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Posted to dev@sling.apache.org by "Alexander Klimetschek (JIRA)" <ji...@apache.org> on 2008/11/10 16:25:44 UTC
[jira] Created: (SLING-725) NPE in ResourceProviderEntry
NPE in ResourceProviderEntry
----------------------------
Key: SLING-725
URL: https://issues.apache.org/jira/browse/SLING-725
Project: Sling
Issue Type: Bug
Components: JCR Resource
Reporter: Alexander Klimetschek
Priority: Minor
In o.a.s.jcr.resource.internal.helper.ResourceProviderEntry, line 137, an NPE happens when the resource object is null (getPath() is called on it). This might happen if the resource cannot be found because eg. an anonymous user does the request, who has no rights to read the node in question.
Here is the stacktrace:
10.11.2008 16:18:54.321 *INFO* [127.0.0.1 [1226330334321] GET /bin/tree/ext.json HTTP/1.1] logs/request.log 10/Nov/2008:16:18:54 +0100 [1028] -> GET /bin/tree/ext.json?_dc=1226330323421&predicate=hierarchy&depth=0&path=%2Fcontent&node=ynode-24 HTTP/1.1
10.11.2008 16:18:54.322 *ERROR* [127.0.0.1 [1226330334321] GET /bin/tree/ext.json HTTP/1.1] org.apache.sling.engine.impl.SlingMainServlet service: Uncaught Throwable java.lang.NullPointerException
at org.apache.sling.jcr.resource.internal.helper.ResourceProviderEntry$1.<init>(ResourceProviderEntry.java:137)
at org.apache.sling.jcr.resource.internal.helper.ResourceProviderEntry.listChildren(ResourceProviderEntry.java:125)
at org.apache.sling.jcr.resource.internal.JcrResourceResolver.listChildren(JcrResourceResolver.java:191)
at com.day.cq.widget.ExtTreeJsonWriter.getChildren(ExtTreeJsonWriter.java:165)
at com.day.cq.widget.ExtTreeJsonWriter.write(ExtTreeJsonWriter.java:105)
at com.day.cq.widget.ExtTreeJsonWriter.write(ExtTreeJsonWriter.java:92)
at com.day.cq.widget.servlets.ExtTreeExportServlet.doGet(ExtTreeExportServlet.java:68)
at com.day.cq.commons.servlets.AbstractPredicateServlet.doGet(AbstractPredicateServlet.java:73)
at org.apache.sling.api.servlets.SlingSafeMethodsServlet.mayService(SlingSafeMethodsServlet.java:262)
at org.apache.sling.api.servlets.SlingAllMethodsServlet.mayService(SlingAllMethodsServlet.java:134)
at org.apache.sling.api.servlets.SlingSafeMethodsServlet.service(SlingSafeMethodsServlet.java:338)
at org.apache.sling.api.servlets.SlingSafeMethodsServlet.service(SlingSafeMethodsServlet.java:370)
at org.apache.sling.engine.impl.request.RequestData.service(RequestData.java:465)
at org.apache.sling.engine.impl.filter.SlingComponentFilterChain.render(SlingComponentFilterChain.java:45)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:59)
at com.day.cq.wcm.core.impl.WCMDebugFilter.doFilter(WCMDebugFilter.java:145)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:57)
at com.day.cq.wcm.core.impl.WCMRequestFilter.filterRootInclude(WCMRequestFilter.java:292)
at com.day.cq.wcm.core.impl.WCMRequestFilter.doFilter(WCMRequestFilter.java:143)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:57)
at org.apache.sling.engine.impl.SlingMainServlet.processRequest(SlingMainServlet.java:462)
at org.apache.sling.engine.impl.filter.RequestSlingFilterChain.render(RequestSlingFilterChain.java:48)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:59)
at org.apache.sling.engine.impl.debug.RequestProgressTrackerLogFilter.doFilter(RequestProgressTrackerLogFilter.java:59)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:57)
at com.day.cq.rewriter.filter.RewriterFilter.doFilter(RewriterFilter.java:74)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:57)
at com.day.cq.theme.impl.ThemeResolverFilter.doFilter(ThemeResolverFilter.java:67)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:57)
at org.apache.sling.i18n.impl.I18NFilter.doFilter(I18NFilter.java:96)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:57)
at org.apache.sling.debug.impl.RequestProgressLogFilter.doFilter(RequestProgressLogFilter.java:45)
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:57)
at org.apache.sling.engine.impl.SlingMainServlet.service(SlingMainServlet.java:296)
at org.apache.sling.engine.impl.SlingMainServlet.service(SlingMainServlet.java:183)
