11-13:31:56.116 | Time-limited test                        | ERROR |  TEST FAILED                                                                      - (LogTestMethodsRule.java:37)
java.lang.IllegalThreadStateException: null
	at java.lang.ThreadGroup.addUnstarted(ThreadGroup.java:865) ~[?:?]
	at java.lang.Thread.<init>(Thread.java:435) ~[?:?]
	at java.lang.Thread.<init>(Thread.java:709) ~[?:?]
	at java.lang.Thread.<init>(Thread.java:630) ~[?:?]
	at org.eclipse.nebula.widgets.nattable.util.Scheduler.newThread(Scheduler.java:85) ~[org.eclipse.nebula.widgets.nattable.core_1.6.0.201909181823.jar:?]
	at java.util.concurrent.ThreadPoolExecutor$Worker.<init>(ThreadPoolExecutor.java:623) ~[?:?]
	at java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:912) ~[?:?]
	at java.util.concurrent.ThreadPoolExecutor.ensurePrestart(ThreadPoolExecutor.java:1583) ~[?:?]
	at java.util.concurrent.ScheduledThreadPoolExecutor.delayedExecute(ScheduledThreadPoolExecutor.java:346) ~[?:?]
	at java.util.concurrent.ScheduledThreadPoolExecutor.scheduleWithFixedDelay(ScheduledThreadPoolExecutor.java:680) ~[?:?]
	at org.eclipse.nebula.widgets.nattable.util.Scheduler.scheduleWithFixedDelay(Scheduler.java:49) ~[org.eclipse.nebula.widgets.nattable.core_1.6.0.201909181823.jar:?]
	at org.eclipse.nebula.widgets.nattable.conflation.EventConflaterChain.start(EventConflaterChain.java:52) ~[org.eclipse.nebula.widgets.nattable.core_1.6.0.201909181823.jar:?]
	at org.eclipse.nebula.widgets.nattable.NatTable.<init>(NatTable.java:283) ~[org.eclipse.nebula.widgets.nattable.core_1.6.0.201909181823.jar:?]
	at org.eclipse.nebula.widgets.nattable.NatTable.<init>(NatTable.java:228) ~[org.eclipse.nebula.widgets.nattable.core_1.6.0.201909181823.jar:?]
	at org.eclipse.nebula.widgets.nattable.NatTable.<init>(NatTable.java:218) ~[org.eclipse.nebula.widgets.nattable.core_1.6.0.201909181823.jar:?]