Andrei Dulvac created SLING-3706:
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Summary: Sling Resource Resolver - NPE with oak for vanity paths
Key: SLING-3706
URL: https://issues.apache.org/jira/browse/SLING-3706
Project: Sling
Issue Type: Bug
Components: ResourceResolver
Affects Versions: Resource Resolver 1.1.2
Reporter: Andrei Dulvac
The sling resource resolver fails on OAK if you add the sling:vanityPath
property quasi-concurrently. Just add nodes and add the property in an
automated way, without wait.
I get:
{code}
23.06.2014 17:47:17.760 WARN [pool-5-thread-4] org.apache.felix.eventadmin
Service [Map Entries Observation,2923] EventAdmin: Exception during event
dispatch [org.osgi.service.event.Event
[topic=org/apache/sling/api/resource/Resource/CHANGED] |
[org.osgi.service.event.EventHandler] |
Bundle(org.apache.sling.resourceresolver [217])]
(java.lang.NullPointerException)
java.lang.NullPointerException: null
at
org.apache.sling.resourceresolver.impl.mapping.MapEntries.loadVanityPath(MapEntries.java:748)
at
org.apache.sling.resourceresolver.impl.mapping.MapEntries.doAddVanity(MapEntries.java:292)
at
org.apache.sling.resourceresolver.impl.mapping.MapEntries.doAddAttributes(MapEntries.java:209)
at
org.apache.sling.resourceresolver.impl.mapping.MapEntries.handleEvent(MapEntries.java:505)
at
org.apache.felix.eventadmin.impl.handler.EventHandlerProxy.sendEvent(EventHandlerProxy.java:412)
at
org.apache.felix.eventadmin.impl.tasks.SyncDeliverTasks.execute(SyncDeliverTasks.java:118)
at
org.apache.felix.eventadmin.impl.handler.EventAdminImpl.sendEvent(EventAdminImpl.java:114)
at
org.apache.felix.eventadmin.impl.security.EventAdminSecurityDecorator.sendEvent(EventAdminSecurityDecorator.java:96)
at
org.apache.sling.jcr.resource.internal.OakResourceListener.sendOsgiEvent(OakResourceListener.java:243)
at
org.apache.sling.jcr.resource.internal.OakResourceListener.changed(OakResourceListener.java:133)
at
org.apache.jackrabbit.oak.plugins.observation.NodeObserver$NodeEventHandler.leave(NodeObserver.java:204)
at
org.apache.jackrabbit.oak.plugins.observation.FilteredHandler.leave(FilteredHandler.java:51)
at
org.apache.jackrabbit.oak.plugins.observation.EventGenerator$Continuation.run(EventGenerator.java:154)
at
org.apache.jackrabbit.oak.plugins.observation.EventGenerator.generate(EventGenerator.java:98)
at
org.apache.jackrabbit.oak.plugins.observation.NodeObserver.contentChanged(NodeObserver.java:155)
at
org.apache.jackrabbit.oak.spi.commit.BackgroundObserver$1$1.call(BackgroundObserver.java:117)
at
org.apache.jackrabbit.oak.spi.commit.BackgroundObserver$1$1.call(BackgroundObserver.java:111)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:722)
{code}
After debugging this, the problem is that resource is null in
MapEntries.java:291 :
{code}
private void doAddVanity(String path) {
Resource resource = resolver.getResource(path);
loadVanityPath(resource, resolveMapsMap, vanityTargets);
}
{code}
Introduced by r1605423
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