Drop Java 8
diff --git a/platforms/karaf/features/pom.xml b/platforms/karaf/features/pom.xml
index df7a4ca..9db6d14 100644
--- a/platforms/karaf/features/pom.xml
+++ b/platforms/karaf/features/pom.xml
@@ -126,7 +126,7 @@
                         <descriptor>mvn:org.apache.karaf.features/spring/${karaf4-version}/xml/features</descriptor>
                     </descriptors>
                     <distribution>org.apache.karaf.features:framework</distribution>
-                    <javase>9</javase>
+                    <javase>11</javase>
                     <framework>
                         <feature>framework</feature>
                     </framework>