What Causes 500 Errors in Java and How Do I Investigate?

When I debug Java projects on a server in Eclipse, I get 500 errors.

I think it's a tomcat configuration or an error around DB, but I don't know why.

Environment:
Java 8
tomcat v8.5

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'XXXXXX': Unsatisfied dependency expressed through field 'XXXXXX'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'XXXXXX': Unsatisfied dependency expressed through field 'XXXXXXDao'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'XXXXXX': Injection of autowired dependencies failed; nested exception is java.lang.IllegalStateException
    org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject (AutowiredAnnotationBeanPostProcessor.java:592)
    org.springframework.beans.factory.announcement.InjectionMetadata.inject (InjectionMetadata.java:88)
    org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues (AutowiredAnnotationBeanPostProcessor.java:370)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1219)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:551)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
    org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
    org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton (DefaultSingletonBeanRegistry.java:230)
    org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
    org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
    org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSinglets (DefaultListableBeanFactory.java:754)
    org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization (AbstractApplicationContext.java:866)
    org.springframework.context.support.AbstractApplicationContext.refresh (AbstractApplicationContext.java:542)
    org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext (FrameworkServlet.java:668)
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext (FrameworkServlet.java:634)
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext (FrameworkServlet.java:682)
    org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext (FrameworkServlet.java:553)
    org.springframework.web.servlet.FrameworkServlet.initServletBean (FrameworkServlet.java:494)
    org.springframework.web.servlet.HttpServletBean.init (HttpServletBean.java:136)
    javax.servlet.genericServlet.init (GenericServlet.java:158)
    org.apache.catalina.authenticator.AuthenticatorBase.invoke (AuthenticatorBase.java:542)
    org.apache.catalina.valves.ErrorReportValve.invoke (ErrorReportValve.java:81)
    org.apache.catalina.valves.AbstractAccessLogValve.invoke (AbstractAccessLogValve.java:698)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:364)
    org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:624)
    org.apache.coyote.AbstractProcessorLight.process (AbstractProcessorLight.java:65)
    org.apache.coyote.AbstractProtocol$ConnectionHandler.process (AbstractProtocol.java:831)
    org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun (NioEndpoint.java:1673)
    org.apache.tomcat.util.net.SocketProcessorBase.run (SocketProcessorBase.java:49)
    org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1191)
    org.apache.tomcat.util.threads.ThreadPoolExecutor $Worker.run (ThreadPoolExecutor.java:659)
    org.apache.tomcat.util.threads.TaskThread$WrappingRunable.run(TaskThread.java:61)
    java.lang.Thread.run (Thread.java:748)

('XXXXXX' is hidden because it is a unique controller name)

The error in the first line is that you cannot create a bean for the controller class, so
I think it might be a spring error, but
Spring has already been added in the marketplace.

I can't figure out where to check...
Thank you for your cooperation.

java apache eclipse spring tomcat

2022-09-30 14:19

1 Answers

I changed the version of Eclipse and somehow it was resolved.
Now that it's self-resolved, I'll close it.

2022-09-30 14:19

If you have any answers or tips

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