[MJAR-323] add Java-Version to MANIFEST.MF

cherry-picked from 3.x branch #465
requires apache/maven-archiver#299

Author: hboutemy

pom.xml

@@ -78,7 +78,7 @@
 
     <guiceVersion>6.0.0</guiceVersion>
     <junitVersion>5.13.4</junitVersion>
-    <mavenArchiverVersion>4.0.0-beta-4</mavenArchiverVersion>
+    <mavenArchiverVersion>4.0.0-beta-5-SNAPSHOT</mavenArchiverVersion>
     <mavenFileManagementVersion>3.2.0</mavenFileManagementVersion>
     <mavenPluginPluginVersion>4.0.0-beta-1</mavenPluginPluginVersion>
     <mavenPluginTestingVersion>4.0.0-beta-3</mavenPluginTestingVersion>

src/it/manifest-content/pom.xml

@@ -27,6 +27,9 @@
   <organization>
     <name>jar plugin it</name>
   </organization>
+  <properties>
+    <maven.compiler.release>11</maven.compiler.release>
+  </properties>
   <build>
     <plugins>
       <plugin>

src/it/manifest-content/verify.grovy renamed to src/it/manifest-content/verify.groovy

@@ -25,7 +25,6 @@ import java.util.zip.*;
 
 boolean result = true;
 
-
 try
 {
     File target = new File( basedir, "target" );
@@ -104,6 +103,11 @@ try
         return false;
     }
 
+    if ( !"11".equals( manifest.getValue( "Java-Version" ) ) )
+    {
+        System.err.println( "Java-Version not equals 11" );
+        return false;
+    }
 }
 catch( Throwable e )
 {