Change default value of compile.version from 1.8 to 11 (#920)

.github/workflows/ci.yml

@@ -60,7 +60,7 @@ jobs:
       - name: Create coverage
         id: create-coverage
         if: contains(matrix.os, 'ubuntu-latest')
-        run: mvn -Prelease11 -Punit-test -Psend-coverage -DfailIfNoTests=false clean test jacoco:report
+        run: mvn -Punit-test -Psend-coverage -DfailIfNoTests=false clean test jacoco:report
       - name: Archive code coverage
         if: "(steps.create-coverage.conclusion == 'success' && contains(matrix.os, 'ubuntu-latest')) && (github.ref == 'refs/heads/master' || contains(github.ref, 'snapshot'))"
         uses: actions/upload-artifact@v2
@@ -70,7 +70,7 @@ jobs:
           retention-days: 7
       - name: Verify with Maven on Win
         if: contains(matrix.os, 'windows-latest')
-        run: mvn clean verify -B -Prelease11 -Punit-test
+        run: mvn clean verify -B -Punit-test
   ##########################################################################
   send-coverage:
     name: Send coverage to Codacy

pom.xml

@@ -25,7 +25,7 @@
         <pmd.version>6.32.0</pmd.version>
         <log4j.version>2.14.1</log4j.version>
         <docker.container.repo>airsonic/airsonic</docker.container.repo>
-        <compile.version>1.8</compile.version>
+        <maven.compiler.release>11</maven.compiler.release>
     </properties>
 
     <repositories>
@@ -783,13 +783,6 @@
         </plugins>
     </reporting>
     <profiles>
-        <profile>
-            <id>release11</id>
-            <properties>
-                <maven.compiler.release>11</maven.compiler.release>
-                <compile.version>11</compile.version>
-            </properties>
-        </profile>
         <profile>
             <id>release12</id>
             <properties>