java.lang.AssertionError at org.netbeans.modules.web.project.WebProjectOperations.notifyDeleting(WebProjectOperations.java:183) at org.netbeans.spi.project.support.ProjectOperations.notifyDeleting(ProjectOperations.java:129) at org.netbeans.modules.project.uiapi.DefaultProjectOperationsImplementation.performDelete(DefaultProjectOperationsImplementation.java:130) at org.netbeans.modules.project.uiapi.DefaultProjectOperationsImplementation.access$200(DefaultProjectOperationsImplementation.java:101) at org.netbeans.modules.project.uiapi.DefaultProjectOperationsImplementation$1.execute(DefaultProjectOperationsImplementation.java:205) at org.netbeans.modules.project.uiapi.DefaultProjectOperationsImplementation$6$1.run(DefaultProjectOperationsImplementation.java:649) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1454) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2036)