Node not taking latest changes

Hi Gurus,

I am making changes to my node dialog and node model classes and creating jar with new changes in eclipse and then copying the new jar file to dropins folder under KNIME installation folder.

Strange thing is KNIME analytics is not picking the new changes as still referring to the code and new code seems to be not being picked up by KNIME because i have added new string dialog component to existing tab and i don't see new string dialog even after restarting my KNIME analytics.

Restarted twice but still no luck.

Any help would be great..