org.apache.jasper.JasperException : JSP 용 클래스를 컴파일 할 수 없습니다. 생성 된 java 파일의 [42] 라인에서 오류가 발생했습니다.

Question

jdk 1.8 with apache tomcat 8.0.12 간단한 웹을 배포하려고합니다. 응용 프로그램하지만 점점 오류가

INFO main org.apache.catalina.startup.Catalina - Initialization processed in 1622 ms 
INFO main org.apache.catalina.core.StandardService - Starting service Catalina 
INFO main org.apache.catalina.core.StandardEngine - Starting Servlet Engine: Apache Tomcat/8.0.12 
INFO tomgensoft.com-startStop-1 org.apache.catalina.startup.HostConfig - Deploying web application archive /home/tomgenso/tomcat/webapps/tomgensoft.com/ROOT.war 
ERROR tomgensoft.com-startStop-1 org.apache.catalina.startup.ContextConfig - Unable to process web resource [/WEB-INF/classes/ConnectionManager.class] for annotations 
org.apache.tomcat.util.bcel.classfile.ClassFormatException: Invalid byte tag in constant pool: 41 
    at org.apache.tomcat.util.bcel.classfile.Constant.readConstant(Constant.java:127) 
    at org.apache.tomcat.util.bcel.classfile.ConstantPool.<init>(ConstantPool.java:59) 
    at org.apache.tomcat.util.bcel.classfile.ClassParser.readConstantPool(ClassParser.java:168) 
    at org.apache.tomcat.util.bcel.classfile.ClassParser.parse(ClassParser.java:92) 
    at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:1990) 
    at org.apache.catalina.startup.ContextConfig.processAnnotationsWebResource(ContextConfig.java:1897) 
    at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1135) 
    at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:767) 
    at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:302) 
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117) 
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90) 
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5074) 
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) 
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:724) 
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:700) 
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:714) 
    at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:919) 
    at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1704) 
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
    at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
    at java.lang.Thread.run(Thread.java:745) 
INFO tomgensoft.com-startStop-1 org.apache.catalina.startup.HostConfig - Deployment of web application archive /home/tomgenso/tomcat/webapps/tomgensoft.com/ROOT.war has finished in 1,120 ms 
INFO main org.apache.catalina.startup.Catalina - Server startup in 1690 ms 
ERROR ajp-nio-127.0.0.1-9631-exec-1 org.apache.catalina.core.ContainerBase.[Catalina].[tomgensoft.com].[/].[jsp] - Servlet.service() for servlet [jsp] in context with path [] threw exception [Unable to compile class for JSP: 

An error occurred at line: [42] in the generated java file: [/home/tomgenso/tomcat/work/Catalina/tomgensoft.com/ROOT/org/apache/jsp/home_jsp.java] 
The method getDispatcherType() is undefined for the type HttpServletRequest 

Stacktrace:] with root cause 
org.apache.jasper.JasperException: Unable to compile class for JSP: 

An error occurred at line: [42] in the generated java file: [/home/tomgenso/tomcat/work/Catalina/tomgensoft.com/ROOT/org/apache/jsp/home_jsp.java] 
The method getDispatcherType() is undefined for the type HttpServletRequest 

Stacktrace: 
    at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:103) 
    at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:199) 
    at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:446) 
    at org.apache.jasper.compiler.Compiler.compile(Compiler.java:361) 
    at org.apache.jasper.compiler.Compiler.compile(Compiler.java:336) 
    at org.apache.jasper.compiler.Compiler.compile(Compiler.java:323) 
    at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:564) 
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357) 
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391) 
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:335) 
    at javax.servlet.http.HttpServlet.service 

Answer 1

The method getDispatcherType() is undefined for the type HttpServletRequest 로그 말 프로젝트에서 servet.jar 및 jsp.jar 파일을 추가하지 않은의.

및 로그에서 메이저 및 마이너 버전 오류가 발견되지 않습니다. 버전 충돌로 인해 이러한 오류가 발생하는 것은 모든 클래스 파일을 삭제 한 다음 프로젝트를 다시 빌드해야하기 때문입니다.