I believe the message: java.lang.UnsupportedClassVersionError: com/sun/tools/javac/Main (Unsupported major.minor version 49.0)
indicates that while running with 1.4.2, you are attempting to use a tools.jar from a JDK 1.5.x. The simplest way I know to encounter this is to install Tomcat using the exe on Windows with JAVA_HOME pointing to a JDK 1.5.x. During the installation process, tools.jar will be copied from the JDK to the common/lib directory of the installation. As long as you use this installation with 1.5 you are okay. But if you switch back to using 1.4.x, you will get this symptom because 1.4 doesn' know how to load the newer format classes in the 1.5 tools.jar. Assuming the diagnosis above is correct, how to address this depends on how you are running Tomcat. If running as a service, I think the only option is to overwrite the tools.jar in common/lib with a version from JDK 1.4.x. If running using batch scripts, and don't care about running it as a service, I believe you can delete the tools.jar in common/lib and ensure your JAVA_HOME points to a JDK. HTH. Cheers, Larry > -----Original Message----- > From: e-Denton Subscriber [mailto:[EMAIL PROTECTED] > Sent: Thursday, December 08, 2005 8:06 AM > To: 'Tomcat Users List' > Subject: UnsupportedClassVersionError > > Hi, > > > > I recently uploaded an updated Struts application to a remote > server. Now I get this message (below: > UnsupportedClassVersionError). I am using Tomcat 5.0.27. I do > have 5.5 on that system, but everything points to 5.0.27 (as > far as I can tell). I am running Java 1.4.2_01_b06. I have > the same setup on my dev machine--except Tomcat 5.5 is not on > that system--and everything works fine. > > > > Thanks for your help. > > > > (I already tried to email this under the wrong email address. > Sorry if both show up.) > > > > 2005-12-08 04:30:59 > NamingContextListener[/Catalina/localhost]: Resource > parameters for jdbc/portal = ResourceParams[name=jdbc/portal, > parameters={factory=org.apache.commons.dbcp.BasicDataSourceFactory, > maxWait=10000, maxActive=10, password=small1, > url=jdbc:mysql://127.0.0.1:3306/fortune?autoReconnect=true, > driverClassName=com.mysql.jdbc.Driver, maxIdle=5, username=fortune}] > > > > 2005-12-08 04:30:59 > NamingContextListener[/Catalina/localhost]: Adding > resource ref jdbc/portal > > > > 2005-12-08 04:30:59 NamingContextListener[/Catalina/localhost]: > ResourceRef[className=javax.sql.DataSource,factoryClassLocatio > n=null,factory > ClassName=org.apache.naming.factory.ResourceFactory,{type=scop > e,content=Shar > eable},{type=auth,content=Container},{type=factory,content=org > .apache.common > s.dbcp.BasicDataSourceFactory},{type=maxWait,content=10000},{t > ype=maxActive, > content=10},{type=password,content=small1},{type=url,content=j > dbc:mysql://12 > 7.0.0.1:3306/fortune?autoReconnect=true},{type=driverClassName > ,content=com.m > ysql.jdbc.Driver},{type=maxIdle,content=5},{type=username,cont > ent=fortune}] > > > > 2005-12-08 04:30:59 > NamingContextListener[/Catalina/localhost]: Resource > parameters for mail/Session = > ResourceParams[name=mail/Session, > parameters={mail.smtp.host=mars.webappcabaret.net}] > > > > 2005-12-08 04:30:59 > NamingContextListener[/Catalina/localhost]: Adding > resource ref mail/Session > > > > 2005-12-08 04:30:59 NamingContextListener[/Catalina/localhost]: > ResourceRef[className=javax.mail.Session,factoryClassLocation= > null,factoryCl > assName=org.apache.naming.factory.ResourceFactory,{type=scope, > content=Sharea > ble},{type=auth,content=Container},{type=mail.smtp.host,conten > t=mars.webappc > abaret.net}] > > > > 2005-12-08 04:30:59 > NamingContextListener[/Catalina/localhost]: Resource > parameters for UserTransaction = null > > > > 2005-12-08 04:32:43 StandardWrapperValve[jsp]: > Servlet.service() for servlet jsp threw exception > > > > java.lang.UnsupportedClassVersionError: > com/sun/tools/javac/Main (Unsupported major.minor version 49.0) > > > > at java.lang.ClassLoader.defineClass0(Native Method) > > > > at java.lang.ClassLoader.defineClass(ClassLoader.java:537) > > > > at > java.security.SecureClassLoader.defineClass(SecureClassLoader. > java:123) > > > > at java.net.URLClassLoader.defineClass(URLClassLoader.java:251) > > > > at java.net.URLClassLoader.access$100(URLClassLoader.java:55) > > > > at java.net.URLClassLoader$1.run(URLClassLoader.java:194) > > > > at java.security.AccessController.doPrivileged(Native Method) > > > > at java.net.URLClassLoader.findClass(URLClassLoader.java:187) > > > > at java.lang.ClassLoader.loadClass(ClassLoader.java:289) > > > > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:274) > > > > at java.lang.ClassLoader.loadClass(ClassLoader.java:235) > > > > at > org.apache.catalina.loader.StandardClassLoader.loadClass(Stand > ardClassLoader > .java:803) > > > > at > org.apache.catalina.loader.StandardClassLoader.loadClass(Stand > ardClassLoader > .java:721) > > > > at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302) > > > > at java.lang.Class.forName0(Native Method) > > > > at java.lang.Class.forName(Class.java:141) > > > > at > org.apache.tools.ant.taskdefs.compilers.CompilerAdapterFactory > .doesModernCom > pilerExist(CompilerAdapterFactory.java:140) > > > > at > org.apache.tools.ant.taskdefs.compilers.CompilerAdapterFactory > .getCompiler(C > ompilerAdapterFactory.java:98) > > > > at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:935) > > > > at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:764) > > > > at > org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:382) > > > > at > org.apache.jasper.compiler.Compiler.compile(Compiler.java:472) > > > > at > org.apache.jasper.compiler.Compiler.compile(Compiler.java:451) > > > > at > org.apache.jasper.compiler.Compiler.compile(Compiler.java:439) > > > > at > org.apache.jasper.JspCompilationContext.compile(JspCompilation > Context.java:5 > 11) > > > > at > org.apache.jasper.servlet.JspServletWrapper.service(JspServlet > Wrapper.java:2 > 95) > > > > 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.internalDoFilt > er(Application > FilterChain.java:237) > > > > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(Appli > cationFilterCh > ain.java:157) > > > > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardW > rapperValve.ja > va:214) > > > > at > org.apache.catalina.core.StandardValveContext.invokeNext(Stand > ardValveContex > t.java:104) > > > > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel > ine.java:520) > > > > at > org.apache.catalina.core.StandardContextValve.invokeInternal(S > tandardContext > Valve.java:198) > > > > at > org.apache.catalina.core.StandardContextValve.invoke(StandardC > ontextValve.ja > va:152) > > > > at > org.apache.catalina.core.StandardValveContext.invokeNext(Stand > ardValveContex > t.java:104) > > > > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel > ine.java:520) > > > > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHost > Valve.java:137 > ) > > > > at > org.apache.catalina.core.StandardValveContext.invokeNext(Stand > ardValveContex > t.java:104) > > > > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReport > Valve.java:117 > ) > > > > at > org.apache.catalina.core.StandardValveContext.invokeNext(Stand > ardValveContex > t.java:102) > > > > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel > ine.java:520) > > > > at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEn > gineValve.java > :109) > > > > at > org.apache.catalina.core.StandardValveContext.invokeNext(Stand > ardValveContex > t.java:104) > > > > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel > ine.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.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:300) > > > > at > org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:374) > > > > at > org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:743) > > > > at > org.apache.jk.common.ChannelSocket.processConnection(ChannelSo > cket.java:675) > > > > at > org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:866) > > > > at > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run( > ThreadPool.jav > a:683) > > > > at java.lang.Thread.run(Thread.java:534) > > > > > > > > > > > > > > > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
