java.lang.NullPointerException

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  • Thymeleaf applications may experience frequent null-pointer exceptions in their production logs or load test logs due to a multi-threading issue in Spring's PropertyOrFieldReference class. See also https://github.com/thymeleaf/thymeleaf-spring/issues/83 for a reproduction path. The cacheManager in Thymeleaf shares SpelExpression objects over multiple threads. These threads could possibly change concurrently the shared field ast.cachedReadAccessor, which happens in class PropertyOrFieldReference. Added a patch file that solves this issue. {code} SEVERE: Servlet.service() for servlet [spring] in context with path [] threw exception [Request processing failed; nested exception is org.thymeleaf.exceptions.TemplateProcessingException: Exception evaluating SpringEL expression: "prices" (page_element:9)] with root cause java.lang.NullPointerException at org.springframework.expression.spel.ast.PropertyOrFieldReference.getValueInternal(PropertyOrFieldReference.java:84) at org.springframework.expression.spel.ast.SpelNodeImpl.getValue(SpelNodeImpl.java:115) at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:265) at org.thymeleaf.spring4.expression.SpelVariableExpressionEvaluator.evaluate(SpelVariableExpressionEvaluator.java:139) at org.thymeleaf.standard.expression.SelectionVariableExpression.executeSelectionVariable(SelectionVariableExpression.java:146) at org.thymeleaf.standard.expression.SimpleExpression.executeSimple(SimpleExpression.java:80) at org.thymeleaf.standard.expression.Expression.execute(Expression.java:103) at org.thymeleaf.standard.expression.Expression.execute(Expression.java:133) at org.thymeleaf.standard.expression.Expression.execute(Expression.java:120) at org.thymeleaf.standard.fragment.StandardFragmentProcessor.resolveFragmentParameters(StandardFragmentProcessor.java:154) at org.thymeleaf.standard.fragment.StandardFragmentProcessor.computeStandardFragmentSpec(StandardFragmentProcessor.java:98) at org.thymeleaf.standard.processor.attr.AbstractStandardFragmentHandlingAttrProcessor.computeFragment(AbstractStandardFragmentHandlingAttrProcessor.java:68) at org.thymeleaf.processor.attr.AbstractFragmentHandlingAttrProcessor.processAttribute(AbstractFragmentHandlingAttrProcessor.java:63) at org.thymeleaf.processor.attr.AbstractAttrProcessor.doProcess(AbstractAttrProcessor.java:87) at org.thymeleaf.processor.AbstractProcessor.process(AbstractProcessor.java:212) at org.thymeleaf.dom.Node.applyNextProcessor(Node.java:1017) at org.thymeleaf.dom.Node.processNode(Node.java:972) at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695) at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668) at org.thymeleaf.dom.Node.processNode(Node.java:990) at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695) at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668) at org.thymeleaf.dom.Node.processNode(Node.java:990) at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695) at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668) at org.thymeleaf.dom.Node.processNode(Node.java:990) at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695) at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668) at org.thymeleaf.dom.Node.processNode(Node.java:990) at org.thymeleaf.dom.Document.process(Document.java:93) at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1155) at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1060) at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1011) at org.thymeleaf.spring4.view.ThymeleafView.renderFragment(ThymeleafView.java:335) at org.thymeleaf.spring4.view.ThymeleafView.render(ThymeleafView.java:190) at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1228) at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1011) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:955) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852) at javax.servlet.http.HttpServlet.service(HttpServlet.java:621) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837) at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) 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:222) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) {code}
    via by Rene Avontuur,
