이번에는 org.apache.jasper.JasperException: /WEB-INF/views/home.jsp(1,63) Unable to read TLD "META-INF/c.tld" from JAR file

요것이 문제다

SEVERE: Servlet.service() for servlet jsp threw exception

org.apache.jasper.JasperException: /WEB-INF/views/home.jsp(1,63) Unable to read TLD "META-INF/c.tld" from JAR file "file:/home/yoon/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/DefenceProgramming/WEB-INF/lib/jstl-1.2.jar": org.apache.jasper.JasperException: Failed to load or instantiate TagLibraryValidator class: org.apache.taglibs.standard.tlv.JstlCoreTLV

at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)

at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)

at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:218)

at org.apache.jasper.compiler.TagLibraryInfoImpl.<init>(TagLibraryInfoImpl.java:183)

at org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:386)

at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:450)

at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1397)

at org.apache.jasper.compiler.Parser.parse(Parser.java:130)

at org.apache.jasper.compiler.ParserController.doParse(ParserController.java:255)

at org.apache.jasper.compiler.ParserController.parse(ParserController.java:103)

at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:185)

at org.apache.jasper.compiler.Compiler.compile(Compiler.java:347)

at org.apache.jasper.compiler.Compiler.compile(Compiler.java:327)

at org.apache.jasper.compiler.Compiler.compile(Compiler.java:314)

at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:592)

at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:326)

at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)

at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)

at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)

at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)

at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)

at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238)

at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:262)

at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1180)

at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:950)

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:617)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)

at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)

at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)

at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)

at java.lang.Thread.run(Thread.java:722)

에러 전체는 아니고 절반이다. 참 못쓸 maven 이다. 어쩌겠나 그래도 제대로 돌아가면 편하니

구글링을 해보니 Eclipse 에서 maven 을 사용할 때 나는 에러인 듯하다. Eclipse 에서 만드는 플러그인과 maven 에서 만드는 dependency 간에 중복으로 인한 충돌로 error가 발생하는거라 설명하면 맞으려나? 잘은 모르겠다. 아무튼 해결방법은 의외로 간단하다.

workspace 에 보면 .metadata 폴더가 있는데 그곳에 계속 내려가다보면

/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/내 프로젝트 이름/WEB-INF/lib 이 있는데 그 안에 jstl-1.2.jar 파일과 servlet-api-2.5.jar 파일이 있는데 둘다 지우면 해결된다. 아직 안해봤는데 될 것 같다.