[JAVA] 에러 java.lang.NoSuchMethodError 에러 메세지가 뜰 때..

회사에서 작업하다 해당 에러를 맞딱뜨렸다. 

java.lang.NoSuchMethodError 오류는 해당 메서드를 찾지 못할 때 발생한다.

3월 08, 2021 1:44:14 오후 org.apache.catalina.core.StandardWrapperValve invoke
심각: Servlet.service() for servlet [practice] in context with path [] threw exception [Handler processing failed; nested exception is java.lang.NoSuchMethodError: com.practice.service.MsgboxService.getMsgBatchHistDetail(Ljavax/servlet/http/HttpSession;Ljava/lang/Integer;Ljava/lang/String;Ljava/lang/String;)Lorg/springframework/web/servlet/ModelAndView;] with root cause
java.lang.NoSuchMethodError: com.service.MsgboxService.getMsgBatchHistDetail(Ljavax/servlet/http/HttpSession;Ljava/lang/Integer;Ljava/lang/String;Ljava/lang/String;)Lorg/springframework/web/servlet/ModelAndView;
        at com.controller.MsgboxController.getMsgBatchHistDetail(MsgboxController.java:57)
        at com.controller.MsgboxController$$FastClassByCGLIB$$e325d1f7.invoke(<generated>)
        at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
        at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:689)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
        at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:80)
        at kr.co.mirisoft.mmsgw.aop.LoginAspect.msgboxControllerCheckLoginSession(LoginAspect.java:344)
        at sun.reflect.GeneratedMethodAccessor143.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:621)
        at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:610)
        at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:65)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
        at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:90)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
        at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:622)
        at kr.co.mirisoft.mmsgw.controller.MsgboxController$$EnhancerByCGLIB$$bb7b4384.getMsgBatchHistDetail(<generated>)
        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.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:213)
        at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126)
        at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96)
        at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617)
        at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578)
        at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
        at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)
        at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
        at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
        at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:624)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
        at com.util.CrossScriptingFilter.doFilter(CrossScriptingFilter.java:30)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
        at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:615)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445)
        at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1115)
        at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1775)
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1734)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$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)

메소드를 찾지 못하는 경우는 무엇이 있을까? 해당 오류는 단순하게 생각하면 금방 해결할 수 도 있는 오류이다.

반응형

1. 메소드가 없는 경우

2. 단순 타이핑 오류
3. 매개변수가 일치하지 않는 경우
--> 이 경우에는 메소드를 수정하는 것으로 쉽게 해결이 가능하다.

 

반면 1,2,3번의 경우에도 해당하지 않는 경우
클래스, jar 정상적으로 올라가있는 지 확인, javap 명령을 이용해 메소드의 존재를 확인해보자. 

그럼에도 이상이 없다면 다음의 경우를 의심해보자.

 

4. 내부에서 참조하는 lib이 빠진 경우

5. classpath 상에서 중복되는 class가 있어 정상적으로 method를 찾지 못해서 발생

--> 중복되는 jar 파일에서 존재 확인

--> pom.xml 파일에서 dependency 부분에서 충돌이 발생되는 라이브러리 확인 

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결론 :  나의 경우는 3번의 경우였다... 이전 관리자가 넘겨준 소스와 상용에 올라간 소스의 메소드 매개변수의 차이가 있었는데 그것을 모르고 Service 단만 수정하여 Controller 단에서 문제가 생긴듯 하다. 이렇듯... 이력관리는 매우 중요하다. 지금부터라도 내가 관리하는 소스는 사내 GIT을 통해 제대로 이력 및 소스를 관리해야하겠다.