  • Thymeleaf applications may experience frequent null-pointer exceptions in their production logs or load test logs due to a multi-threading issue in Spring's PropertyOrFieldReference class. See also https://github.com/thymeleaf/thymeleaf-spring/issues/83 for a reproduction path. The cacheManager in Thymeleaf shares SpelExpression objects over multiple threads. These threads could possibly change concurrently the shared field ast.cachedReadAccessor, which happens in class PropertyOrFieldReference. Added a patch file that solves this issue. {code} SEVERE: Servlet.service() for servlet [spring] in context with path [] threw exception [Request processing failed; nested exception is org.thymeleaf.exceptions.TemplateProcessingException: Exception evaluating SpringEL expression: "prices" (page_element:9)] with root cause java.lang.NullPointerException at org.springframework.expression.spel.ast.PropertyOrFieldReference.getValueInternal(PropertyOrFieldReference.java:84) at org.springframework.expression.spel.ast.SpelNodeImpl.getValue(SpelNodeImpl.java:115) at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:265) at org.thymeleaf.spring4.expression.SpelVariableExpressionEvaluator.evaluate(SpelVariableExpressionEvaluator.java:139) at org.thymeleaf.standard.expression.SelectionVariableExpression.executeSelectionVariable(SelectionVariableExpression.java:146) at org.thymeleaf.standard.expression.SimpleExpression.executeSimple(SimpleExpression.java:80) at org.thymeleaf.standard.expression.Expression.execute(Expression.java:103) at org.thymeleaf.standard.expression.Expression.execute(Expression.java:133) at org.thymeleaf.standard.expression.Expression.execute(Expression.java:120) at org.thymeleaf.standard.fragment.StandardFragmentProcessor.resolveFragmentParameters(StandardFragmentProcessor.java:154) at org.thymeleaf.standard.fragment.StandardFragmentProcessor.computeStandardFragmentSpec(StandardFragmentProcessor.java:98) at org.thymeleaf.standard.processor.attr.AbstractStandardFragmentHandlingAttrProcessor.computeFragment(AbstractStandardFragmentHandlingAttrProcessor.java:68) at org.thymeleaf.processor.attr.AbstractFragmentHandlingAttrProcessor.processAttribute(AbstractFragmentHandlingAttrProcessor.java:63) at org.thymeleaf.processor.attr.AbstractAttrProcessor.doProcess(AbstractAttrProcessor.java:87) at org.thymeleaf.processor.AbstractProcessor.process(AbstractProcessor.java:212) at org.thymeleaf.dom.Node.applyNextProcessor(Node.java:1017) at org.thymeleaf.dom.Node.processNode(Node.java:972) at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695) at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668) at org.thymeleaf.dom.Node.processNode(Node.java:990) at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695) at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668) at org.thymeleaf.dom.Node.processNode(Node.java:990) at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695) at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668) at org.thymeleaf.dom.Node.processNode(Node.java:990) at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695) at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668) at org.thymeleaf.dom.Node.processNode(Node.java:990) at org.thymeleaf.dom.Document.process(Document.java:93) at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1155) at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1060) at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1011) at org.thymeleaf.spring4.view.ThymeleafView.renderFragment(ThymeleafView.java:335) at org.thymeleaf.spring4.view.ThymeleafView.render(ThymeleafView.java:190) at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1228) at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1011) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:955) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852) at javax.servlet.http.HttpServlet.service(HttpServlet.java:621) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837) at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) 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:222) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) {code}
    via by Rene Avontuur,
  • We use Spring Expressions in conjuction with Spring Integration and starting Spring Framwork version 4.1 we've found such Exception in Logs: {code} org.springframework.messaging.MessageHandlingException: Expression evaluation failed: payload.site at org.springframework.integration.util.AbstractExpressionEvaluator.evaluateExpression(AbstractExpressionEvaluator.java:133) at org.springframework.integration.handler.ExpressionEvaluatingMessageProcessor.processMessage(ExpressionEvaluatingMessageProcessor.java:76) at org.springframework.integration.router.AbstractMessageProcessingRouter.getChannelKeys(AbstractMessageProcessingRouter.java:59) at org.springframework.integration.router.AbstractMappingMessageRouter.determineTargetChannels(AbstractMappingMessageRouter.java:183) at org.springframework.integration.router.AbstractMessageRouter.handleMessageInternal(AbstractMessageRouter.java:166) at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:78) at sun.reflect.GeneratedMethodAccessor197.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317) at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) at org.springframework.integration.monitor.SimpleMessageHandlerMetrics.handleMessage(SimpleMessageHandlerMetrics.java:106) at org.springframework.integration.monitor.SimpleMessageHandlerMetrics.invoke(SimpleMessageHandlerMetrics.java:86) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) at com.sun.proxy.