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https://issues.apache.org/jira/browse/SLING-5070?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Carsten Ziegeler closed SLING-5070.
-----------------------------------
> ServletResolverCacheMBeanImpl throws NPE when cache is disabled
> ---------------------------------------------------------------
>
> Key: SLING-5070
> URL: https://issues.apache.org/jira/browse/SLING-5070
> Project: Sling
> Issue Type: Bug
> Components: Servlets
> Affects Versions: Servlets Resolver 2.3.6
> Reporter: Dirk Rudolph
> Assignee: Carsten Ziegeler
> Priority: Minor
> Fix For: Servlets Resolver 2.3.8
>
>
> When setting the cache size configuration of SlingServletResolver to a value
> < 5 the cache will be disabled and therefor the member will be null. This
> causes a NPE in the MBean. So either the MBean is able to handle this or it
> will not be registered in that case.
> {code}
> Caused by: java.lang.NullPointerException: null
> at
> org.apache.sling.servlets.resolver.internal.SlingServletResolver$ServletResolverCacheMBeanImpl.getCacheSize(SlingServletResolver.java:1383)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:497)
> at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:497)
> at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275)
> at
> com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:112)
> at
> com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:46)
> at
> com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:237)
> at
> com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:83)
> at
> com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:206)
> at javax.management.StandardMBean.getAttribute(StandardMBean.java:372)
> at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:647)
> ... 67 common frames omitted
> {code}
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