java.lang.NullPointerException
at org.eclipse.swt.widgets.Control.internal_new_GC(Co ntrol.java:2178)
at org.eclipse.swt.graphics.GC.<init>(GC.java:174)
at org.eclipse.swt.graphics.GC.<init>(GC.java:135)
at org.eclipse.swt.custom.CTabFolder.updateItems(CTab Folder.java:3730)
at org.eclipse.swt.custom.CTabFolder.updateItems(CTab Folder.java:3726)
at org.eclipse.swt.custom.CTabFolder.onResize(CTabFol der.java:2118)
at org.eclipse.swt.custom.CTabFolder.lambda$0(CTabFol der.java:335)
at org.eclipse.swt.widgets.EventTable.sendEvent(Event Table.java:86)
at org.eclipse.swt.widgets.Display.sendEvent(Display. java:4247)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.ja va:1508)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.ja va:1531)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.ja va:1512)
at org.eclipse.swt.widgets.Control.resized(Control.ja va:3418)
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