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[BUG?][Thymeleaf-spring4]There is a NullPointException in the Concurrent scene #180

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airclear opened this issue Apr 13, 2018 · 3 comments
Open

[BUG?][Thymeleaf-spring4]There is a NullPointException in the Concurrent scene #180

airclear opened this issue Apr 13, 2018 · 3 comments
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@danielfernandez
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@airclear
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airclear commented Apr 13, 2018 •
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@rtack

ENV

OS: OSX
JAVA: 1.8.0_144
Eclipse: Oxygen.1a Release (4.7.1a)
Container: Eclipse Jetty 3.9.0
Thymeleaf: 3.0.9.RELEASE
Thymeleaf-spring4: 3.0.9.RELEASE

DEMO

demo: demo.zip
run: Use Eclipse Jetty 3.9.0

Test command:

ab -t600 -c5 'http://localhost:8080/debug/index2/'

Exception

[2018-04-13 13:07:07,814] (TemplateEngine.java:1136) ERROR  - [THYMELEAF][qtp1525037790-32] Exception processing template "debug/index2": An error happened during template parsing (template: "ServletContext resource [/WEB-INF/views/debug/index2.html]")
org.thymeleaf.exceptions.TemplateInputException: An error happened during template parsing (template: "ServletContext resource [/WEB-INF/views/debug/index2.html]")
	at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parse(AbstractMarkupTemplateParser.java:241) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parseStandalone(AbstractMarkupTemplateParser.java:100) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.TemplateManager.parseAndProcess(TemplateManager.java:666) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1098) [thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1072) [thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.spring4.view.ThymeleafView.renderFragment(ThymeleafView.java:352) [thymeleaf-spring4-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.spring4.view.ThymeleafView.render(ThymeleafView.java:190) [thymeleaf-spring4-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1286) [spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1041) [spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:984) [spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) [spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) [spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) [spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:735) [javax.servlet.jar:?]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) [spring-webmvc-4.3.16.RELEASE.jar:4.3.16.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:848) [javax.servlet.jar:?]
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:684) [jetty-servlet.jar:8.1.14.v20131031]
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1496) [jetty-servlet.jar:8.1.14.v20131031]
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) [spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.3.16.RELEASE.jar:4.3.16.RELEASE]
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467) [jetty-servlet.jar:8.1.14.v20131031]
	at org.apache.logging.log4j.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:71) [log4j-web-2.4.jar:2.4]
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1467) [jetty-servlet.jar:8.1.14.v20131031]
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:499) [jetty-servlet.jar:8.1.14.v20131031]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137) [jetty-server.jar:8.1.14.v20131031]
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557) [jetty-security.jar:8.1.14.v20131031]
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231) [jetty-server.jar:8.1.14.v20131031]
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086) [jetty-server.jar:8.1.14.v20131031]
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:428) [jetty-servlet.jar:8.1.14.v20131031]
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193) [jetty-server.jar:8.1.14.v20131031]
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020) [jetty-server.jar:8.1.14.v20131031]
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135) [jetty-server.jar:8.1.14.v20131031]
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116) [jetty-server.jar:8.1.14.v20131031]
	at org.eclipse.jetty.server.Server.handle(Server.java:370) [jetty-server.jar:8.1.14.v20131031]
	at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:494) [jetty-server.jar:8.1.14.v20131031]
	at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:971) [jetty-server.jar:8.1.14.v20131031]
	at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:1033) [jetty-server.jar:8.1.14.v20131031]
	at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:644) [jetty-http.jar:8.1.14.v20131031]
	at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235) [jetty-http.jar:8.1.14.v20131031]
	at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82) [jetty-server.jar:8.1.14.v20131031]
	at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:667) [jetty-io.jar:8.1.14.v20131031]
	at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52) [jetty-io.jar:8.1.14.v20131031]
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608) [jetty-util.jar:8.1.14.v20131031]
	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543) [jetty-util.jar:8.1.14.v20131031]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
Caused by: org.attoparser.ParseException: Exception evaluating SpringEL expression: "box.name" (template: "debug/index2" - line 10, col 79)
	at org.attoparser.MarkupParser.parseDocument(MarkupParser.java:393) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
	at org.attoparser.MarkupParser.parse(MarkupParser.java:257) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
	at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parse(AbstractMarkupTemplateParser.java:230) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	... 44 more
Caused by: org.thymeleaf.exceptions.TemplateProcessingException: Exception evaluating SpringEL expression: "box.name" (template: "debug/index2" - line 10, col 79)
