Hi Gustavo 

As simon says you use the java 1.6 in eclipse you go through this path :- 
window -> preference -> java -> compiler -> compiler compliance level -> 
select 1.6.

App Shilendra 

On Tuesday, 9 October 2012 14:19:24 UTC+5:30, Simon Knott wrote:
>
> Hi,
>
> You've built your project with Java 7 and GAE only supports Java 6 at this 
> time.  Rebuild your project with Java 6 and this error will go away.
>
> Cheers,
> Simon
>
> On Thursday, 4 October 2012 04:08:28 UTC+1, Gustavo Madi wrote:
>>
>>
>> you can test my application in www.iyoung.com.br
>> looking at the logs, the following error appears:
>>
>>    1. 2012-10-03 19:45:39.909 /feedback 500 240ms 0kb Mozilla/5.0 
>>    (Windows NT 6.1; WOW64; rv:15.0) Gecko/20100101 Firefox/15.0
>>    
>>    189.35.151.212 - - [03/Oct/2012:19:45:39 -0700] "POST /feedback HTTP/1.1" 
>> 500 0 "http://www.iyoung.com.br/"; "Mozilla/5.0 (Windows NT 6.1; WOW64; 
>> rv:15.0) Gecko/20100101 Firefox/15.0" "www.iyoung.com.br" ms=240 cpu_ms=346 
>> instance=00c61b117c160eb75c7b8942d37c8931cc5d4a25 
>> <https://appengine.google.com/instances?app_id=s~iyoungti&version_id=1.362204927179089827&key=00c61b117c160eb75c7b8942d37c8931cc5d4a25#00c61b117c160eb75c7b8942d37c8931cc5d4a25>
>>    
>>    2. W2012-10-03 19:45:39.905
>>    
>>    Failed startup of context 
>> com.google.apphosting.utils.jetty.RuntimeAppEngineWebAppContext@52eef4{/,/base/data/home/apps/s~iyoungti/1.362204927179089827}
>>    org.mortbay.util.MultiException[java.lang.UnsupportedClassVersionError: 
>> de/vogella/gae/feedback/FeedbackServlet : Unsupported major.minor version 
>> 51.0, java.lang.UnsupportedClassVersionError: 
>> de/vogella/gae/feedback/FeedbackServlet : Unsupported major.minor version 
>> 51.0]
>>      at 
>> org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:656)
>>      at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
>>      at 
>> org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
>>      at 
>> org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
>>      at 
>> org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
>>      at 
>> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
>>      at 
>> com.google.apphosting.runtime.jetty.AppVersionHandlerMap.createHandler(AppVersionHandlerMap.java:219)
>>      at 
>> com.google.apphosting.runtime.jetty.AppVersionHandlerMap.getHandler(AppVersionHandlerMap.java:194)
>>      at 
>> com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:134)
>>      at 
>> com.google.apphosting.runtime.JavaRuntime$RequestRunnable.run(JavaRuntime.java:447)
>>      at 
>> com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:452)
>>      at 
>> com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:459)
>>      at com.google.tracing.TraceContext.runInContext(TraceContext.java:701)
>>      at 
>> com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:336)
>>      at 
>> com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:328)
>>      at 
>> com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:456)
>>      at 
>> com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run(ThreadGroupPool.java:251)
>>      at java.lang.Thread.run(Thread.java:679)
>>    java.lang.UnsupportedClassVersionError: 
>> de/vogella/gae/feedback/FeedbackServlet : Unsupported major.minor version 
>> 51.0
>>      at 
>> com.google.appengine.runtime.Request.process-73f12ed602e38cca(Request.java)
>>      at java.lang.ClassLoader.defineClass1(Native Method)
>>      at java.lang.ClassLoader.defineClass(ClassLoader.java:634)
>>      at 
>> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
>>      at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)
>>      at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
>>      at 
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>>      at java.lang.reflect.Method.invoke(Method.java:616)
>>      at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
>>      at org.mortbay.util.Loader.loadClass(Loader.java:91)
>>      at org.mortbay.util.Loader.loadClass(Loader.java:71)
>>      at org.mortbay.jetty.servlet.Holder.doStart(Holder.java:73)
>>      at 
>> org.mortbay.jetty.servlet.ServletHolder.doStart(ServletHolder.java:242)
>>      at 
>> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
>>      at 
>> org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:685)
>>      at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
>>      at 
>> org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
>>      at 
>> org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
>>      at 
>> org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
>>      at 
>> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
>>      at 
>> com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:452)
>>      at 
>> com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:459)
>>      at com.google.tracing.TraceContext.runInContext(TraceContext.java:701)
>>      at 
>> com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:336)
>>      at 
>> com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:328)
>>      at 
>> com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:456)
>>      at java.lang.Thread.run(Thread.java:679)
>>    java.lang.UnsupportedClassVersionError: 
>> de/vogella/gae/feedback/FeedbackServlet : Unsupported major.minor version 
>> 51.0
>>      at 
>> com.google.appengine.runtime.Request.process-73f12ed602e38cca(Request.java)
>>      at java.lang.ClassLoader.defineClass1(Native Method)
>>      at java.lang.ClassLoader.defineClass(ClassLoader.java:634)
>>      at 
>> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
>>      at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)
>>      at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
>>      at 
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>>      at java.lang.reflect.Method.invoke(Method.java:616)
>>      at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
>>      at org.mortbay.util.Loader.loadClass(Loader.java:91)
>>      at org.mortbay.util.Loader.loadClass(Loader.java:71)
>>      at org.mortbay.jetty.servlet.Holder.doStart(Holder.java:73)
>>      at 
>> org.mortbay.jetty.servlet.ServletHolder.doStart(ServletHolder.java:242)
>>      at 
>> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
>>      at 
>> org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:685)
>>      at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
>>      at 
>> org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
>>      at 
>> org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
>>      at 
>> org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
>>      at 
>> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
>>      at 
>> com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:452)
>>      at 
>> com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:459)
>>      at com.google.tracing.TraceContext.runInContext(TraceContext.java:701)
>>      at 
>> com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:336)
>>      at 
>> com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:328)
>>      at 
>> com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:456)
>>      at java.lang.Thread.run(Thread.java:679)
>>    
>>    3. C2012-10-03 19:45:39.906
>>    
>>    Uncaught exception from servlet
>>    javax.servlet.UnavailableException: Initialization failed.
>>      at 
>> com.google.apphosting.runtime.jetty.AppVersionHandlerMap.createHandler(AppVersionHandlerMap.java:228)
>>      at 
>> com.google.apphosting.runtime.jetty.AppVersionHandlerMap.getHandler(AppVersionHandlerMap.java:194)
>>      at 
>> com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:134)
>>      at 
>> com.google.apphosting.runtime.JavaRuntime$RequestRunnable.run(JavaRuntime.java:447)
>>      at 
>> com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:452)
>>      at 
>> com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:459)
>>      at com.google.tracing.TraceContext.runInContext(TraceContext.java:701)
>>      at 
>> com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:336)
>>      at 
>> com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:328)
>>      at 
>> com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:456)
>>      at 
>> com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run(ThreadGroupPool.java:251)
>>      at java.lang.Thread.run(Thread.java:679)
>>    
>>    
>>

-- 
You received this message because you are subscribed to the Google Groups 
"Google App Engine" group.
To view this discussion on the web visit 
https://groups.google.com/d/msg/google-appengine/-/kTqUqx53DAQJ.
To post to this group, send email to google-appengine@googlegroups.com.
To unsubscribe from this group, send email to 
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at 
http://groups.google.com/group/google-appengine?hl=en.

Reply via email to