Hi,
I tried.
After successfully running the following was added to the web.xml.
<servlet>
<servlet-name>appstats</servlet-name>
<servlet-class>com.google.appengine.tools.appstats.AppstatsServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>appstats</servlet-name>
<url-pattern>/appstats/*</url-pattern>
</servlet-mapping>
<security-constraint>
<web-resource-collection>
<url-pattern>/appstats/*</url-pattern>
</web-resource-collection>
<auth-constraint>
<role-name>admin</role-name>
</auth-constraint>
</security-constraint>
<filter>
<filter-name>appstats</filter-name>
<filter-class>com.google.appengine.tools.appstats.AppstatsFilter</filter-class>
<init-param>
<param-name>logMessage</param-name>
<param-value>Appstats available:
/appstats/details?time={ID}</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>appstats</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
I think that I should confirm the environment such as jar files
when there is no difference compared with your web.xml .
please try.
thanks.
2010/3/27 George Tang <[email protected]>:
> Hey Everyone,
>
> I just downloaded the new SDK and i was excited to use app stats.
> After following the instructions to set it up, I tried testing it on
> my localdev server and I got a nullpointerexception
>
> WARNING: /appstats/stats
> java.lang.NullPointerException
> at java.io.Reader.<init>(Reader.java:61)
> at java.io.InputStreamReader.<init>(InputStreamReader.java:80)
> at
> com.google.appengine.tools.appstats.TemplateTool.loadTemplateSource(TemplateTool.java:
> 115)
> at com.google.appengine.tools.appstats.Renderer
> $1.loadTemplateSource(Renderer.java:41)
> at
> com.google.appengine.tools.appstats.TemplateTool.getTemplate(TemplateTool.java:
> 142)
> at
> com.google.appengine.tools.appstats.TemplateTool.format(TemplateTool.java:
> 100)
> at com.google.appengine.tools.appstats.Renderer
> $1.format(Renderer.java:51)
> at
> com.google.appengine.tools.appstats.Renderer.renderSummaries(Renderer.java:
> 66)
> at
> com.google.appengine.tools.appstats.AppstatsServlet.doGet(AppstatsServlet.java:
> 99)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:693)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
> at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
> 511)
> at org.mortbay.jetty.servlet.ServletHandler
> $CachedChain.doFilter(ServletHandler.java:1166)
> at
> com.google.appengine.tools.appstats.AppstatsFilter.doFilter(AppstatsFilter.java:
> 92)
> at org.mortbay.jetty.servlet.ServletHandler
> $CachedChain.doFilter(ServletHandler.java:1157)
> at
> com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:
> 51)
> at org.mortbay.jetty.servlet.ServletHandler
> $CachedChain.doFilter(ServletHandler.java:1157)
> at
> com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:
> 43)
> at org.mortbay.jetty.servlet.ServletHandler
> $CachedChain.doFilter(ServletHandler.java:1157)
> at
> com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:
> 122)
> at org.mortbay.jetty.servlet.ServletHandler
> $CachedChain.doFilter(ServletHandler.java:1157)
> at
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:
> 388)
> at
> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:
> 216)
> at
> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:
> 182)
> at
> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:
> 765)
> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
> 418)
> at
> com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:
> 70)
> at
> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
> 152)
> at com.google.appengine.tools.development.JettyContainerService
> $ApiProxyHandler.handle(JettyContainerService.java:349)
> at
> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
> 152)
> at org.mortbay.jetty.Server.handle(Server.java:326)
> at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
> 542)
> at org.mortbay.jetty.HttpConnection
> $RequestHandler.headerComplete(HttpConnection.java:923)
> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:547)
> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> at
> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:
> 409)
> at org.mortbay.thread.QueuedThreadPool
> $PoolThread.run(QueuedThreadPool.java:582)
>
> Anyone have any idea why?
>
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>
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