Hi, If you compile your classes with J2SE 5.0 (class version 49.0), you can't run them on JDK 1.4.2 (class version 48.0). Either match up the compile- and run-time JDK version, or compile with a -target switch to match the older JDK.
Yoav Shapira http://www.yoavshapira.com >-----Original Message----- >From: Wei Wei [mailto:[EMAIL PROTECTED] >Sent: Thursday, November 04, 2004 2:32 PM >To: [EMAIL PROTECTED] >Subject: "wrong version 49.0" > >After installed 5.0.29 TC, I tried to bring up the new application I just >start today. I get the following error message. Can some tell me what is >wrong here. > >2004-11-04 10:42:39 StandardWrapperValve[jsp]: Servlet.service() for >servlet jsp threw exception >org.apache.jasper.JasperException: Unable to compile class for JSP > >Generated servlet error: >C:\Program Files\Apache Software Foundation\Tomcat >5.0\work\Catalina\localhost\gallery\org\apache\jsp\index_jsp.java:7: cannot >access java.lang.Object > > >Generated servlet error: >bad class file: C:\Program >Files\Java\jre1.5.0\lib\rt.jar(java/lang/Object.class) >class file has wrong version 49.0, should be 48.0 >Please remove or make sure it appears in the correct subdirectory of the >classpath. >public final class index_jsp extends org.apache.jasper.runtime.HttpJspBase > ^ >1 error > > > > at >org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorH andl >er.java:84) > at >org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.j ava: >332) > at >org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:432) > at org.apache.jasper.compiler.Compiler.compile(Compiler.java:492) > at org.apache.jasper.compiler.Compiler.compile(Compiler.java:471) > at org.apache.jasper.compiler.Compiler.compile(Compiler.java:459) > at >org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.j ava: >511) > at >org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.j ava: >295) > at >org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292 ) > at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) > at >org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applic atio >nFilterChain.java:237) > at >org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFil terC >hain.java:157) > at >org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperVal ve.j >ava:214) > at >org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveC onte >xt.java:104) > at >org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java: 520) > at >org.apache.catalina.core.StandardContextValve.invokeInternal(StandardCo ntex >tValve.java:198) > at >org.apache.catalina.core.StandardContextValve.invoke(StandardContextVal ve.j >ava:152) > at >org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveC onte >xt.java:104) > at >org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java: 520) > at >org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.jav a:13 >7) > at >org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveC onte >xt.java:104) > at >org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.jav a:11 >8) > at >org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveC onte >xt.java:102) > at >org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java: 520) > at >org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve .jav >a:109) > at >org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveC onte >xt.java:104) > at >org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java: 520) > at >org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929) > at >org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160) > at >org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:7 99) > at >org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process Conn >ection(Http11Protocol.java:705) > at >org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:5 77) > at >org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPoo l.ja >va:684) > at java.lang.Thread.run(Unknown Source) > >2004-11-04 10:44:25 StandardWrapperValve[jsp]: Servlet.service() for >servlet jsp threw exception >org.apache.jasper.JasperException: Unable to compile class for JSP > >Generated servlet error: >C:\Program Files\Apache Software Foundation\Tomcat >5.0\work\Catalina\localhost\gallery\org\apache\jsp\index_jsp.java:7: cannot >access java.lang.Object > > >Generated servlet error: >bad class file: C:\Program >Files\Java\jre1.5.0\lib\rt.jar(java/lang/Object.class) >class file has wrong version 49.0, should be 48.0 >Please remove or make sure it appears in the correct subdirectory of the >classpath. >public final class index_jsp extends org.apache.jasper.runtime.HttpJspBase > ^ >1 error > > > > at >org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorH andl >er.java:84) > at >org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.j ava: >332) > at >org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:432) > at org.apache.jasper.compiler.Compiler.compile(Compiler.java:492) > at org.apache.jasper.compiler.Compiler.compile(Compiler.java:471) > at org.apache.jasper.compiler.Compiler.compile(Compiler.java:459) > at >org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.j ava: >511) > at >org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.j ava: >295) > at >org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292 ) > at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) > at >org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applic atio >nFilterChain.java:237) > at >org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFil terC >hain.java:157) > at >org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperVal ve.j >ava:214) > at >org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveC onte >xt.java:104) > at >org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java: 520) > at >org.apache.catalina.core.StandardContextValve.invokeInternal(StandardCo ntex >tValve.java:198) > at >org.apache.catalina.core.StandardContextValve.invoke(StandardContextVal ve.j >ava:152) > at >org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveC onte >xt.java:104) > at >org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java: 520) > at >org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.jav a:13 >7) > at >org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveC onte >xt.java:104) > at >org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.jav a:11 >8) > at >org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveC onte >xt.java:102) > at >org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java: 520) > at >org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve .jav >a:109) > at >org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveC onte >xt.java:104) > at >org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java: 520) > at >org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929) > at >org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160) > at >org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:7 99) > at >org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process Conn >ection(Http11Protocol.java:705) > at >org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:5 77) > at >org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPoo l.ja >va:684) > at java.lang.Thread.run(Unknown Source) >-- >_______________________________________________ >Find what you are looking for with the Lycos Yellow Pages >http://r.lycos.com/r/yp_emailfooter/http://yellowpages.lycos.com/defaul t.as >p?SRC=lycos10 > > >--------------------------------------------------------------------- >To unsubscribe, e-mail: [EMAIL PROTECTED] >For additional commands, e-mail: [EMAIL PROTECTED] This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, 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