Date thread not dying when tab is deactivated

gistfile1.txt

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
	at com.barchart.plugin.trader.core.impl.TradingServiceControllerProvider.getAllAccounts(TradingServiceControllerProvider.java:97)
	at com.barchart.plugin.trader.tab.ui.TradingTabView$TradingServiceControllerWrapper.generate(TradingTabView.java:1298)
	at com.barchart.plugin.trader.tab.ui.TradingTabView.resetOrderDetails(TradingTabView.java:2373)
	at com.barchart.plugin.trader.tab.ui.TradingTabView.setDateShowing(TradingTabView.java:2326)
	at com.barchart.plugin.trader.tab.ui.TradingTabView.access$26(TradingTabView.java:2324)
	at com.barchart.plugin.trader.tab.ui.TradingTabView$ButtonDateHandler.today(TradingTabView.java:3651)
	at com.barchart.plugin.trader.tab.ui.TradingTabView$4$1.run(TradingTabView.java:577)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:733)
	at java.awt.EventQueue.access$200(EventQueue.java:103)
	at java.awt.EventQueue$3.run(EventQueue.java:694)
	at java.awt.EventQueue$3.run(EventQueue.java:692)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:703)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)