java.io.IOException at org.netbeans.modules.j2ee.ejbjarproject.classpath.EjbJarProjectClassPathExtender.addLibraries(EjbJarProjectClassPathExtender.java:124) at org.netbeans.modules.j2ee.ejbjarproject.classpath.EjbJarProjectClassPathExtender.addLibrary(EjbJarProjectClassPathExtender.java:79) at org.netbeans.modules.j2ee.persistence.wizard.Util.addLibraryToProject(Util.java:472) at org.netbeans.modules.j2ee.persistence.wizard.Util.buildPersistenceUnitUsingWizard(Util.java:441) at org.netbeans.modules.j2ee.persistence.wizard.fromdb.EntityClassesPanel.createPUButtonActionPerformed(EntityClassesPanel.java:390) at org.netbeans.modules.j2ee.persistence.wizard.fromdb.EntityClassesPanel.access$300(EntityClassesPanel.java:53) at org.netbeans.modules.j2ee.persistence.wizard.fromdb.EntityClassesPanel$4.actionPerformed(EntityClassesPanel.java:302) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236) at java.awt.Component.processMouseEvent(Component.java:6038) at javax.swing.JComponent.processMouseEvent(JComponent.java:3260) at java.awt.Component.processEvent(Component.java:5803) at java.awt.Container.processEvent(Container.java:2058) at java.awt.Component.dispatchEventImpl(Component.java:4410) at java.awt.Container.dispatchEventImpl(Container.java:2116) at java.awt.Component.dispatchEvent(Component.java:4240) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916) at java.awt.Container.dispatchEventImpl(Container.java:2102) at java.awt.Window.dispatchEventImpl(Window.java:2429) at java.awt.Component.dispatchEvent(Component.java:4240) at java.awt.EventQueue.dispatchEvent(EventQueue.java:599) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:177) at java.awt.Dialog$1.run(Dialog.java:1039) at java.awt.Dialog$3.run(Dialog.java:1091) at java.security.AccessController.doPrivileged(Native Method) at java.awt.Dialog.show(Dialog.java:1089) at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:775) at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:809) at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:797) at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:54) at org.openide.util.Mutex.doEventAccess(Mutex.java:1201) at org.openide.util.Mutex.readAccess(Mutex.java:220) at org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:782) at java.awt.Component.show(Component.java:1419) at java.awt.Component.setVisible(Component.java:1372) at java.awt.Window.setVisible(Window.java:801) at java.awt.Dialog.setVisible(Dialog.java:979) at org.openide.loaders.TemplateWizard.instantiateImpl(TemplateWizard.java:475) at org.openide.loaders.TemplateWizard.instantiate(TemplateWizard.java:354) at org.netbeans.modules.project.ui.actions.NewFile.doPerform(NewFile.java:125) at org.netbeans.modules.project.ui.actions.NewFile.access$200(NewFile.java:58) at org.netbeans.modules.project.ui.actions.NewFile$PopupListener.actionPerformed(NewFile.java:319) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242) at javax.swing.AbstractButton.doClick(AbstractButton.java:357) at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1170) at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1211) at java.awt.Component.processMouseEvent(Component.java:6038) at javax.swing.JComponent.processMouseEvent(JComponent.java:3260) at java.awt.Component.processEvent(Component.java:5803) at java.awt.Container.processEvent(Container.java:2058) at java.awt.Component.dispatchEventImpl(Component.java:4410) at java.awt.Container.dispatchEventImpl(Container.java:2116) at java.awt.Component.dispatchEvent(Component.java:4240) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916) at java.awt.Container.dispatchEventImpl(Container.java:2102) at java.awt.Window.dispatchEventImpl(Window.java:2429) at java.awt.Component.dispatchEvent(Component.java:4240) [catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:599) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160) at java.awt.EventDispatchThread.run(EventDispatchThread.java:121) Caused by: org.openide.ErrorManager$AnnException: at org.openide.ErrorManager$AnnException.findOrCreate(ErrorManager.java:851) at org.openide.ErrorManager$DelegatingErrorManager.annotate(ErrorManager.java:629) at org.openide.ErrorManager.annotate(ErrorManager.java:444) at org.netbeans.modules.j2ee.ejbjarproject.classpath.EjbJarProjectClassPathExtender.addLibraries(EjbJarProjectClassPathExtender.java:125) ... 