fix:JDK 25 Netty EventLoopGroup creation and ignore unsafe warning (#15764)

Author: redoom

.github/workflows/build-and-test-pr.yml

@@ -218,6 +218,9 @@ jobs:
       CURRENT_ROLE: ${{ matrix.case-role }}
       ZOOKEEPER_VERSION: 3.7.2
     steps:
+      - name: "Set MAVEN_OPTS for JDK 24+"
+        if: ${{ matrix.java >= 24 }}
+        run: echo "MAVEN_OPTS=--sun-misc-unsafe-memory-access=allow" >> $GITHUB_ENV
       - name: "Checkout code"
         uses: actions/checkout@v4
         with:

.github/workflows/build-and-test-scheduled-3.3.yml

@@ -136,6 +136,12 @@ jobs:
     env:
       DISABLE_FILE_SYSTEM_TEST: true
     steps:
+      - name: "Set MAVEN_OPTS for JDK 24+ on Linux"
+        if: ${{ matrix.jdk >= 24 && startsWith(matrix.os, 'ubuntu') }}
+        run: echo "MAVEN_OPTS=--sun-misc-unsafe-memory-access=allow" >> $GITHUB_ENV
+      - name: "Set MAVEN_OPTS for JDK 24+ on Windows"
+        if: ${{ matrix.jdk >= 24 && startsWith(matrix.os, 'windows') }}
+        run: echo "MAVEN_OPTS=--sun-misc-unsafe-memory-access=allow" >> $env:GITHUB_ENV
       - uses: actions/checkout@v4
         with:
           ref: "3.3"
@@ -182,6 +188,12 @@ jobs:
       DUBBO_DEFAULT_SERIALIZATION: fastjson2
       MAVEN_SUREFIRE_ADD_OPENS: true
     steps:
+      - name: "Set MAVEN_OPTS for JDK 24+ on Linux"
+        if: ${{ matrix.jdk >= 24 && startsWith(matrix.os, 'ubuntu') }}
+        run: echo "MAVEN_OPTS=--sun-misc-unsafe-memory-access=allow" >> $GITHUB_ENV
+      - name: "Set MAVEN_OPTS for JDK 24+ on Windows"
+        if: ${{ matrix.jdk >= 24 && startsWith(matrix.os, 'windows') }}
+        run: echo "MAVEN_OPTS=--sun-misc-unsafe-memory-access=allow" >> $env:GITHUB_ENV
       - uses: actions/checkout@v4
       - name: "Set up JDK ${{ matrix.jdk }}"
         uses: actions/setup-java@v4
@@ -252,6 +264,9 @@ jobs:
         jdk: [ 8, 11, 17, 21, 25 ]
         job_id: [1, 2, 3, 4, 5]
     steps:
+      - name: "Set MAVEN_OPTS for JDK 24+"
+        if: ${{ matrix.jdk >= 24 }}
+        run: echo "MAVEN_OPTS=--sun-misc-unsafe-memory-access=allow" >> $GITHUB_ENV
       - uses: actions/checkout@v4
         with:
           repository: 'apache/dubbo-samples'
@@ -358,6 +373,9 @@ jobs:
         jdk: [ 8, 11, 17, 21, 25 ]
         job_id: [1, 2, 3, 4, 5]
     steps:
+      - name: "Set MAVEN_OPTS for JDK 24+"
+        if: ${{ matrix.jdk >= 24 }}
+        run: echo "MAVEN_OPTS=--sun-misc-unsafe-memory-access=allow" >> $GITHUB_ENV
       - uses: actions/checkout@v4
         with:
           repository: 'apache/dubbo-integration-cases'

.github/workflows/release-test.yml

@@ -133,6 +133,12 @@ jobs:
       DISABLE_FILE_SYSTEM_TEST: true
     steps:
       - uses: actions/checkout@v4
+      - name: "Set MAVEN_OPTS for JDK 24+ on Linux"
+        if: ${{ matrix.jdk >= 24 && startsWith(matrix.os, 'ubuntu') }}
+        run: echo "MAVEN_OPTS=--sun-misc-unsafe-memory-access=allow" >> $GITHUB_ENV
+      - name: "Set MAVEN_OPTS for JDK 24+ on Windows"
+        if: ${{ matrix.jdk >= 24 && startsWith(matrix.os, 'windows') }}
+        run: echo "MAVEN_OPTS=--sun-misc-unsafe-memory-access=allow" >> $env:GITHUB_ENV
       - name: "Set up JDK ${{ matrix.jdk }}"
         uses: actions/setup-java@v4
         with:
@@ -178,6 +184,12 @@ jobs:
       MAVEN_SUREFIRE_ADD_OPENS: true
     steps:
       - uses: actions/checkout@v4
+      - name: "Set MAVEN_OPTS for JDK 24+ on Linux"
+        if: ${{ matrix.jdk >= 24 && startsWith(matrix.os, 'ubuntu') }}
+        run: echo "MAVEN_OPTS=--sun-misc-unsafe-memory-access=allow" >> $GITHUB_ENV
+      - name: "Set MAVEN_OPTS for JDK 24+ on Windows"
+        if: ${{ matrix.jdk >= 24 && startsWith(matrix.os, 'windows') }}
+        run: echo "MAVEN_OPTS=--sun-misc-unsafe-memory-access=allow" >> $env:GITHUB_ENV
       - name: "Set up JDK ${{ matrix.jdk }}"
         uses: actions/setup-java@v4
         with:
@@ -251,6 +263,9 @@ jobs:
         with:
           repository: 'apache/dubbo-samples'
           ref: master
+      - name: "Set MAVEN_OPTS for JDK 24+"
+        if: ${{ matrix.jdk >= 24 }}
+        run: echo "MAVEN_OPTS=--sun-misc-unsafe-memory-access=allow" >> $GITHUB_ENV
       - name: "Cache local Maven repository"
         uses: actions/cache@v3
         with:
@@ -351,6 +366,9 @@ jobs:
         with:
           repository: 'apache/dubbo-integration-cases'
           ref: main
+      - name: "Set MAVEN_OPTS for JDK 24+"
+        if: ${{ matrix.jdk >= 24 }}
+        run: echo "MAVEN_OPTS=--sun-misc-unsafe-memory-access=allow" >> $GITHUB_ENV
       - name: "Cache local Maven repository"
         uses: actions/cache@v3
         with:

dubbo-remoting/dubbo-remoting-netty4/src/main/java/org/apache/dubbo/remoting/transport/netty4/NettyEventLoopFactory.java

@@ -49,9 +49,11 @@ public class NettyEventLoopFactory {
 
     public static EventLoopGroup eventLoopGroup(int threads, String threadFactoryName) {
         ThreadFactory threadFactory = new DefaultThreadFactory(threadFactoryName, true);
-        return shouldEpoll()
-                ? new EpollEventLoopGroup(threads, threadFactory)
-                : new NioEventLoopGroup(threads, threadFactory);
+        if (shouldEpoll()) {
+            return new EpollEventLoopGroup(threads, threadFactory);
+        } else {
+            return new NioEventLoopGroup(threads, threadFactory);
+        }
     }
 
     public static Class<? extends SocketChannel> socketChannelClass() {