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java.lang.NullPointerException: null	at java.util.ArrayList.addAll(ArrayList.java:472)	at org.apache.syncope.console.pages.panels.ResourceMappingPanel.getResourceSchemaNames(ResourceMappingPanel.java:405)	at org.apache.syncope.console.pages.panels.ResourceMappingPanel.initResourceSchemaNames(ResourceMappingPanel.java:383)	at org.apache.syncope.console.pages.panels.ResourceMappingPanel.(ResourceMappingPanel.java:150)	at org.apache.syncope.console.pages.ResourceModalPage.(ResourceModalPage.java:66)	at org.apache.syncope.console.pages.Resources$1$1$1.createPage(Resources.java:151)	at org.apache.wicket.extensions.ajax.markup.html.modal.ModalWindow.createPage(ModalWindow.java:807)	at org.apache.wicket.extensions.ajax.markup.html.modal.ModalWindow.getWindowOpenJavaScript(ModalWindow.java:1054)	at org.apache.wicket.extensions.ajax.markup.html.modal.ModalWindow.show(ModalWindow.java:357)	at org.apache.syncope.console.pages.Resources$1$1.onClick(Resources.java:157)	at org.apache.syncope.console.wicket.markup.html.form.ActionLinksPanel$3.onClick(ActionLinksPanel.java:119)	at org.apache.wicket.ajax.markup.html.AjaxLink$1.onEvent(AjaxLink.java:86)	at org.apache.wicket.ajax.AjaxEventBehavior.respond(AjaxEventBehavior.java:184)	at org.apache.wicket.ajax.AbstractDefaultAjaxBehavior.onRequest(AbstractDefaultAjaxBehavior.java:369)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)	at org.apache.wicket.RequestListenerInterface.internalInvoke(RequestListenerInterface.java:260)	at org.apache.wicket.RequestListenerInterface.invoke(RequestListenerInterface.java:241)	at org.apache.wicket.request.handler.ListenerInterfaceRequestHandler.invokeListener(ListenerInterfaceRequestHandler.java:255)	at org.apache.wicket.request.handler.ListenerInterfaceRequestHandler.respond(ListenerInterfaceRequestHandler.java:234)	at org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:784)	at org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)	at org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:255)	at org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212)	at org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:283)	at org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:188)	at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:244)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:928)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987)	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:539)	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:300)	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)	at java.lang.Thread.run(Thread.java:662)