reflect"/>
+                    </condition>
+                    <fail
+                      if="jdk25.benchmark.jdeps.sunmisc.present"
+                      message="JDK25 benchmark jar must not expose sun.misc dependencies in the resolved class graph."/>
+                    <fail
+                      if="jdk25.benchmark.jdeps.jdkinternalreflect.present"
+                      message="JDK25 benchmark jar must not expose jdk.internal.reflect dependencies in the resolved class graph."/>
+                    <java
+                      classname="org.apache.fory.benchmark.Jdk25MrJarCheck"
+                      fork="true"
+                      failonerror="true">
+                      <classpath>
+                        <pathelement location="${project.build.directory}/${uberjar.name}.jar"/>
+                      </classpath>
+                      <jvmarg value="--add-opens=java.base/java.lang.invoke=ALL-UNNAMED"/>
+                      <jvmarg value="--sun-misc-unsafe-memory-access=deny"/>
+                    </java>
+                  </target>
+                </configuration>
+              </execution>
+            </executions>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
   </profiles>
 
   <build>
@@ -266,6 +389,7 @@
         <configuration>
           <archive>
             <manifestEntries>
+              <Multi-Release>true</Multi-Release>
               <Automatic-Module-Name>org.apache.fory.benchmark</Automatic-Module-Name>
             </manifestEntries>
           </archive>
@@ -287,6 +411,10 @@
                 <transformer
                   implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                   <mainClass>org.openjdk.jmh.Main</mainClass>
+                  <manifestEntries>
+                    <Multi-Release>true</Multi-Release>
+                    <Automatic-Module-Name>org.apache.fory.benchmark</Automatic-Module-Name>
+                  </manifestEntries>
                 </transformer>
               </transformers>
               <filters>
@@ -298,6 +426,18 @@
                     <exclude>META-INF/*.RSA</exclude>
                   </excludes>
                 </filter>
+                <filter>
+                  <artifact>org.apache.logging.log4j:*</artifact>
+                  <excludes>
+                    <exclude>META-INF/versions/**</exclude>
+                  </excludes>
+                </filter>
+                <filter>
+                  <artifact>com.fasterxml.jackson.core:jackson-core</artifact>
+                  <excludes>
+                    <exclude>META-INF/versions/**</exclude>
+                  </excludes>
+                </filter>
               </filters>
             </configuration>
           </execution>

benchmarks/java/src/main/java/org/apache/fory/benchmark/CompressStringSuite.java

@@ -21,6 +21,7 @@
 
 import java.nio.ByteBuffer;
 import org.apache.fory.memory.MemoryBuffer;
+import org.apache.fory.serializer.StringEncodingUtils;
 import org.apache.fory.util.StringUtils;
 import org.openjdk.jmh.Main;
 import org.openjdk.jmh.annotations.Benchmark;
@@ -99,7 +100,7 @@ public Object latinScalarCheck() {
 
   @Benchmark
   public Object latinSuperWordCheck() {
-    return StringUtils.isLatin(latinStrChars);
+    return StringEncodingUtils.isLatin(latinStrChars);
   }
 
   public static void main(String[] args) throws Exception {

benchmarks/java/src/main/java/org/apache/fory/benchmark/Identity2IdMap.java

@@ -18,7 +18,6 @@
 
 import java.util.ArrayList;
 import java.util.List;
-import org.apache.fory.platform.UnsafeOps;
 
 // Derived from
 // https://github.com/RuedigerMoeller/fast-serialization/blob/e8da5591daa09452791dcd992ea4f83b20937be7/src/main/java/org/nustaq/serialization/util/FSTIdentity2IdMap.java.
@@ -405,20 +404,10 @@ public static void clear(int[] arr, int len) {
     int count = 0;
     final int emptyArrayLength = EMPTY_INT_ARRAY.length;
     while (len - count > emptyArrayLength) {
-      UnsafeOps.copyMemory(
-          EMPTY_INT_ARRAY,
-          UnsafeOps.INT_ARRAY_OFFSET,
-          arr,
-          UnsafeOps.INT_ARRAY_OFFSET + count,
-          emptyArrayLength);
+      System.arraycopy(EMPTY_INT_ARRAY, 0, arr, count, emptyArrayLength);
       count += emptyArrayLength;
     }
-    UnsafeOps.copyMemory(
-        EMPTY_INT_ARRAY,
-        UnsafeOps.INT_ARRAY_OFFSET,
-        arr,
-        UnsafeOps.INT_ARRAY_OFFSET + count,
-        len - count);
+    System.arraycopy(EMPTY_INT_ARRAY, 0, arr, count, len - count);
   }
 
   public static void clear(Object[] arr, int len) {