$Proxy30.handleMessage(Unknown Source) at org.springframework.integration.endpoint.PollingConsumer.handleMessage(PollingConsumer.java:74) at org.springframework.integration.endpoint.AbstractPollingEndpoint.doPoll(AbstractPollingEndpoint.java:205) at org.springframework.integration.endpoint.AbstractPollingEndpoint.access$000(AbstractPollingEndpoint.java:55) at org.springframework.integration.endpoint.AbstractPollingEndpoint$1.call(AbstractPollingEndpoint.java:149) at org.springframework.integration.endpoint.AbstractPollingEndpoint$1.call(AbstractPollingEndpoint.java:146) at org.springframework.integration.endpoint.AbstractPollingEndpoint$Poller$1.run(AbstractPollingEndpoint.java:284) at org.springframework.integration.util.ErrorHandlingTaskExecutor$1.run(ErrorHandlingTaskExecutor.java:52) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744) Caused by: java.lang.NullPointerException at org.springframework.expression.spel.ast.PropertyOrFieldReference$AccessorLValue.getValue(PropertyOrFieldReference.java:365) at org.springframework.expression.spel.ast.CompoundExpression.getValueInternal(CompoundExpression.java:87) at org.springframework.expression.spel.ast.SpelNodeImpl.getTypedValue(SpelNodeImpl.java:126) at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:327) at org.springframework.integration.util.AbstractExpressionEvaluator.evaluateExpression(AbstractExpressionEvaluator.java:159) at org.springframework.integration.util.AbstractExpressionEvaluator.evaluateExpression(AbstractExpressionEvaluator.java:119) ... 26 more {code} we are debuging now whether payload.site could be in some cases null. But we are sure that not and in previous versions it worked. So could you take a look, what maybe wrong in SpEL, which was updated since last version? Details will be added.
    via by Franz Neumann,
  • We use Spring Expressions in conjuction with Spring Integration and starting Spring Framwork version 4.1 we've found such Exception in Logs: {code} org.springframework.messaging.MessageHandlingException: Expression evaluation failed: payload.site at org.springframework.integration.util.AbstractExpressionEvaluator.evaluateExpression(AbstractExpressionEvaluator.java:133) at org.springframework.integration.handler.ExpressionEvaluatingMessageProcessor.processMessage(ExpressionEvaluatingMessageProcessor.java:76) at org.springframework.integration.router.AbstractMessageProcessingRouter.getChannelKeys(AbstractMessageProcessingRouter.java:59) at org.springframework.integration.router.AbstractMappingMessageRouter.determineTargetChannels(AbstractMappingMessageRouter.java:183) at org.springframework.integration.router.AbstractMessageRouter.handleMessageInternal(AbstractMessageRouter.java:166) at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:78) at sun.reflect.GeneratedMethodAccessor197.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317) at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) at org.springframework.integration.monitor.SimpleMessageHandlerMetrics.handleMessage(SimpleMessageHandlerMetrics.java:106) at org.springframework.integration.monitor.SimpleMessageHandlerMetrics.invoke(SimpleMessageHandlerMetrics.java:86) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) at com.sun.proxy.$Proxy30.handleMessage(Unknown Source) at org.springframework.integration.endpoint.PollingConsumer.handleMessage(PollingConsumer.java:74) at org.springframework.integration.endpoint.AbstractPollingEndpoint.doPoll(AbstractPollingEndpoint.java:205) at org.springframework.integration.endpoint.AbstractPollingEndpoint.access$000(AbstractPollingEndpoint.java:55) at org.springframework.integration.endpoint.AbstractPollingEndpoint$1.call(AbstractPollingEndpoint.java:149) at org.springframework.integration.endpoint.AbstractPollingEndpoint$1.call(AbstractPollingEndpoint.java:146) at org.springframework.integration.endpoint.AbstractPollingEndpoint$Poller$1.run(AbstractPollingEndpoint.java:284) at org.springframework.integration.util.ErrorHandlingTaskExecutor$1.run(ErrorHandlingTaskExecutor.java:52) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744) Caused by: java.lang.NullPointerException at org.springframework.expression.spel.ast.PropertyOrFieldReference$AccessorLValue.getValue(PropertyOrFieldReference.java:365) at org.springframework.expression.spel.ast.CompoundExpression.getValueInternal(CompoundExpression.java:87) at org.springframework.expression.spel.ast.SpelNodeImpl.getTypedValue(SpelNodeImpl.java:126) at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:327) at org.springframework.integration.util.AbstractExpressionEvaluator.evaluateExpression(AbstractExpressionEvaluator.java:159) at org.springframework.integration.util.AbstractExpressionEvaluator.evaluateExpression(AbstractExpressionEvaluator.java:119) ... 26 more {code} we are debuging now whether payload.site could be in some cases null. But we are sure that not and in previous versions it worked. So could you take a look, what maybe wrong in SpEL, which was updated since last version? Details will be added.
