java.lang.ClassNotFoundException: javax.activation.DataContentHandlerFactory at jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582) at jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:185) at java.lang.ClassLoader.loadClass(ClassLoader.java:496) Caused: java.lang.ClassNotFoundException: javax.activation.DataContentHandlerFactory starting from ModuleCL@60190343[org.openide.awt] with possible defining loaders [ModuleCL@55bb2de[org.netbeans.modules.xml.jaxb.api], Netigso[reference:file:extra/modules/com-sun-mail-javax-mail.jar], ModuleCL@61d872b2[org.radar.radar.netbeans]] and declared parents [org.netbeans.MainImpl$BootClassLoader@528931cf, ModuleCL@360e8c42[org.netbeans.api.annotations.common]] at org.netbeans.ProxyClassLoader.loadClass(ProxyClassLoader.java:224) at java.lang.ClassLoader.loadClass(ClassLoader.java:496) Caused: java.lang.NoClassDefFoundError: javax/activation/DataContentHandlerFactory at org.openide.awt.QuickSearch.setUpSearch(QuickSearch.java:369) at org.openide.awt.QuickSearch.(QuickSearch.java:107) at org.openide.awt.QuickSearch.attach(QuickSearch.java:197) at org.openide.awt.QuickSearch.attach(QuickSearch.java:125) at org.openide.explorer.view.TreeView$ExplorerTree.setupSearch(TreeView.java:1936) at org.openide.explorer.view.TreeView$ExplorerTree.(TreeView.java:1753) at org.openide.explorer.view.TreeView.initializeTree(TreeView.java:299) at org.openide.explorer.view.TreeView.(TreeView.java:238) at org.openide.explorer.view.TreeView.(TreeView.java:228) at org.openide.explorer.view.BeanTreeView.(BeanTreeView.java:98) at org.netbeans.modules.project.ui.TemplatesPanelGUI$CategoriesBeanTreeView.(TemplatesPanelGUI.java:679) at org.netbeans.modules.project.ui.TemplatesPanelGUI$CategoriesPanel.createComponent(TemplatesPanelGUI.java:729) at org.netbeans.modules.project.ui.TemplatesPanelGUI$ExplorerProviderPanel.initGUI(TemplatesPanelGUI.java:644) at org.netbeans.modules.project.ui.TemplatesPanelGUI$ExplorerProviderPanel.(TemplatesPanelGUI.java:535) at org.netbeans.modules.project.ui.TemplatesPanelGUI$CategoriesPanel.(TemplatesPanelGUI.java:719) at org.netbeans.modules.project.ui.TemplatesPanelGUI$CategoriesPanel.(TemplatesPanelGUI.java:719) at org.netbeans.modules.project.ui.TemplatesPanelGUI.initComponents(TemplatesPanelGUI.java:421) at org.netbeans.modules.project.ui.TemplatesPanelGUI.(TemplatesPanelGUI.java:156) at org.netbeans.modules.project.ui.ProjectTemplatePanel.getComponent(ProjectTemplatePanel.java:187) at org.netbeans.modules.project.ui.NewProjectWizard.createTemplateChooser(NewProjectWizard.java:104) at org.openide.loaders.TemplateWizard.templateChooser(TemplateWizard.java:320) at org.openide.loaders.TemplateWizardIterImpl.firstPanel(TemplateWizardIterImpl.java:87) at org.openide.loaders.TemplateWizardIterImpl.current(TemplateWizardIterImpl.java:144) at org.openide.loaders.TemplateWizardIteratorWrapper.current(TemplateWizardIteratorWrapper.java:92) at org.openide.WizardDescriptor.updateStateOpen(WizardDescriptor.java:844) at org.openide.WizardDescriptor.updateState(WizardDescriptor.java:822) at org.openide.loaders.TemplateWizard.updateState(TemplateWizard.java:761) at org.netbeans.modules.project.ui.NewProjectWizard.updateState(NewProjectWizard.java:84) at org.openide.loaders.TemplateWizard$2.run(TemplateWizard.java:497) at org.openide.loaders.TemplateWizard$2.run(TemplateWizard.java:494) at org.netbeans.modules.openide.util.NbMutexEventProvider$Event$1AWTWorker.run(NbMutexEventProvider.java:156) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:303) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:764) at java.awt.EventQueue.access$500(EventQueue.java:97) at java.awt.EventQueue$3.run(EventQueue.java:717) at java.awt.EventQueue$3.run(EventQueue.java:711) at java.security.AccessController.doPrivileged(AccessController.java:0) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:89) at java.awt.EventQueue.dispatchEvent(EventQueue.java:734) at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:199) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) at java.awt.EventDispatchThread.run(EventDispatchThread.java:90)