한참을 삽질했습니다. 구글링을 해보니 mac의 jdk와 호환이 되지 않아서 발생하는 문제라고 합니다.
역시나 윈도우 가상머신에 GAE 개발환경 갖추고 실행하니 같은 소스가 잘 동작합니다.
다음은 앱엔진 로그에 나타나는 메시지입니다.
2013-10-15 16:22:29.386 / 500 5066ms 0kb Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_5) AppleWebKit/536.30.1 (KHTML, like Gecko) Version/6.0.5 Safari/536.30.1
210.98.50.4 - - [15/Oct/2013:16:22:29 -0700] "GET / HTTP/1.1" 500 0 - "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_5) AppleWebKit/536.30.1 (KHTML, like Gecko) Version/6.0.5 Safari/536.30.1" "1.okgawi.appspot.com" ms=5067 cpu_ms=2567 loading_request=1 app_engine_release=1.8.6 instance=00c61b117cc605edbcad33f6d430edbd601896
W2013-10-15 16:22:29.299
EXCEPTION java.lang.IllegalArgumentException at com.google.appengine.runtime.Request.process-3c18ce8f0ef50d07(Request.java) at java.lang.ClassLoader.loadClass(ClassLoader.java:360) 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$TraceContextRunnable.runInContext(TraceContext.java:435) at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:442) at com.google.tracing.CurrentContext.runInContext(CurrentContext.java:186) at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:306) at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:298) at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:439) at java.lang.Thread.run(Thread.java:724)
E2013-10-15 16:22:29.376
javax.servlet.ServletContext log: unavailable javax.servlet.UnavailableException at org.mortbay.jetty.servlet.Holder.doStart(Holder.java:79) 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.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$RequestRunnable.run(JavaRuntime.java:446) at com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:435) at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:442) at com.google.tracing.CurrentContext.runInContext(CurrentContext.java:186) at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:306) at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:298) at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:439) at com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run(ThreadGroupPool.java:251) at java.lang.Thread.run(Thread.java:724)
W2013-10-15 16:22:29.380
Failed startup of context com.google.apphosting.utils.jetty.RuntimeAppEngineWebAppContext@1d9525e{/,/base/data/home/apps/s~okgawi/1.370945407503011368} java.lang.NullPointerException at java.lang.Class.isAssignableFrom(Native Method) at org.mortbay.jetty.servlet.ServletHolder.doStart(ServletHolder.java:256) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:685) at org.mortbay.jetty.servlet.Context.startContext(Context.java:140) at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250) at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517) at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.createHandler(AppVersionHandlerMap.java:219) at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.getHandler(AppVersionHandlerMap.java:194) at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:134) at com.google.apphosting.runtime.JavaRuntime$RequestRunnable.run(JavaRuntime.java:446) at com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:435) at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:442) at com.google.tracing.CurrentContext.runInContext(CurrentContext.java:186) at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:306) at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:298) at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:439) at com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run(ThreadGroupPool.java:251) at java.lang.Thread.run(Thread.java:724)
쉬운 게 없군요.
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