java.lang.IllegalAccessError: tried to access class org.springframework.web.servlet.tags.form.ValueFormatter from class org.springframework.web.servlet.tags.form.ValueFormatterWrapper

[alextadams88]

Using: Spring version 4.3.20.RELEASE
Thymeleaf version 3.0.10.RELEASE

Having an issue where, in my thymeleaf template, whenever spring/thymeleaf attemps to process any th:field tags, the rendering fails and the exception java.lang.IllegalAccessError: tried to access class org.springframework.web.servlet.tags.form.ValueFormatter from class org.springframework.web.servlet.tags.form.ValueFormatterWrapper appears in the logs.

I know it is not an issue with my template and format, because if I use th:text instead of th:field, the page renders just fine. I'm not sure where else to turn - the stack trace is full of Spring and Thymeleaf code, and contains very little of my application code. And even if my application is doing something wrong, the error message does not indicate this, indicating some sort of error handling issue inside of thymeleaf/spring that is not handling my error case properly.

Stack trace excerpt:

Caused by: java.lang.IllegalAccessError: tried to access class org.springframework.web.servlet.tags.form.ValueFormatter from class org.springframework.web.servlet.tags.form.ValueFormatterWrapper at org.springframework.web.servlet.tags.form.ValueFormatterWrapper.getDisplayString(ValueFormatterWrapper.java:40) at org.thymeleaf.spring4.processor.SpringInputGeneralFieldTagProcessor.doProcess(SpringInputGeneralFieldTagProcessor.java:110) at org.thymeleaf.spring4.processor.AbstractSpringFieldTagProcessor.doProcess(AbstractSpringFieldTagProcessor.java:179) at org.thymeleaf.processor.element.AbstractAttributeTagProcessor.doProcess(AbstractAttributeTagProcessor.java:74) at org.thymeleaf.processor.element.AbstractElementTagProcessor.process(AbstractElementTagProcessor.java:95) at org.thymeleaf.util.ProcessorConfigurationUtils$ElementTagProcessorWrapper.process(ProcessorConfigurationUtils.java:633) at org.thymeleaf.engine.ProcessorTemplateHandler.handleStandaloneElement(ProcessorTemplateHandler.java:918) at org.thymeleaf.engine.StandaloneElementTag.beHandled(StandaloneElementTag.java:228) at org.thymeleaf.engine.TemplateModel.process(TemplateModel.java:136) at org.thymeleaf.engine.TemplateManager.parseAndProcess(TemplateManager.java:661) at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1098) at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1072) at org.thymeleaf.spring4.view.ThymeleafView.renderFragment(ThymeleafView.java:360) at org.thymeleaf.spring4.view.ThymeleafView.render(ThymeleafView.java:192) at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1286) at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1041) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:984) ... 49 more

Full stack trace: https://pastebin.com/07dbNv6p

Minimum Thymeleaf Template which I have used to reproduce the issue: https://pastebin.com/HqzRr1EJ

Related Spring code: https://pastebin.com/54EvUbN4