Also, check your compiler compliance level. Eclipse does not use javac from the JDK you are using; it uses its own compiler, and it will compile for a particular version of the JDK depending on your compiler compliance settings. They can be found under Preferences --> Java --> Compiler.
On Thu, Jul 23, 2009 at 10:53 PM, Kamal Chandana Mettananda < [email protected]> wrote: > Hi Norman, > > As John said this is due to a incompatible versions. You can have a look at > the following for some more explanation. > > > http://lkamal.blogspot.com/2008/04/javalangunsupportedclassversionerror.html > > HTH, > Kamal > > --------------------------------------- > Kamal Mettananda > > > > > On Thu, Jul 23, 2009 at 10:22 PM, John Ivens > <[email protected]>wrote: > >> I got this when I mixed classes compiled in one version with another. >> Beware of server side implementations compiled under one version and hosted >> in your application server mixed with classes compiled in the other version, >> possible other libraries someone else made? >> >> >> On Thu, Jul 23, 2009 at 9:47 AM, Norman Maurer <[email protected]> wrote: >> >>> >>> Hi all, >>> >>> after starting eclipse today on my mac and trying to start my >>> application in hosted mode I get the following stacktrace. I already >>> checked that the java version is set to 1.5. I'm using gwt-1.7.0. The >>> same project work without any problem on my windows xp box. Any idea ? >>> >>> Here is the stacktrace: >>> >>> [WARN] failed >>> com.google.gwt.dev.shell.jetty.jettylauncher$webappcontextwithrel...@b60063 >>> {/,/Users/norman/Documents/workspace/Hupa/war} >>> java.lang.UnsupportedClassVersionError: Bad version number in .class file >>> at java.lang.ClassLoader.defineClass1(Native Method) >>> at java.lang.ClassLoader.defineClass(ClassLoader.java:675) >>> at >>> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) >>> at java.net.URLClassLoader.defineClass(URLClassLoader.java:260) >>> at java.net.URLClassLoader.access$100(URLClassLoader.java:56) >>> at java.net.URLClassLoader$1.run(URLClassLoader.java:195) >>> at java.security.AccessController.doPrivileged(Native Method) >>> at java.net.URLClassLoader.findClass(URLClassLoader.java:188) >>> at >>> com.google.gwt.dev.shell.jetty.JettyLauncher$WebAppContextWithReload$WebAppClassLoaderExtension.findClass(JettyLauncher.java:356) >>> at >>> org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:366) >>> at >>> org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:337) >>> at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:374) >>> at java.lang.ClassLoader.defineClass1(Native Method) >>> at java.lang.ClassLoader.defineClass(ClassLoader.java:675) >>> at >>> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) >>> at java.net.URLClassLoader.defineClass(URLClassLoader.java:260) >>> at java.net.URLClassLoader.access$100(URLClassLoader.java:56) >>> at java.net.URLClassLoader$1.run(URLClassLoader.java:195) >>> at java.security.AccessController.doPrivileged(Native Method) >>> at java.net.URLClassLoader.findClass(URLClassLoader.java:188) >>> at >>> com.google.gwt.dev.shell.jetty.JettyLauncher$WebAppContextWithReload$WebAppClassLoaderExtension.findClass(JettyLauncher.java:334) >>> at >>> org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:366) >>> at >>> org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:337) >>> at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:374) >>> at >>> org.apache.hupa.server.guice.ServerModul.configureHandlers(ServerModul.java:62) >>> at >>> net.customware.gwt.dispatch.server.guice.ActionHandlerModule.configure(ActionHandlerModule.java:38) >>> at >>> com.google.inject.AbstractModule.configure(AbstractModule.java:59) >>> at >>> com.google.inject.spi.Elements$RecordingBinder.install(Elements.java:223) >>> at com.google.inject.spi.Elements.getElements(Elements.java:101) >>> at >>> com.google.inject.InjectorShell$Builder.build(InjectorShell.java:135) >>> at >>> com.google.inject.InjectorBuilder.build(InjectorBuilder.java:102) >>> at com.google.inject.Guice.createInjector(Guice.java:92) >>> at com.google.inject.Guice.createInjector(Guice.java:69) >>> at com.google.inject.Guice.createInjector(Guice.java:59) >>> at >>> org.apache.hupa.server.guice.MyGuiceServletConfig.getInjector(MyGuiceServletConfig.java:37) >>> at >>> com.google.inject.servlet.GuiceServletContextListener.contextInitialized(GuiceServletContextListener.java:43) >>> at >>> org.mortbay.jetty.handler.ContextHandler.startContext(ContextHandler.java:543) >>> at >>> org.mortbay.jetty.servlet.Context.startContext(Context.java:136) >>> at >>> org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1220) >>> at >>> org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:513) >>> at >>> org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:448) >>> at >>> com.google.gwt.dev.shell.jetty.JettyLauncher$WebAppContextWithReload.doStart(JettyLauncher.java:427) >>> at >>> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:39) >>> at >>> org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130) >>> at >>> org.mortbay.jetty.handler.RequestLogHandler.doStart(RequestLogHandler.java:115) >>> at >>> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:39) >>> at >>> org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130) >>> at org.mortbay.jetty.Server.doStart(Server.java:222) >>> at >>> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:39) >>> at >>> com.google.gwt.dev.shell.jetty.JettyLauncher.start(JettyLauncher.java:491) >>> at >>> com.google.gwt.dev.HostedMode.doStartUpServer(HostedMode.java:365) >>> at >>> com.google.gwt.dev.HostedModeBase.startUp(HostedModeBase.java:590) >>> at com.google.gwt.dev.HostedModeBase.run(HostedModeBase.java:397) >>> at com.google.gwt.dev.HostedMode.main(HostedMode.java:232) >>> >>> >>> >> >> >> > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. 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