Tiny updates

- several comments
- link to JDK11 javadoc instead of 8

# Conflicts:
#	nucleus/parent/pom.xml
diff --git a/docs/pom.xml b/docs/pom.xml
index 92ec0a6..7a8cebf 100644
--- a/docs/pom.xml
+++ b/docs/pom.xml
@@ -82,7 +82,7 @@
                             <rules>
                                 <requireJavaVersion>
                                     <version>[1.8.0,1.9.0)</version>
-                                    <message>You need JDK8 or lower</message>
+                                    <message>You need JDK8</message>
                                 </requireJavaVersion>
                             </rules>
                         </configuration>
diff --git a/nucleus/admin/cli/pom.xml b/nucleus/admin/cli/pom.xml
index 2f4b21f..db844c8 100755
--- a/nucleus/admin/cli/pom.xml
+++ b/nucleus/admin/cli/pom.xml
@@ -192,7 +192,7 @@
                     <verbose>false</verbose>
                     <linksource>true</linksource>
                     <links>
-                        <link>https://docs.oracle.com/javase/8/docs/api/</link>
+                        <link>https://docs.oracle.com/en/java/javase/11/docs/api/</link>
                     </links>
                     <show>private</show>
                 </configuration>
diff --git a/nucleus/parent/pom.xml b/nucleus/parent/pom.xml
index 88f6de5..a8c5315 100644
--- a/nucleus/parent/pom.xml
+++ b/nucleus/parent/pom.xml
@@ -530,8 +530,7 @@
                 <version>7.0.3</version>
                 <scope>provided</scope>
             </dependency>
-
-            <!-- This is currently used by osgi-shell cmd, but can be used for others as well -->
+            <!-- This is currently used by osgi-shell cmd -->
             <dependency>
                 <groupId>org.jline</groupId>
                 <artifactId>jline</artifactId>