jconsole AboutDialog should use the JDK specific Version API

With the introduction of a JDK specific Version API, the jconsole AboutDialog should no longer
use sun.misc.Version. It should be be updated to use the new JDK specific API

diff --git a/src/jdk.jconsole/share/classes/sun/tools/jconsole/AboutDialog.java b/src/jdk.jconsole/share/classes/sun/tools/jconsole/AboutDialog.java
--- a/src/jdk.jconsole/share/classes/sun/tools/jconsole/AboutDialog.java
+++ b/src/jdk.jconsole/share/classes/sun/tools/jconsole/AboutDialog.java
@@ -34,8 +34,6 @@
 import javax.swing.border.*;
 import javax.swing.event.*;
 
-import static sun.misc.Version.jdkMinorVersion;
-
 import static java.awt.BorderLayout.*;
 import static sun.tools.jconsole.Utilities.*;
 
@@ -183,7 +181,7 @@
     }
 
     private static String getOnlineDocUrl() {
- String version = Integer.toString(jdkMinorVersion());
+ String version = Integer.toString(jdk.Version.current().major());
         return Resources.format(Messages.HELP_ABOUT_DIALOG_USER_GUIDE_LINK_URL,
                                 version);
     }