    via by Franz Neumann,
  • Upgrading to Spring3.0 and Webflow2.3.1
    via by Vikram Gosain,
    • java.lang.NullPointerException at org.springframework.expression.spel.ast.PropertyOrFieldReference.getValueInternal(PropertyOrFieldReference.java:84) at org.springframework.expression.spel.ast.SpelNodeImpl.getValue(SpelNodeImpl.java:115) at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:265) at org.thymeleaf.spring4.expression.SpelVariableExpressionEvaluator.evaluate(SpelVariableExpressionEvaluator.java:139) at org.thymeleaf.standard.expression.SelectionVariableExpression.executeSelectionVariable(SelectionVariableExpression.java:146) at org.thymeleaf.standard.expression.SimpleExpression.executeSimple(SimpleExpression.java:80) at org.thymeleaf.standard.expression.Expression.execute(Expression.java:103) at org.thymeleaf.standard.expression.Expression.execute(Expression.java:133) at org.thymeleaf.standard.expression.Expression.execute(Expression.java:120) at org.thymeleaf.standard.fragment.StandardFragmentProcessor.resolveFragmentParameters(StandardFragmentProcessor.java:154) at org.thymeleaf.standard.fragment.StandardFragmentProcessor.computeStandardFragmentSpec(StandardFragmentProcessor.java:98) at org.thymeleaf.standard.processor.attr.AbstractStandardFragmentHandlingAttrProcessor.computeFragment(AbstractStandardFragmentHandlingAttrProcessor.java:68) at org.thymeleaf.processor.attr.AbstractFragmentHandlingAttrProcessor.processAttribute(AbstractFragmentHandlingAttrProcessor.java:63) at org.thymeleaf.processor.attr.AbstractAttrProcessor.doProcess(AbstractAttrProcessor.java:87) at org.thymeleaf.processor.AbstractProcessor.process(AbstractProcessor.java:212) at org.thymeleaf.dom.Node.applyNextProcessor(Node.java:1017) at org.thymeleaf.dom.Node.processNode(Node.java:972) at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695) at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668) at org.thymeleaf.dom.Node.processNode(Node.java:990) at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695) at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668) at org.thymeleaf.dom.Node.processNode(Node.java:990) at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695) at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668) at org.thymeleaf.dom.Node.processNode(Node.java:990) at org.thymeleaf.dom.NestableNode.computeNextChild(NestableNode.java:695) at org.thymeleaf.dom.NestableNode.doAdditionalProcess(NestableNode.java:668) at org.thymeleaf.dom.Node.processNode(Node.java:990) at org.thymeleaf.dom.Document.process(Document.java:93) at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1155) at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1060) at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1011) at org.thymeleaf.spring4.view.ThymeleafView.renderFragment(ThymeleafView.java:335) at org.thymeleaf.spring4.view.ThymeleafView.render(ThymeleafView.java:190) at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1228) at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1011) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:955) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852) at javax.servlet.http.HttpServlet.service(HttpServlet.java:621) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837) at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) 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:222) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745)
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