ExperimentExample is throwing an Exception

[renan-eccel]

I am running com.github.rinde.rinsim.example.experiment in Eclipse Oxygen in a Ubuntu 18
RimSim 4.4.6

SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Exception in thread "main" com.github.rinde.rinsim.experiment.AbortExperimentException: Failed: SimArgs{problemClass=SimpleProblemClass(DEFAULT),instancedId=,masConfig=MASConfiguration,randomSeed=2780242596957121269,repetition=0,postProcessor=com.github.rinde.rinsim.examples.experiment.ExamplePostProcessor@1e9e725a}
	at com.github.rinde.rinsim.experiment.Experiment.perform(Experiment.java:217)
	at com.github.rinde.rinsim.experiment.LocalComputer$ExperimentRunner.call(LocalComputer.java:202)
	at com.github.rinde.rinsim.experiment.LocalComputer$ExperimentRunner.call(LocalComputer.java:193)
	at com.google.common.util.concurrent.TrustedListenableFutureTask$TrustedFutureInterruptibleTask.runInterruptibly(TrustedListenableFutureTask.java:125)
	at com.google.common.util.concurrent.InterruptibleTask.run(InterruptibleTask.java:57)
	at com.google.common.util.concurrent.TrustedListenableFutureTask.run(TrustedListenableFutureTask.java:78)
	at com.google.common.util.concurrent.MoreExecutors$DirectExecutorService.execute(MoreExecutors.java:258)
	at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
	at com.google.common.util.concurrent.AbstractListeningExecutorService.submit(AbstractListeningExecutorService.java:66)
	at com.github.rinde.rinsim.experiment.LocalComputer.compute(LocalComputer.java:81)
	at com.github.rinde.rinsim.experiment.Experiment$Builder.perform(Experiment.java:684)
	at com.github.rinde.rinsim.experiment.Experiment$Builder.perform(Experiment.java:703)
	at com.github.rinde.rinsim.examples.experiment.ExperimentExample.main(ExperimentExample.java:199)
Caused by: java.lang.NullPointerException
	at org.eclipse.swt.widgets.TabFolder.gtk_switch_page(Unknown Source)
	at org.eclipse.swt.widgets.Widget.windowProc(Unknown Source)
	at org.eclipse.swt.widgets.Display.windowProc(Unknown Source)
	at org.eclipse.swt.internal.gtk.OS._gtk_widget_show(Native Method)
	at org.eclipse.swt.internal.gtk.OS.gtk_widget_show(Unknown Source)
	at org.eclipse.swt.widgets.TabFolder.createItem(Unknown Source)
	at org.eclipse.swt.widgets.TabItem.createWidget(Unknown Source)
	at org.eclipse.swt.widgets.TabItem.<init>(Unknown Source)
	at com.github.rinde.rinsim.ui.SimulationViewer.configurePanels(SimulationViewer.java:254)
	at com.github.rinde.rinsim.ui.SimulationViewer.panelsLayout(SimulationViewer.java:199)
	at com.github.rinde.rinsim.ui.SimulationViewer.show(SimulationViewer.java:181)
	at com.github.rinde.rinsim.ui.SimulationViewer$Builder$1.handleEvent(SimulationViewer.java:743)
	at com.github.rinde.rinsim.ui.View.show(View.java:149)
	at com.github.rinde.rinsim.core.Simulator.start(Simulator.java:186)
	at com.github.rinde.rinsim.experiment.Experiment.perform(Experiment.java:200)
	... 12 more