at org.eclipse.equinox.http.servlet.internal.ServletRegistration.handleRequest(ServletRegistration.java:90)
at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:109)
at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:75)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.sling.launcher.webapp.SlingServlet.service(SlingServlet.java:198)
at com.day.j2ee.servletengine.ServletRuntimeEnvironment.service(ServletRuntimeEnvironment.java:228)
at com.day.j2ee.servletengine.RequestDispatcherImpl.doFilter(RequestDispatcherImpl.java:315)
at com.day.j2ee.servletengine.FilterChainImpl.doFilter(FilterChainImpl.java:74)
at com.day.crx.launchpad.filters.CRXLaunchpadLicenseFilter.doFilter(CRXLaunchpadLicenseFilter.java:101)
at com.day.j2ee.servletengine.FilterChainImpl.doFilter(FilterChainImpl.java:72)
at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:334)
at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:378)
at com.day.j2ee.servletengine.ServletHandlerImpl.execute(ServletHandlerImpl.java:313)
at com.day.j2ee.servletengine.DefaultThreadPool$DequeueThread.run(DefaultThreadPool.java:134)
at java.lang.Thread.run(Thread.java:613)
10.11.2008 16:18:54.326 *INFO* [127.0.0.1 [1226330334321] GET /bin/tree/ext.json HTTP/1.1] logs/request.log 10/Nov/2008:16:18:54 +0100 [1028] <- 500 text/html; charset=UTF-8 5ms
10.11.2008 16:18:54.328 *INFO* [127.0.0.1 [1226330334321] GET /bin/tree/ext.json HTTP/1.1] logs/access.log localhost - anonymous 10/Nov/2008:16:18:54 +0100 "GET /bin/tree/ext.json?_dc=1226330323421&predicate=hierarchy&depth=0&path=%2Fcontent&node=ynode-24 HTTP/1.1" 500 7302 "http://10.0.1.199:8081/libs/wcm/content/siteadmin.html" "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/525.19 (KHTML, like Gecko) Chrome/0.3.154.9 Safari/525.19"
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[jira] Closed: (SLING-725) NPE in ResourceProviderEntry
Posted by "Alexander Klimetschek (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/SLING-725?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alexander Klimetschek closed SLING-725.
---------------------------------------
Resolution: Invalid
Ups, passing a null Resource into ResourceResolver.listChildren() is actually not allowed (NPE thrown is part of the javadoc), thus closing this as invalid.
> NPE in ResourceProviderEntry
> ----------------------------
>
> Key: SLING-725
> URL: https://issues.apache.org/jira/browse/SLING-725
> Project: Sling
> Issue Type: Bug
> Components: JCR Resource
> Reporter: Alexander Klimetschek
> Priority: Minor
>
> In o.a.s.jcr.resource.internal.helper.ResourceProviderEntry, line 137, an NPE happens when the resource object is null (getPath() is called on it). This might happen if the resource cannot be found because eg. an anonymous user does the request, who has no rights to read the node in question.
> Here is the stacktrace:
> 10.11.2008 16:18:54.321 *INFO* [127.0.0.1 [1226330334321] GET /bin/tree/ext.json HTTP/1.1] logs/request.log 10/Nov/2008:16:18:54 +0100 [1028] -> GET /bin/tree/ext.json?_dc=1226330323421&predicate=hierarchy&depth=0&path=%2Fcontent&node=ynode-24 HTTP/1.1
> 10.11.2008 16:18:54.322 *ERROR* [127.0.0.1 [1226330334321] GET /bin/tree/ext.json HTTP/1.1] org.apache.sling.engine.impl.SlingMainServlet service: Uncaught Throwable java.lang.NullPointerException
> at org.apache.sling.jcr.resource.internal.helper.ResourceProviderEntry$1.<init>(ResourceProviderEntry.java:137)
> at org.apache.sling.jcr.resource.internal.helper.ResourceProviderEntry.listChildren(ResourceProviderEntry.java:125)
> at org.apache.sling.jcr.resource.internal.JcrResourceResolver.listChildren(JcrResourceResolver.java:191)
> at com.day.cq.widget.ExtTreeJsonWriter.getChildren(ExtTreeJsonWriter.java:165)
> at com.day.cq.widget.ExtTreeJsonWriter.write(ExtTreeJsonWriter.java:105)
> at com.day.cq.widget.ExtTreeJsonWriter.write(ExtTreeJsonWriter.java:92)
> at com.day.cq.widget.servlets.ExtTreeExportServlet.doGet(ExtTreeExportServlet.java:68)
> at com.day.cq.commons.servlets.AbstractPredicateServlet.doGet(AbstractPredicateServlet.java:73)
