query.json Internal Server Error (500)
--------------------------------------
Key: SLING-2343
URL: https://issues.apache.org/jira/browse/SLING-2343
Project: Sling
Issue Type: Bug
Components: Servlets
Affects Versions: Servlets Get 2.1.2
Environment: JDK 1.6
Reporter: Róbert Csákány
I've created a node type:
<ajanlom = 'http://ajanlom.hu/ajanlom/1.0'>
<nt = 'http://www.jcp.org/jcr/nt/1.0'>
<sling = 'http://sling.apache.org/jcr/sling/1.0'>
[ajanlom:ownerOrganization] > nt:unstructured
There is several thousand nodes typed ajanlom:ownerOrganization. When I iterate
over the QueryManager results with same query it works fine.
When I type the following URL:
http://localhost:8080/content.query.json?queryType=xpath&statement=/jcr:root/partner//element(*,ajanlom:ownerOrganization)
I get the following exception:
[{
Internal Server Error (500)
The requested URL /content.query.json resulted in an error in
org.apache.sling.servlets.get.impl.JsonQueryServlet.
Exception:
java.lang.NullPointerException
at
org.apache.sling.servlets.get.impl.JsonQueryServlet.dumpResult(JsonQueryServlet.java:193)
at
org.apache.sling.servlets.get.impl.JsonQueryServlet.doGet(JsonQueryServlet.java:106)
at
org.apache.sling.api.servlets.SlingSafeMethodsServlet.mayService(SlingSafeMethodsServlet.java:268)
at
org.apache.sling.api.servlets.SlingSafeMethodsServlet.service(SlingSafeMethodsServlet.java:344)
at
org.apache.sling.api.servlets.SlingSafeMethodsServlet.service(SlingSafeMethodsServlet.java:375)
at
org.apache.sling.engine.impl.request.RequestData.service(RequestData.java:491)
at
org.apache.sling.engine.impl.SlingRequestProcessorImpl.processComponent(SlingRequestProcessorImpl.java:273)
at
org.apache.sling.engine.impl.filter.RequestSlingFilterChain.render(RequestSlingFilterChain.java:49)
at
org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:64)
at
org.apache.sling.engine.impl.debug.RequestProgressTrackerLogFilter.doFilter(RequestProgressTrackerLogFilter.java:59)
at
org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
at org.apache.sling.i18n.impl.I18NFilter.doFilter(I18NFilter.java:86)
at
org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:60)
at
org.apache.sling.engine.impl.SlingRequestProcessorImpl.processRequest(SlingRequestProcessorImpl.java:163)
at
org.apache.sling.engine.impl.SlingMainServlet.service(SlingMainServlet.java:187)
at
org.apache.felix.http.base.internal.handler.ServletHandler.doHandle(ServletHandler.java:91)
at
org.apache.felix.http.base.internal.handler.ServletHandler.handle(ServletHandler.java:77)
at
org.apache.felix.http.base.internal.dispatch.ServletPipeline.handle(ServletPipeline.java:42)
at
org.apache.felix.http.base.internal.dispatch.InvocationFilterChain.doFilter(InvocationFilterChain.java:49)
at
org.apache.felix.http.base.internal.dispatch.HttpFilterChain.doFilter(HttpFilterChain.java:33)
at
org.apache.felix.http.base.internal.dispatch.FilterPipeline.dispatch(FilterPipeline.java:48)
at
org.apache.felix.http.base.internal.dispatch.Dispatcher.dispatch(Dispatcher.java:39)
at
org.apache.felix.http.base.internal.DispatcherServlet.service(DispatcherServlet.java:55)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:390)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
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:536)
at
org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:915)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:539)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:405)
at
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
at
org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
Request Progress:
0 (2011-12-26 23:09:33) TIMER_START{Request Processing}
0 (2011-12-26 23:09:33) COMMENT timer_end format is {<elapsed
msec>,<timer name>} <optional message>
0 (2011-12-26 23:09:33) LOG Method=GET, PathInfo=/content.query.json
1 (2011-12-26 23:09:33) TIMER_START{ResourceResolution}
9 (2011-12-26 23:09:33) TIMER_END{8,ResourceResolution}
URI=/content.query.json resolves to Resource=NonExistingResource,
path=/content.query.json
9 (2011-12-26 23:09:33) LOG Resource Path Info: SlingRequestPathInfo:
path='/content.query.json', selectorString='query', extension='json',
suffix='null'
9 (2011-12-26 23:09:33) TIMER_START{ServletResolution}
9 (2011-12-26 23:09:33) TIMER_START{resolveServlet(NonExistingResource,
path=/content.query.json)}
9 (2011-12-26 23:09:33) TIMER_END{0,resolveServlet(NonExistingResource,
path=/content.query.json)} Using servlet
org.apache.sling.servlets.get.impl.JsonQueryServlet
9 (2011-12-26 23:09:33) TIMER_END{0,ServletResolution}
URI=/content.query.json handled by
Servlet=org.apache.sling.servlets.get.impl.JsonQueryServlet
9 (2011-12-26 23:09:33) LOG Applying Requestfilters
9 (2011-12-26 23:09:33) LOG Calling filter:
org.apache.sling.i18n.impl.I18NFilter
9 (2011-12-26 23:09:33) LOG Calling filter:
org.apache.sling.engine.impl.debug.RequestProgressTrackerLogFilter
9 (2011-12-26 23:09:33)
TIMER_START{org.apache.sling.servlets.get.impl.JsonQueryServlet#0}
25 (2011-12-26 23:09:34)
TIMER_END{16,org.apache.sling.servlets.get.impl.JsonQueryServlet#0}
26 (2011-12-26 23:09:34)
TIMER_START{handleError:throwable=java.lang.NullPointerException}
27 (2011-12-26 23:09:34)
TIMER_END{1,handleError:throwable=java.lang.NullPointerException} Using handler
org.apache.sling.servlets.resolver.internal.defaults.DefaultErrorHandlerServlet
28 (2011-12-26 23:09:34) TIMER_END{28,Request Processing} Dumping
SlingRequestProgressTracker Entries
ApacheSling/2.2 (Java HotSpot(TM) 64-Bit Server VM 1.6.0_29; Mac OS X 10.6.8
x86_64)
Another types work fine.
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