Karl Pauls created SLING-7456:
---------------------------------
Summary: FluchCache in SlingServletResolver can throw an NPE
Key: SLING-7456
URL: https://issues.apache.org/jira/browse/SLING-7456
Project: Sling
Issue Type: Bug
Components: Servlets
Affects Versions: Servlets Resolver 2.4.22
Reporter: Karl Pauls
Fix For: Servlets Resolver 2.4.24
Given that we check for the this.cache being null everytime we reference the
cache we should probably do the same in flushCache. I can't reproduce it but
the NPE looked like this:
{noformat}
java.lang.NullPointerException: null
at
org.apache.sling.servlets.resolver.internal.SlingServletResolver.flushCache(SlingServletResolver.java:1122)
[org.apache.sling.servlets.resolver:2.4.22]
at
org.apache.sling.servlets.resolver.internal.SlingServletResolver.onChange(SlingServletResolver.java:1464)
[org.apache.sling.servlets.resolver:2.4.22]
at
org.apache.sling.resourceresolver.impl.observation.BasicObservationReporter.reportChanges(BasicObservationReporter.java:211)
[org.apache.sling.resourceresolver:1.5.34]
at
org.apache.sling.jcr.resource.internal.JcrResourceListener.onEvent(JcrResourceListener.java:155)
[org.apache.sling.jcr.resource:3.0.8]
at
org.apache.jackrabbit.commons.observation.ListenerTracker$1.onEvent(ListenerTracker.java:190)
[org.apache.jackrabbit.jackrabbit-jcr-commons:2.16.0]
at
org.apache.jackrabbit.oak.jcr.observation.ChangeProcessor.contentChanged(ChangeProcessor.java:508)
[org.apache.jackrabbit.oak-jcr:1.8.1]
at
org.apache.jackrabbit.oak.plugins.observation.FilteringDispatcher.contentChanged(FilteringDispatcher.java:53)
[org.apache.jackrabbit.oak-core:1.8.1]
at
org.apache.jackrabbit.oak.spi.commit.BackgroundObserver$1$1.call(BackgroundObserver.java:128)
[org.apache.jackrabbit.oak-store-spi:1.8.1]
at
org.apache.jackrabbit.oak.spi.commit.BackgroundObserver$1$1.call(BackgroundObserver.java:122)
[org.apache.jackrabbit.oak-store-spi:1.8.1]
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at java.base/java.lang.Thread.run(Thread.java:844)
{noformat}
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