> at org.apache.sling.api.servlets.SlingSafeMethodsServlet.mayService(SlingSafeMethodsServlet.java:262)
> at org.apache.sling.api.servlets.SlingAllMethodsServlet.mayService(SlingAllMethodsServlet.java:134)
> at org.apache.sling.api.servlets.SlingSafeMethodsServlet.service(SlingSafeMethodsServlet.java:338)
> at org.apache.sling.api.servlets.SlingSafeMethodsServlet.service(SlingSafeMethodsServlet.java:370)
> at org.apache.sling.engine.impl.request.RequestData.service(RequestData.java:465)
> at org.apache.sling.engine.impl.filter.SlingComponentFilterChain.render(SlingComponentFilterChain.java:45)
> at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:59)
> at com.day.cq.wcm.core.impl.WCMDebugFilter.doFilter(WCMDebugFilter.java:145)
> at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:57)
> at com.day.cq.wcm.core.impl.WCMRequestFilter.filterRootInclude(WCMRequestFilter.java:292)
> at com.day.cq.wcm.core.impl.WCMRequestFilter.doFilter(WCMRequestFilter.java:143)
> at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:57)
> at org.apache.sling.engine.impl.SlingMainServlet.processRequest(SlingMainServlet.java:462)
> at org.apache.sling.engine.impl.filter.RequestSlingFilterChain.render(RequestSlingFilterChain.java:48)
> at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:59)
> at org.apache.sling.engine.impl.debug.RequestProgressTrackerLogFilter.doFilter(RequestProgressTrackerLogFilter.java:59)
> at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:57)
> at com.day.cq.rewriter.filter.RewriterFilter.doFilter(RewriterFilter.java:74)
> at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:57)
> at com.day.cq.theme.impl.ThemeResolverFilter.doFilter(ThemeResolverFilter.java:67)
> at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:57)
> at org.apache.sling.i18n.impl.I18NFilter.doFilter(I18NFilter.java:96)
> at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:57)
> at org.apache.sling.debug.impl.RequestProgressLogFilter.doFilter(RequestProgressLogFilter.java:45)
> at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:57)
> at org.apache.sling.engine.impl.SlingMainServlet.service(SlingMainServlet.java:296)
> at org.apache.sling.engine.impl.SlingMainServlet.service(SlingMainServlet.java:183)
> at org.eclipse.equinox.http.servlet.internal.ServletRegistration.handleRequest(ServletRegistration.java:90)
> at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:109)
> at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:75)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> at org.apache.sling.launcher.webapp.SlingServlet.service(SlingServlet.java:198)
> at com.day.j2ee.servletengine.ServletRuntimeEnvironment.service(ServletRuntimeEnvironment.java:228)
> at com.day.j2ee.servletengine.RequestDispatcherImpl.doFilter(RequestDispatcherImpl.java:315)
> at com.day.j2ee.servletengine.FilterChainImpl.doFilter(FilterChainImpl.java:74)
> at com.day.crx.launchpad.filters.CRXLaunchpadLicenseFilter.doFilter(CRXLaunchpadLicenseFilter.java:101)
> at com.day.j2ee.servletengine.FilterChainImpl.doFilter(FilterChainImpl.java:72)
> at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:334)
> at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:378)
> at com.day.j2ee.servletengine.ServletHandlerImpl.execute(ServletHandlerImpl.java:313)
> at com.day.j2ee.servletengine.DefaultThreadPool$DequeueThread.run(DefaultThreadPool.java:134)
> at java.lang.Thread.run(Thread.java:613)
> 10.11.2008 16:18:54.326 *INFO* [127.0.0.1 [1226330334321] GET /bin/tree/ext.json HTTP/1.1] logs/request.log 10/Nov/2008:16:18:54 +0100 [1028] <- 500 text/html; charset=UTF-8 5ms
> 10.11.2008 16:18:54.328 *INFO* [127.0.0.1 [1226330334321] GET /bin/tree/ext.json HTTP/1.1] logs/access.log localhost - anonymous 10/Nov/2008:16:18:54 +0100 "GET /bin/tree/ext.json?_dc=1226330323421&predicate=hierarchy&depth=0&path=%2Fcontent&node=ynode-24 HTTP/1.1" 500 7302 "http://10.0.1.199:8081/libs/wcm/content/siteadmin.html" "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/525.19 (KHTML, like Gecko) Chrome/0.3.154.9 Safari/525.19"
>
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