[ 
https://issues.apache.org/jira/browse/SLING-12253?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Joerg Hoh updated SLING-12253:
------------------------------
    Description: 
{noformat}
[[::1] [1705550745690] GET /content/foobar.html HTTP/1.1] 
org.apache.sling.engine.impl.SlingRequestProcessorImpl service: Uncaught 
Throwable
java.util.ConcurrentModificationException: null
        at 
java.base/java.util.ArrayList$Itr.checkForComodification(ArrayList.java:1043)
        at java.base/java.util.ArrayList$Itr.next(ArrayList.java:997)
        at 
org.apache.sling.servlets.resolver.internal.helper.ResourceCollector.getWeightedResources(ResourceCollector.java:232)
 [org.apache.sling.servlets.resolver:2.9.14]
        at 
org.apache.sling.servlets.resolver.internal.helper.AbstractResourceCollector.lambda$getServlets$1(AbstractResourceCollector.java:117)
 [org.apache.sling.servlets.resolver:2.9.14]
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
        at 
org.apache.sling.servlets.resolver.internal.helper.AbstractResourceCollector.getServlets(AbstractResourceCollector.java:117)
 [org.apache.sling.servlets.resolver:2.9.14]
        at 
org.apache.sling.servlets.resolver.internal.SlingServletResolver.getServletInternal(SlingServletResolver.java:528)
 [org.apache.sling.servlets.resolver:2.9.14]
        at 
org.apache.sling.servlets.resolver.internal.SlingServletResolver.resolveServletInternal(SlingServletResolver.java:489)
 [org.apache.sling.servlets.resolver:2.9.14]
...
{noformat}

  was:

{noformat}
org.apache.sling.engine.impl.SlingRequestProcessorImpl service: Uncaught 
Throwable
java.util.ConcurrentModificationException: null
        at 
java.base/java.util.ArrayList$Itr.checkForComodification(ArrayList.java:1043)
        at java.base/java.util.ArrayList$Itr.next(ArrayList.java:997)
        at 
org.apache.sling.servlets.resolver.internal.helper.ResourceCollector.getWeightedResources(ResourceCollector.java:232)
 [org.apache.sling.servlets.resolver:2.9.14]
        at 
org.apache.sling.servlets.resolver.internal.helper.AbstractResourceCollector.lambda$getServlets$1(AbstractResourceCollector.java:117)
 [org.apache.sling.servlets.resolver:2.9.14]
        at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
        at 
org.apache.sling.servlets.resolver.internal.helper.AbstractResourceCollector.getServlets(AbstractResourceCollector.java:117)
 [org.apache.sling.servlets.resolver:2.9.14]
        at 
org.apache.sling.servlets.resolver.internal.SlingServletResolver.getServletInternal(SlingServletResolver.java:528)
 [org.apache.sling.servlets.resolver:2.9.14]
        at 
org.apache.sling.servlets.resolver.internal.SlingServletResolver.resolveServletInternal(SlingServletResolver.java:489)
 [org.apache.sling.servlets.resolver:2.9.14]
...
{noformat}


> ConcurrentModificationException in AbstractResourceCollector
> ------------------------------------------------------------
>
>                 Key: SLING-12253
>                 URL: https://issues.apache.org/jira/browse/SLING-12253
>             Project: Sling
>          Issue Type: Task
>    Affects Versions: Servlets Resolver 2.9.14
>            Reporter: Joerg Hoh
>            Priority: Major
>
> {noformat}
> [[::1] [1705550745690] GET /content/foobar.html HTTP/1.1] 
> org.apache.sling.engine.impl.SlingRequestProcessorImpl service: Uncaught 
> Throwable
> java.util.ConcurrentModificationException: null
>       at 
> java.base/java.util.ArrayList$Itr.checkForComodification(ArrayList.java:1043)
>       at java.base/java.util.ArrayList$Itr.next(ArrayList.java:997)
>       at 
> org.apache.sling.servlets.resolver.internal.helper.ResourceCollector.getWeightedResources(ResourceCollector.java:232)
>  [org.apache.sling.servlets.resolver:2.9.14]
>       at 
> org.apache.sling.servlets.resolver.internal.helper.AbstractResourceCollector.lambda$getServlets$1(AbstractResourceCollector.java:117)
>  [org.apache.sling.servlets.resolver:2.9.14]
>       at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
>       at 
> org.apache.sling.servlets.resolver.internal.helper.AbstractResourceCollector.getServlets(AbstractResourceCollector.java:117)
>  [org.apache.sling.servlets.resolver:2.9.14]
>       at 
> org.apache.sling.servlets.resolver.internal.SlingServletResolver.getServletInternal(SlingServletResolver.java:528)
>  [org.apache.sling.servlets.resolver:2.9.14]
>       at 
> org.apache.sling.servlets.resolver.internal.SlingServletResolver.resolveServletInternal(SlingServletResolver.java:489)
>  [org.apache.sling.servlets.resolver:2.9.14]
> ...
> {noformat}



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