	at org.thymeleaf.spring4.expression.SPELVariableExpressionEvaluator.evaluate(SPELVariableExpressionEvaluator.java:290) ~[thymeleaf-spring4-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.standard.expression.VariableExpression.executeVariableExpression(VariableExpression.java:165) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.standard.expression.SimpleExpression.executeSimple(SimpleExpression.java:66) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.standard.expression.Expression.execute(Expression.java:109) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.standard.expression.Expression.execute(Expression.java:138) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.standard.processor.AbstractStandardExpressionAttributeTagProcessor.doProcess(AbstractStandardExpressionAttributeTagProcessor.java:126) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.processor.element.AbstractAttributeTagProcessor.doProcess(AbstractAttributeTagProcessor.java:74) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.processor.element.AbstractElementTagProcessor.process(AbstractElementTagProcessor.java:95) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.util.ProcessorConfigurationUtils$ElementTagProcessorWrapper.process(ProcessorConfigurationUtils.java:633) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.ProcessorTemplateHandler.handleOpenElement(ProcessorTemplateHandler.java:1314) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.OpenElementTag.beHandled(OpenElementTag.java:205) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.Model.process(Model.java:282) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.Model.process(Model.java:290) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.IteratedGatheringModelProcessable.processIterationModel(IteratedGatheringModelProcessable.java:367) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.IteratedGatheringModelProcessable.process(IteratedGatheringModelProcessable.java:221) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.ProcessorTemplateHandler.handleCloseElement(ProcessorTemplateHandler.java:1640) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.TemplateHandlerAdapterMarkupHandler.handleCloseElementEnd(TemplateHandlerAdapterMarkupHandler.java:388) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.templateparser.markup.InlinedOutputExpressionMarkupHandler$InlineMarkupAdapterPreProcessorHandler.handleCloseElementEnd(InlinedOutputExpressionMarkupHandler.java:322) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.standard.inline.OutputExpressionInlinePreProcessorHandler.handleCloseElementEnd(OutputExpressionInlinePreProcessorHandler.java:220) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.templateparser.markup.InlinedOutputExpressionMarkupHandler.handleCloseElementEnd(InlinedOutputExpressionMarkupHandler.java:164) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.attoparser.HtmlElement.handleCloseElementEnd(HtmlElement.java:169) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
	at org.attoparser.HtmlMarkupHandler.handleCloseElementEnd(HtmlMarkupHandler.java:412) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
	at org.attoparser.MarkupEventProcessorHandler.handleCloseElementEnd(MarkupEventProcessorHandler.java:473) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
	at org.attoparser.ParsingElementMarkupUtil.parseCloseElement(ParsingElementMarkupUtil.java:201) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
	at org.attoparser.MarkupParser.parseBuffer(MarkupParser.java:725) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
	at org.attoparser.MarkupParser.parseDocument(MarkupParser.java:301) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
	at org.attoparser.MarkupParser.parse(MarkupParser.java:257) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
	at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parse(AbstractMarkupTemplateParser.java:230) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	... 44 more
Caused by: java.lang.RuntimeException: java.lang.NullPointerException
	at org.springframework.expression.spel.ast.PropertyOrFieldReference$AccessorLValue.getValue(PropertyOrFieldReference.java:393) ~[classes/:4.3.16.RELEASE]
	at org.springframework.expression.spel.ast.CompoundExpression.getValueInternal(CompoundExpression.java:88) ~[spring-expression-4.3.16.RELEASE.jar:4.3.16.RELEASE]
	at org.springframework.expression.spel.ast.SpelNodeImpl.getValue(SpelNodeImpl.java:121) ~[spring-expression-4.3.16.RELEASE.jar:4.3.16.RELEASE]
	at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:324) ~[spring-expression-4.3.16.RELEASE.jar:4.3.16.RELEASE]
	at org.thymeleaf.spring4.expression.SPELVariableExpressionEvaluator.evaluate(SPELVariableExpressionEvaluator.java:263) ~[thymeleaf-spring4-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.standard.expression.VariableExpression.executeVariableExpression(VariableExpression.java:165) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.standard.expression.SimpleExpression.executeSimple(SimpleExpression.java:66) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.standard.expression.Expression.execute(Expression.java:109) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.standard.expression.Expression.execute(Expression.java:138) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.standard.processor.AbstractStandardExpressionAttributeTagProcessor.doProcess(AbstractStandardExpressionAttributeTagProcessor.java:126) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.processor.element.AbstractAttributeTagProcessor.doProcess(AbstractAttributeTagProcessor.java:74) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.processor.element.AbstractElementTagProcessor.process(AbstractElementTagProcessor.java:95) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.util.ProcessorConfigurationUtils$ElementTagProcessorWrapper.process(ProcessorConfigurationUtils.java:633) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.ProcessorTemplateHandler.handleOpenElement(ProcessorTemplateHandler.java:1314) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.OpenElementTag.beHandled(OpenElementTag.java:205) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.Model.process(Model.java:282) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.Model.process(Model.java:290) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.IteratedGatheringModelProcessable.processIterationModel(IteratedGatheringModelProcessable.java:367) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.IteratedGatheringModelProcessable.process(IteratedGatheringModelProcessable.java:221) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.ProcessorTemplateHandler.handleCloseElement(ProcessorTemplateHandler.java:1640) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.TemplateHandlerAdapterMarkupHandler.handleCloseElementEnd(TemplateHandlerAdapterMarkupHandler.java:388) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.templateparser.markup.InlinedOutputExpressionMarkupHandler$InlineMarkupAdapterPreProcessorHandler.handleCloseElementEnd(InlinedOutputExpressionMarkupHandler.java:322) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.standard.inline.OutputExpressionInlinePreProcessorHandler.handleCloseElementEnd(OutputExpressionInlinePreProcessorHandler.java:220) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.templateparser.markup.InlinedOutputExpressionMarkupHandler.handleCloseElementEnd(InlinedOutputExpressionMarkupHandler.java:164) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.attoparser.HtmlElement.handleCloseElementEnd(HtmlElement.java:169) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
