java.lang.NullPointerException
   at org.netbeans.modules.jshell.support.ShellSession.initClasspath(ShellSession.java:1036)
   at org.netbeans.modules.jshell.support.ShellSession.init(ShellSession.java:987)
   at org.netbeans.modules.jshell.support.ShellSession.start(ShellSession.java:494)
   at org.netbeans.modules.jshell.env.JShellEnvironment.doStartAndFire(JShellEnvironment.java:349)
   at org.netbeans.modules.jshell.env.JShellEnvironment.start(JShellEnvironment.java:290)
   at org.netbeans.modules.jshell.env.ShellRegistry.openProjectSession(ShellRegistry.java:243)
   at org.netbeans.modules.jshell.project.REPLAction2.perform(REPLAction2.java:84)
   at org.netbeans.modules.project.ui.actions.ProjectAction$1$1.run(ProjectAction.java:142)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
   at java.awt.EventQueue.access$500(EventQueue.java:97)
   at java.awt.EventQueue$3.run(EventQueue.java:709)
   at java.awt.EventQueue$3.run(EventQueue.java:703)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   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)