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https://issues.apache.org/jira/browse/SLING-2704?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Carsten Ziegeler reassigned SLING-2704:
---------------------------------------
Assignee: Carsten Ziegeler
> NPE in JspScriptEngineFactory in case JSP bundle restart while servicing
> request
> --------------------------------------------------------------------------------
>
> Key: SLING-2704
> URL: https://issues.apache.org/jira/browse/SLING-2704
> Project: Sling
> Issue Type: Bug
> Components: Scripting
> Affects Versions: Scripting JSP 2.0.26
> Reporter: Chetan Mehrotra
> Assignee: Carsten Ziegeler
> Priority: Minor
> Attachments: SLING-2704.patch
>
>
> If a jsp perform some operation (some admin function) which results in
> restart of various bundle then its possible that
> org.apache.sling.scripting.jsp bundle also gets restarted. Due to which
> following NPE is seen in logs. This happens because the 'jspFactoryHandler'
> in JspScriptEngineFactory becomes null by the time service call returns (due
> to component deactivation)
> A simple fix might be to create a local copy of jspFactoryHandler and use
> that (Thanks to Felix for suggesting this!!). Would attach a patch also with
> the fix
> Uncaught SlingException java.lang.NullPointerException
> at
> org.apache.sling.scripting.jsp.JspScriptEngineFactory.callJsp(JspScriptEngineFactory.java:243)
> at
> org.apache.sling.scripting.jsp.JspScriptEngineFactory.access$100(JspScriptEngineFactory.java:86)
> at
> org.apache.sling.scripting.jsp.JspScriptEngineFactory$JspScriptEngine.eval(JspScriptEngineFactory.java:441)
> at
> org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:361)
> at
> org.apache.sling.scripting.core.impl.DefaultSlingScript.eval(DefaultSlingScript.java:171)
> at
> org.apache.sling.scripting.core.impl.DefaultSlingScript.service(DefaultSlingScript.java:463)
> at
> org.apache.sling.engine.impl.request.RequestData.service(RequestData.java:508)
> at
> org.apache.sling.engine.impl.filter.SlingComponentFilterChain.render(SlingComponentFilterChain.java:45)
> at
> org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:64)
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