	at org.attoparser.HtmlMarkupHandler.handleCloseElementEnd(HtmlMarkupHandler.java:412) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
	at org.attoparser.MarkupEventProcessorHandler.handleCloseElementEnd(MarkupEventProcessorHandler.java:473) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
	at org.attoparser.ParsingElementMarkupUtil.parseCloseElement(ParsingElementMarkupUtil.java:201) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
	at org.attoparser.MarkupParser.parseBuffer(MarkupParser.java:725) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
	at org.attoparser.MarkupParser.parseDocument(MarkupParser.java:301) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
	at org.attoparser.MarkupParser.parse(MarkupParser.java:257) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
	at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parse(AbstractMarkupTemplateParser.java:230) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	... 44 more
Caused by: java.lang.NullPointerException
	at org.springframework.expression.spel.ast.PropertyOrFieldReference$AccessorLValue.getValue(PropertyOrFieldReference.java:384) ~[classes/:4.3.16.RELEASE]
	at org.springframework.expression.spel.ast.CompoundExpression.getValueInternal(CompoundExpression.java:88) ~[spring-expression-4.3.16.RELEASE.jar:4.3.16.RELEASE]
	at org.springframework.expression.spel.ast.SpelNodeImpl.getValue(SpelNodeImpl.java:121) ~[spring-expression-4.3.16.RELEASE.jar:4.3.16.RELEASE]
	at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:324) ~[spring-expression-4.3.16.RELEASE.jar:4.3.16.RELEASE]
	at org.thymeleaf.spring4.expression.SPELVariableExpressionEvaluator.evaluate(SPELVariableExpressionEvaluator.java:263) ~[thymeleaf-spring4-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.standard.expression.VariableExpression.executeVariableExpression(VariableExpression.java:165) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.standard.expression.SimpleExpression.executeSimple(SimpleExpression.java:66) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.standard.expression.Expression.execute(Expression.java:109) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.standard.expression.Expression.execute(Expression.java:138) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.standard.processor.AbstractStandardExpressionAttributeTagProcessor.doProcess(AbstractStandardExpressionAttributeTagProcessor.java:126) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.processor.element.AbstractAttributeTagProcessor.doProcess(AbstractAttributeTagProcessor.java:74) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.processor.element.AbstractElementTagProcessor.process(AbstractElementTagProcessor.java:95) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.util.ProcessorConfigurationUtils$ElementTagProcessorWrapper.process(ProcessorConfigurationUtils.java:633) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.ProcessorTemplateHandler.handleOpenElement(ProcessorTemplateHandler.java:1314) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.OpenElementTag.beHandled(OpenElementTag.java:205) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.Model.process(Model.java:282) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.Model.process(Model.java:290) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.IteratedGatheringModelProcessable.processIterationModel(IteratedGatheringModelProcessable.java:367) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.IteratedGatheringModelProcessable.process(IteratedGatheringModelProcessable.java:221) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.ProcessorTemplateHandler.handleCloseElement(ProcessorTemplateHandler.java:1640) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.engine.TemplateHandlerAdapterMarkupHandler.handleCloseElementEnd(TemplateHandlerAdapterMarkupHandler.java:388) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.templateparser.markup.InlinedOutputExpressionMarkupHandler$InlineMarkupAdapterPreProcessorHandler.handleCloseElementEnd(InlinedOutputExpressionMarkupHandler.java:322) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.standard.inline.OutputExpressionInlinePreProcessorHandler.handleCloseElementEnd(OutputExpressionInlinePreProcessorHandler.java:220) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.thymeleaf.templateparser.markup.InlinedOutputExpressionMarkupHandler.handleCloseElementEnd(InlinedOutputExpressionMarkupHandler.java:164) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	at org.attoparser.HtmlElement.handleCloseElementEnd(HtmlElement.java:169) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
	at org.attoparser.HtmlMarkupHandler.handleCloseElementEnd(HtmlMarkupHandler.java:412) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
	at org.attoparser.MarkupEventProcessorHandler.handleCloseElementEnd(MarkupEventProcessorHandler.java:473) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
	at org.attoparser.ParsingElementMarkupUtil.parseCloseElement(ParsingElementMarkupUtil.java:201) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
	at org.attoparser.MarkupParser.parseBuffer(MarkupParser.java:725) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
	at org.attoparser.MarkupParser.parseDocument(MarkupParser.java:301) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
	at org.attoparser.MarkupParser.parse(MarkupParser.java:257) ~[attoparser-2.0.4.RELEASE.jar:2.0.4.RELEASE]
	at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parse(AbstractMarkupTemplateParser.java:230) ~[thymeleaf-3.0.9.RELEASE.jar:3.0.9.RELEASE]
	... 44 more

