java.lang.NullPointerException: The lib parameter cannot be null
   at org.openide.util.Parameters.notNull(Parameters.java:89)
   at org.netbeans.spi.project.support.ant.ReferenceHelper.copyLibrary(ReferenceHelper.java:1554)
   at org.netbeans.modules.web.project.api.WebProjectUtilities.copyRequiredLibraries(WebProjectUtilities.java:683)
   at org.netbeans.modules.web.project.api.WebProjectUtilities.access$100(WebProjectUtilities.java:122)
   at org.netbeans.modules.web.project.api.WebProjectUtilities$2.run(WebProjectUtilities.java:333)
   at org.netbeans.modules.web.project.api.WebProjectUtilities$2.run(WebProjectUtilities.java:330)
   at org.openide.util.Mutex.writeAccess(Mutex.java:443)
   at org.netbeans.modules.web.project.api.WebProjectUtilities.createProjectImpl(WebProjectUtilities.java:330)
   at org.netbeans.modules.web.project.api.WebProjectUtilities.access$000(WebProjectUtilities.java:122)
   at org.netbeans.modules.web.project.api.WebProjectUtilities$1.run(WebProjectUtilities.java:190)
   at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:127)
   at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:641)
   at org.netbeans.modules.web.project.api.WebProjectUtilities.createProject(WebProjectUtilities.java:187)
   at org.netbeans.modules.web.project.ui.wizards.NewWebProjectWizardIterator.instantiate(NewWebProjectWizardIterator.java:155)
   at org.openide.loaders.TemplateWizard$InstantiatingIteratorBridge.instantiate(TemplateWizard.java:1044)
   at org.openide.loaders.TemplateWizard.handleInstantiate(TemplateWizard.java:605)
   at org.openide.loaders.TemplateWizard.instantiateNewObjects(TemplateWizard.java:439)
   at org.openide.loaders.TemplateWizardIterImpl.instantiate(TemplateWizardIterImpl.java:253)
   at org.openide.loaders.TemplateWizardIteratorWrapper$ProgressInstantiatingIterator.instantiate(TemplateWizardIteratorWrapper.java:180)
   at org.openide.WizardDescriptor.callInstantiateOpen(WizardDescriptor.java:1626)
   at org.openide.WizardDescriptor.callInstantiate(WizardDescriptor.java:1570)
   at org.openide.WizardDescriptor.access$2300(WizardDescriptor.java:92)
   at org.openide.WizardDescriptor$Listener$2$1.run(WizardDescriptor.java:2257)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)