If you recently upgraded to mdk 9.X and are experiencing the "Ignoring -jar" error...try the following.

-Check your java -version. If it changed or is different then what it was (assuming you have it working) then you will need to evert back to your older version of JRE.

-Try uninstalling LimeWire and Java. Reinstall java and Lime in that order.

I found that when you upgrade to 9.x you may have overwritten your current version with glib, which is worse off then sun.

Hope this helps.