75 more ==> java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.remove(HashMap.java:810) at org.netbeans.spi.project.support.ant.AntProjectHelper.save(AntProjectHelper.java:564) at org.netbeans.spi.project.support.ant.AntProjectHelper.access$100(AntProjectHelper.java:69) at org.netbeans.spi.project.support.ant.AntProjectHelper$1.save(AntProjectHelper.java:107) at org.netbeans.modules.project.ant.AntBasedProjectFactorySingleton.saveProject(AntBasedProjectFactorySingleton.java:191) at org.netbeans.api.project.ProjectManager$6.run(ProjectManager.java:560) at org.netbeans.api.project.ProjectManager$6.run(ProjectManager.java:554) at org.openide.util.Mutex.writeAccess(Mutex.java:357) at org.netbeans.api.project.ProjectManager.saveProject(ProjectManager.java:553) at org.netbeans.modules.j2ee.ejbjarproject.classpath.EjbJarProjectClassPathExtender$1.run(EjbJarProjectClassPathExtender.java:112) at org.openide.util.Mutex.writeAccess(Mutex.java:357) at org.netbeans.modules.j2ee.ejbjarproject.classpath.EjbJarProjectClassPathExtender.addLibraries(EjbJarProjectClassPathExtender.java:85) at org.netbeans.modules.j2ee.ejbjarproject.classpath.EjbJarProjectClassPathExtender.addLibrary(EjbJarProjectClassPathExtender.java:79) at org.netbeans.modules.j2ee.persistence.wizard.Util.addLibraryToProject(Util.java:472) at org.netbeans.modules.j2ee.persistence.wizard.Util.buildPersistenceUnitUsingWizard(Util.java:441) at org.netbeans.modules.j2ee.persistence.wizard.fromdb.EntityClassesPanel.createPUButtonActionPerformed(EntityClassesPanel.java:390) at org.netbeans.modules.j2ee.persistence.wizard.fromdb.EntityClassesPanel.access$300(EntityClassesPanel.java:53) at org.netbeans.modules.j2ee.persistence.wizard.fromdb.EntityClassesPanel$4.actionPerformed(EntityClassesPanel.java:302) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236) at java.awt.Component.processMouseEvent(Component.java:6038) at javax.swing.JComponent.processMouseEvent(JComponent.java:3260) at java.awt.Component.processEvent(Component.java:5803) at java.awt.Container.processEvent(Container.java:2058) at java.awt.Component.dispatchEventImpl(Component.java:4410) at java.awt.Container.dispatchEventImpl(Container.java:2116) at java.awt.Component.dispatchEvent(Component.java:4240) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916) at java.awt.Container.dispatchEventImpl(Container.java:2102) at java.awt.Window.dispatchEventImpl(Window.java:2429) at java.awt.Component.dispatchEvent(Component.java:4240) at java.awt.EventQueue.dispatchEvent(EventQueue.java:599) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:177) at java.awt.Dialog$1.run(Dialog.java:1039) at java.awt.Dialog$3.run(Dialog.java:1091) at java.security.AccessController.doPrivileged(Native Method) at java.awt.Dialog.show(Dialog.java:1089) at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:775) at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:809) at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:797) at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:54) at org.openide.util.Mutex.doEventAccess(Mutex.java:1201) at org.openide.util.Mutex.readAccess(Mutex.java:220) at org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:782) at java.awt.Component.show(Component.java:1419) at java.awt.Component.setVisible(Component.java:1372) at java.awt.Window.setVisible(Window.java:801) at java.awt.Dialog.setVisible(Dialog.java:979) at org.openide.loaders.TemplateWizard.instantiateImpl(TemplateWizard.java:475) at org.openide.loaders.TemplateWizard.instantiate(TemplateWizard.java:354) at org.netbeans.modules.project.ui.actions.NewFile.doPerform(NewFile.java:125) at org.netbeans.modules.project.ui.actions.NewFile.access$200(NewFile.java:58) at org.netbeans.modules.project.ui.actions.NewFile$PopupListener.actionPerformed(NewFile.java:319) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242) at javax.swing.AbstractButton.doClick(AbstractButton.java:357) at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1170) at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1211) at java.awt.Component.processMouseEvent(Component.java:6038) at javax.swing.JComponent.processMouseEvent(JComponent.java:3260) at java.awt.Component.processEvent(Component.java:5803) at java.awt.Container.processEvent(Container.java:2058) at java.awt.Component.dispatchEventImpl(Component.java:4410) at java.awt.Container.dispatchEventImpl(Container.java:2116) at java.awt.Component.dispatchEvent(Component.java:4240) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916) at java.awt.Container.dispatchEventImpl(Container.java:2102) at java.awt.Window.dispatchEventImpl(Window.java:2429) at java.awt.Component.dispatchEvent(Component.java:4240) [catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:599) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160) at java.awt.EventDispatchThread.run(EventDispatchThread.java:121) ==>