resolve it in an ugly way

modify template blocks.html ，change the var name from box to box111

th:each="box, boxStat:${items}"
th:each="box111, boxStat:${items}"

what's the complete solution?
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@danielfernandez

@danielfernandez danielfernandez self-assigned this Apr 17, 2018
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I'm sorry but I'm unable to verify your issue. Your demo application is hugely complex, with dozens of apparently unneeded dependencies, some of them included from repositories that I don't necessarily trust. Also, it does not compile because the DebugController class contains a String constant larger than allowed by the Java compiler (maybe the eclipse plugin does compile it, but javac does not).

Also, your error is raised in a PropertyOrFieldReference class from Spring that you explicitly replace with your own code for reasons you don't explain. The code seems to be based on a decompiled version of the Spring .class file instead of the original source code (again, for no explained reasons), so it is too difficult for me to determine the reason for your changes or how they affect the exception being thrown.

Also, your @Controller method has a @ResponseBody annotation meant for returning payloads, but you are returning a ModelAndView specifying a view to be rendered.

I spent more than an hour removing dependencies, moving that huge String to an external file, adding code for reading that external file, invalidating your PropertyOrFieldReference implementation… and even then, when deploying the application to a Tomcat 8.5 server the /debug/index2 URL raises a 404 error, so I finally gave up. I don't have a Jetty server and that shouldn't be a factor for an issue like that to arise

Could you please provide a smaller, working test application to demonstrate this issue? Spring-Boot based would be ideal so that no additional deployment work is needed, but anyway it would be fine if it is a .war but at least it compiles, deploys and runs as expected.

@airclear
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airclear commented Apr 19, 2018 •
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@danielfernandez
sorry for waste your time,
I tried to build spring-boot application , but I can't recur the exception when I use spring-boot,
so I cut my project to a small size , and keep it can recur the exception... and that is the demo.zip

anyway, I will rebuild the demo application . see you .

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