Fluss support jdk 11

Author: loserwang1024

.github/workflows/ci.yaml

@@ -31,7 +31,7 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  build:
+  compile-on-jdk8:
     runs-on: self-hosted
     strategy:
       fail-fast: false
@@ -40,9 +40,32 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
+      - name: Set up JDK 8
+        uses: actions/setup-java@v4
+        with:
+          java-version: '8'
+          distribution: 'temurin'
       - name: Build
         run: |
           mvn -T 1C -B clean install -DskipTests
+
+  build-on-jdk11:
+    runs-on: self-hosted
+    strategy:
+      fail-fast: false
+      matrix:
+        module: [ core, flink ]
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Set up JDK 11
+        uses: actions/setup-java@v4
+        with:
+          java-version: '11'
+          distribution: 'temurin'
+      - name: Build
+        run: |
+          mvn -T 1C -B clean install -DskipTests -Pjava11-target
       - name: Test
         timeout-minutes: 60
         run: |

pom.xml

@@ -423,6 +423,29 @@
     </dependencyManagement>
 
     <profiles>
+        <profile>
+            <id>java11-target</id>
+            <build>
+                <plugins>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-compiler-plugin</artifactId>
+                        <configuration>
+                            <source>11</source>
+                            <target>11</target>
+                            <compilerArgs combine.children="append">
+                                <arg>--add-exports=java.base/sun.net.util=ALL-UNNAMED</arg>
+                                <arg>--add-exports=java.management/sun.management=ALL-UNNAMED</arg>
+                                <arg>--add-exports=java.rmi/sun.rmi.registry=ALL-UNNAMED</arg>
+                                <arg>--add-exports=java.security.jgss/sun.security.krb5=ALL-UNNAMED</arg>
+                                <arg>--add-exports=java.base/sun.nio.ch=ALL-UNNAMED</arg>
+                            </compilerArgs>
+                        </configuration>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
+
         <profile>
             <id>test-coverage</id>
             <properties>
@@ -885,6 +908,7 @@
                     <artifactId>maven-compiler-plugin</artifactId>
                     <version>3.8.0</version>
                     <configuration>
+                        <!-- Make sure that we only use Java 8 compatible APIs -->
                         <source>${target.java.version}</source>
                         <target>${target.java.version}</target>
                         <!-- The semantics of this option are reversed, see MCOMPILER-209. -->