Drop Java 8 support, require Java 11+

Author: Aleksandar Damjanovic

.github/workflows/maven.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [ 8, 11, 17, 21 ]
+        java: [ 11, 17, 21 ]
     steps:
       - uses: actions/checkout@v4
       - name: Set up JDK ${{ matrix.java }}

pom.xml

@@ -40,8 +40,8 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
     </properties>
 
     <dependencies>