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java.lang.NullPointerException: Cannot get property 'config' on null object	at org.codehaus.groovy.runtime.NullObject.getProperty(NullObject.java:60)	at org.codehaus.groovy.runtime.InvokerHelper.getProperty(InvokerHelper.java:172)	at org.codehaus.groovy.runtime.callsite.NullCallSite.getProperty(NullCallSite.java:47)	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGetProperty(AbstractCallSite.java:296)	at gsp_test320M2index_gsp$_run_closure2$_closure4.doCall(gsp_test320M2index_gsp.groovy:37)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)	at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)	at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294)	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1024)	at groovy.lang.Closure.call(Closure.java:414)	at groovy.lang.Closure.call(Closure.java:408)	at org.grails.taglib.TagBodyClosure.executeClosure(TagBodyClosure.java:200)	at org.grails.taglib.TagBodyClosure.captureClosureOutput(TagBodyClosure.java:102)	at org.grails.taglib.TagBodyClosure.call(TagBodyClosure.java:213)	at org.grails.plugins.web.taglib.SitemeshTagLib.wrapContentInBuffer(SitemeshTagLib.groovy:106)	at org.grails.plugins.web.taglib.SitemeshTagLib$_closure4.doCall(SitemeshTagLib.groovy:177)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)	at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)	at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294)	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1024)	at groovy.lang.Closure.call(Closure.java:414)	at org.grails.gsp.GroovyPage.invokeTagLibClosure(GroovyPage.java:417)	at org.grails.gsp.GroovyPage.invokeTag(GroovyPage.java:335)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)	at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)	at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:384)	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1024)	at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.callCurrent(PogoMetaClassSite.java:69)	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:52)	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:154)	at gsp_test320M2index_gsp$_run_closure2.doCall(gsp_test320M2index_gsp.groovy:66)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)	at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)	at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294)	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1024)	at groovy.lang.Closure.call(Closure.java:414)	at groovy.lang.Closure.call(Closure.java:408)	at org.grails.taglib.TagBodyClosure.executeClosure(TagBodyClosure.java:200)	at org.grails.taglib.TagBodyClosure.captureClosureOutput(TagBodyClosure.java:102)	at org.grails.taglib.TagBodyClosure.call(TagBodyClosure.java:213)	at org.grails.plugins.web.taglib.SitemeshTagLib.captureTagContent(SitemeshTagLib.groovy:48)	at org.grails.plugins.web.taglib.SitemeshTagLib.captureTagContent(SitemeshTagLib.groovy)	at org.grails.plugins.web.taglib.SitemeshTagLib$_closure3.doCall(SitemeshTagLib.groovy:156)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)	at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)	at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294)	at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1024)	at groovy.lang.Closure.call(Closure.java:414)	at org.grails.gsp.GroovyPage.invokeTagLibClosure(GroovyPage.java:417)	at org.grails.gsp.GroovyPage.invokeTag(GroovyPage.java:335)	at org.grails.gsp.GroovyPage$invokeTag$4.callCurrent(Unknown Source)	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:52)	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:154)	at gsp_test320M2index_gsp.run(gsp_test320M2index_gsp.groovy:80)	at org.grails.gsp.GroovyPageWritable.doWriteTo(GroovyPageWritable.java:162)	at org.grails.gsp.GroovyPageWritable.writeTo(GroovyPageWritable.java:82)	at org.grails.web.servlet.view.GroovyPageView.renderTemplate(GroovyPageView.java:76)	at org.grails.web.servlet.view.AbstractGrailsView.renderWithinGrailsWebRequest(AbstractGrailsView.java:71)	at org.grails.web.servlet.view.AbstractGrailsView.renderMergedOutputModel(AbstractGrailsView.java:55)	at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303)	at org.grails.web.sitemesh.GrailsLayoutView.renderInnerView(GrailsLayoutView.java:125)	at org.grails.web.sitemesh.GrailsLayoutView.obtainContent(GrailsLayoutView.java:106)	at org.grails.web.sitemesh.GrailsLayoutView.renderTemplate(GrailsLayoutView.java:55)	at org.grails.web.servlet.view.AbstractGrailsView.renderWithinGrailsWebRequest(AbstractGrailsView.java:71)	at org.grails.web.servlet.view.AbstractGrailsView.renderMergedOutputModel(AbstractGrailsView.java:55)	at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303)	at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1257)	at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1037)	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:980)	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)	at org.springframework.boot.web.filter.ApplicationContextHeaderFilter.doFilterInternal(ApplicationContextHeaderFilter.java:55)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)	at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:105)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)	at org.grails.web.servlet.mvc.GrailsWebRequestFilter.doFilterInternal(GrailsWebRequestFilter.java:75)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)	at org.grails.web.filters.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:67)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)	at org.springframework.boot.actuate.autoconfigure.MetricsFilter.doFilterInternal(MetricsFilter.java:107)	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:108)	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:522)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349)	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:1110)	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:785)	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1425)	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)	at java.lang.Thread.run(Thread.java:745)