重新创建租户（创建已删除的租户）时出现Wso2问题。如果我重新启动wso2服务器，我就能够按预期在wso2上创建租户

从

ql管理UI

中删除租户并尝试重新创建租户时，出现以下问题：

[2019-10-22 09:46:34897]错误{org.wso2.carbon.user.core.common.DefaultRealm}-nullType类java.lang.reflect.InvocationTargetExceptionorg.wso2.carbon.user.core.UserStoreException:nullType类java.lang.reflect.InvocationTargetExceptionat org.wso2.carbon.user.core.common.DefaultRealm.createObjectWithOptions（DefaultRealm.java:395）org.wso2.carbon.user.core.common.DefaultRealm.InitializeObject（DefaultRealm.java:222）org.wso2.carbon.user.core.common.DefaultRealm.init（DefaultRealm.java:127）org.wso2.carbon.user.core.common.DefaultRealmService.initializeRealm（DefaultRealmService.java:264）org.wso2.carbon.user.core.common.DefaultRealmService.Getternal（DefaultRealmService.java:185）在org.wso2.carbon.user.core.common.DefaultRealmService.access$000（DefaultRealmService.java:63）在org.wso2.carbon.user.core.common.DefaultRealmService$1.run（DefaultRealmService.java:156）在org.wso2.carbon.user.core.common.DefaultRealmService$1.run（DefaultRealmService.java:153）位于org.wso2.carbon.user.core.common.DefaultRealmService.GettenantUserReam（DefaultRealmService.java:153）的java.security.AccessController.doPrivileged（本机方法），位于org.wso2.carbon.tenant.mgt.core.TenantPersistor.addTenantAdminUser（TenantPersistor.java:200），位于org.wso2.carbon.tenant.mgt.core.TenantPersistor.PersistentInUserStore（TenantPersistor.java:120）位于org.wso2.carbon.tenant.mgt.core.TenantPersistor.persistenant（TenantPersistor.java:66）位于org.wso2.carbon.tenant.mgt.services.TenantMgtAdminService.addTenant（TenantMgtAdminService.java:75）位于sun.reflect.nativeInvoke-MethodAccessorImpl.invoke0（本机方法）位于sun.reflect.NativeMethodAccessorImpl（NativeMethodAccessorImpl.java:62）位于sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43）位于java.lang.reflect.Method.invoke（Method.java:498）位于org.apache.axis2.rpc.receivers.RPCUtil.invokeServiceClass（RPCUtil.java:212）位于org.apache.axis2.RPCMessageReceiver.invokeBusinessLogic（RPCMessageReceiver.java:117）在org.apache.axis2.receivers.AbstractInOutMessageReceiver.invokeBusinessLogic（AbstractInOutMessageReceiver.java:40）在org.apache.axis2.receivers.AbstractMessageReceiver.Receiver（AbstractMessageReceiver.java:110）在org.apache.axis2.engine.AxisEngine.receive（AxisEngine.java:180）上在org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest（HTTPTransportUtils.java:173）在org.apache.axis2.transport.http.AxisServlet.doPost（AxisServlet.java:147）在org.wso2.carbon.core.transports.CarbonServlet.doPost（CarbonServlet.java:232）在javax.servlet.http.HttpServlet.service（HttpServlet.java:650）上位于org.eclipse.equinox.http.servlet.internal.ServletRegistration.service（ServletRegistration.java:61）的javax.servlet.http.HttpServlet.service（HttpServlet.java:731）位于org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias（ProxyServlet.java:128）位于org.eclipse.equinox.http.servlet.http.servlet.servlet.internal.ProxyServlet.68）javax.servlet.http.HttpServlet.service（HttpServlet.java:731）org.wso2.carbon.tomcat.ext.servlet.DelegationServlet.service（DelegationServlet.java:68）org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:303）org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:208）在org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:241）在org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:208）在org.owasp.csrfguard.CsrfGuardFilter.doFilter（CsrfGuardFilter.java:72）上org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:241）org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:208）org.apache.catalina.filters.HttpHeaderSecurityFilter.doFilter（HttpHeaderSecurityFilter.java:124）org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:241）org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:208）org.wso2.carbon.tomcat.ext.filter.CharacterSetFilter.doFilter（CharacterSetFilter.java:65）org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:241）org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:208）org.apache.catalina.filters.HttpHeaderSecurityFilter.doFilter（HttpHeaderSecurityFilter.java:124）org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:241）org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:208）org.apache.catalina.core.StandardWrapperValve.invoke（StandardWrapperValve.java:219）org.apache.catalina.core.StandardContextValve.invoke（StandardContextValve.java:110）org.apache.catalina.core.StandardHostValve.invoke（StandardHostValve.java:169）org.apache.catalina.valves.ErrorReportValve.invoke（ErrorReportValve.java:103）org.wso2.carbon.identity.context.rewrite.valve.TenantContextRewriteValve.invoke（TenantContextRewriteValve.java:80）org.wso2.carbon.identity.authz.valve.AuthorizationValve.invoke（AuthorizationValve.java:91）org.wso2.carbon.identity.auth.valve.AuthenticationValve.invoke（AuthenticationValve.java:65）org.wso2.carbon.tomcat.ext.valves.CompositeValve.continvocation（CompositeValve.java:99）org.wso2.carbon.tomcat.ext.valves.CarbonTomcatValve$1.invoke（CarbonTomcatValve.java:47）org.wso2.carbon.webapp.mgt.TenantLazyLoaderValve.invoke（TenantLazyLoaderValve.java:57）org.wso2.carbon.tomcat.ext.valves.TomcatValveContainer.invokeValves（TomcatValveContainer.java:47）org.wso2.carbon.tomcat.ext.valves.compositevalve