Running examples in ‘iplots-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: ibar
> ### Title: Interactive Bar Chart
> ### Aliases: ibar
> ### Keywords: hplot
> 
> ### ** Examples
> 
> data(iris)
> attach(iris)
> ibar(Species)
Exception in thread "AWT-EventQueue-0" Error in .jcall(.iplots.fw, "Lorg/rosuda/ibase/plots/BarCanvas;", "newBarchart",  : 
  java.lang.NullPointerException
Calls: ibar ... .iplot.iBar -> .iplot.new -> .jcall -> .jcheck -> .Call
java.lang.NullPointerExceptionExecution halted

	at org.rosuda.ibase.toolkit.PlotTextVector.finishAdd(PlotTextVector.java:125)
	at org.rosuda.ibase.toolkit.BaseCanvas.endAddingLabels(BaseCanvas.java:1441)
	at org.rosuda.ibase.plots.BarCanvas.paintBack(BarCanvas.java:254)
	at org.rosuda.ibase.toolkit.BaseCanvas.paintPoGraSS(BaseCanvas.java:324)
	at org.rosuda.ibase.toolkit.AWTGraphicsDevice.paintLayer(AWTGraphicsDevice.java:75)
	at org.rosuda.ibase.toolkit.AWTGraphicsDevice.update(AWTGraphicsDevice.java:167)
	at org.rosuda.ibase.toolkit.AWTGraphicsDevice.paint(AWTGraphicsDevice.java:90)
	at org.rosuda.ibase.toolkit.PlotCanvas.paint(PlotCanvas.java:19)
	at sun.awt.RepaintArea.paintComponent(RepaintArea.java:264)
	at sun.awt.X11.XRepaintArea.paintComponent(XRepaintArea.java:64)
	at sun.awt.RepaintArea.paint(RepaintArea.java:240)
	at sun.awt.X11.XComponentPeer.handleEvent(XComponentPeer.java:584)
	at java.awt.Component.dispatchEventImpl(Component.java:4965)
	at java.awt.Component.dispatchEvent(Component.java:4711)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
	at java.awt.EventQueue.access$500(EventQueue.java:97)
	at java.awt.EventQueue$3.run(EventQueue.java:709)
	at java.awt.EventQueue$3.run(EventQueue.java:703)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
	at java.awt.EventQueue$4.run(EventQueue.java:731)
	at java.awt.EventQueue$4.run(EventQueue.java:729)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)