GWTP CrawlService OfyFactory is Null

Question

Я пытаюсь использовать GWTP CrawlerService, чтобы приложение GWTP можно было сканировать поисковыми системами. Я пошел за wiki instructions, чтобы настроить его.

При доступе к службе обхода с правильными аргументами ключа и URL-адреса я получаю исключение NullPointer в строке 121 из ObjectifyDao.java beecause ofyFactory равно null.

Тем не менее, я не вижу нигде, что ofyFactory когда-либо создавался, поэтому я не уверен, как он никогда не будет пустым. Что мне не хватает?

Вот StackTrace:

java.lang.NullPointerException 
    at com.gwtplatform.crawlerservice.server.service.ObjectifyDao.ofy(ObjectifyDao.java:121) 
    at com.gwtplatform.crawlerservice.server.service.ObjectifyDao.listKeysByProperty(ObjectifyDao.java:102) 
    at com.gwtplatform.crawlerservice.server.CrawlServiceServlet.doGet(CrawlServiceServlet.java:90) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
    at com.google.inject.servlet.ServletDefinition.doService(ServletDefinition.java:263) 
    at com.google.inject.servlet.ServletDefinition.service(ServletDefinition.java:178) 
    at com.google.inject.servlet.ManagedServletPipeline.service(ManagedServletPipeline.java:91) 
    at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:62) 
    at com.pixelelephant.server.filters.EncodingFilter.doFilter(EncodingFilter.java:22) 
    at com.google.inject.servlet.FilterDefinition.doFilter(FilterDefinition.java:163) 
    at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:58) 
    at com.googlecode.objectify.cache.AsyncCacheFilter.doFilter(AsyncCacheFilter.java:59) 
    at com.googlecode.objectify.ObjectifyFilter.doFilter(ObjectifyFilter.java:49) 
    at com.google.inject.servlet.FilterDefinition.doFilter(FilterDefinition.java:163) 
    at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:58) 
    at com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:118) 
    at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:113) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.appstats.AppstatsFilter.doFilter(AppstatsFilter.java:141) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.api.socket.dev.DevSocketFilter.doFilter(DevSocketFilter.java:74) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.ResponseRewriterFilter.doFilter(ResponseRewriterFilter.java:123) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.HeaderVerificationFilter.doFilter(HeaderVerificationFilter.java:34) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:63) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:125) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.DevAppServerServersFilter.doDirectRequest(DevAppServerServersFilter.java:369) 
    at com.google.appengine.tools.development.DevAppServerServersFilter.doDirectServerRequest(DevAppServerServersFilter.java:352) 
    at com.google.appengine.tools.development.DevAppServerServersFilter.doFilter(DevAppServerServersFilter.java:115) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388) 
    at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) 
    at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) 
    at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) 
    at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418) 
    at com.google.appengine.tools.development.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:97) 
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) 
    at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:480) 
    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) 

Answer 1

Это, безусловно, ошибка в службе гусеничного и я представил патч на GitHub (https://github.com/ArcBees/GWTP/pull/299).

Следите за новостями :)