java.lang.AssertionError at org.netbeans.spi.project.support.ant.ProjectProperties$PP.write(ProjectProperties.java:216) at org.netbeans.spi.project.support.ant.ProjectProperties.write(ProjectProperties.java:133) at org.netbeans.spi.project.support.ant.AntProjectHelper.save(AntProjectHelper.java:572) at org.netbeans.spi.project.support.ant.AntProjectHelper.access$100(AntProjectHelper.java:92) at org.netbeans.spi.project.support.ant.AntProjectHelper$1.save(AntProjectHelper.java:130) at org.netbeans.modules.project.ant.AntBasedProjectFactorySingleton.saveProject(AntBasedProjectFactorySingleton.java:215) at org.netbeans.api.project.ProjectManager$7.run(ProjectManager.java:611) at org.netbeans.api.project.ProjectManager$7.run(ProjectManager.java:601) at org.openide.util.Mutex.writeAccess(Mutex.java:433) at org.openide.util.Mutex$1R.run(Mutex.java:1305) at org.netbeans.api.project.ProjectManager$2$1.run(ProjectManager.java:120) at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:120) at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:499) at org.openide.filesystems.FileUtil.runAtomicAction(FileUtil.java:167) at org.netbeans.api.project.ProjectManager$2.execute(ProjectManager.java:118) at org.openide.util.Mutex.doWrapperAccess(Mutex.java:1320) at org.openide.util.Mutex.writeAccess(Mutex.java:426) at org.netbeans.api.project.ProjectManager.saveProject(ProjectManager.java:600) at org.netbeans.modules.web.project.api.WebProjectUtilities.createProjectImpl(WebProjectUtilities.java:301) at org.netbeans.modules.web.project.api.WebProjectUtilities.access$000(WebProjectUtilities.java:108) at org.netbeans.modules.web.project.api.WebProjectUtilities$1.run(WebProjectUtilities.java:175) at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:120) at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:499) at org.netbeans.modules.web.project.api.WebProjectUtilities.createProject(WebProjectUtilities.java:173) at org.netbeans.modules.web.project.ui.wizards.NewWebProjectWizardIterator.instantiate(NewWebProjectWizardIterator.java:150) at org.openide.loaders.TemplateWizard$InstantiatingIteratorBridge.instantiate(TemplateWizard.java:1023) at org.openide.loaders.TemplateWizard.handleInstantiate(TemplateWizard.java:595) at org.openide.loaders.TemplateWizard.instantiateNewObjects(TemplateWizard.java:416) at org.openide.loaders.TemplateWizardIterImpl.instantiate(TemplateWizardIterImpl.java:253) at org.openide.loaders.TemplateWizardIteratorWrapper.instantiate(TemplateWizardIteratorWrapper.java:165) at org.openide.WizardDescriptor.callInstantiateOpen(WizardDescriptor.java:1384) at org.openide.WizardDescriptor.callInstantiate(WizardDescriptor.java:1341) at org.openide.WizardDescriptor.access$1600(WizardDescriptor.java:119) at org.openide.WizardDescriptor$Listener$2$1.run(WizardDescriptor.java:1908) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:561) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:986)