Fixes issue 3419: Unable to execute thread. — addons.ui_swing.framemanager.windowmenu.WindowMenuScroller.<init>(WindowMenuScroller.java:59) Change-Id: I93190266e54bcc4770554a73bb42ab8b71c5fbf1 Reviewed-on: http://gerrit.dmdirc.com/296 Tested-by: Gregory Holmes <greboid@dmdirc.com> Reviewed-by: Shane Mc Cormack <shane@dmdirc.com>