target Java 11, buried Java 8 with the rest of the Roman Empire.

Java version numbers are like hieroglyphics, symbolic, nonlinear, and occasionally cursed.

Author: seuros

Rakefile

@@ -185,7 +185,7 @@ if defined? JRUBY_VERSION
   #directory classes = 'pkg/classes'; CLEAN << classes
 
   file jar_file => FileList[ 'src/java/**/*.java' ] do
-    source = target = '1.8'; debug = true
+    source = target = '11'; debug = true
 
     get_driver_jars_local = lambda do |*args|
       driver_deps = args.empty? ? [ :Postgres, :MySQL ] : args

pom.xml

@@ -103,8 +103,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>2.5.1</version>
         <configuration>
-          <source>1.8</source>
-          <target>1.8</target>
+          <source>11</source>
+          <target>11</target>
         </configuration>
       </plugin>
     </plugins>