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https://issues.apache.org/jira/browse/SLING-3525?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joerg Hoh closed SLING-3525.
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> Launchpad notification thread cannot access JNDI ressources on Websphere
> ------------------------------------------------------------------------
>
> Key: SLING-3525
> URL: https://issues.apache.org/jira/browse/SLING-3525
> Project: Sling
> Issue Type: Improvement
> Components: Launchpad
> Affects Versions: Launchpad Base 2.5.0
> Environment: Websphere 7 on Linux
> Reporter: Joerg Hoh
> Priority: Major
> Attachments: was_258f258f_14.04.29_03.14.01.7877107172171903438789
> copy.txt
>
>
> We have an existing JavaEnterprise-based application, which we want to move
> into sling running on IBM Websphere appserver. In some of the resulting
> bundles we need to access JNDI resources.
> We get this exception:
> {code}
> [29.04.14 03:14:01:790 CEST] FFDC
> Exception:javax.naming.ConfigurationException
> SourceId:com.ibm.ws.naming.java.javaURLContextImpl.throwConfigurationExceptionWithDefaultJavaNS
> ProbeId:440 Reporter:java.lang.Class@5ef85ef8
> javax.naming.ConfigurationException: A JNDI operation on a "java:" name
> cannot be completed because the server runtime is not able to associate the
> operation's thread with any J2EE application component. This condition can
> occur when the JNDI client using the "java:" name is not executed on the
> thread of a server application request. Make sure that a J2EE application
> does not execute JNDI operations on "java:" names within static code blocks
> or in threads created by that J2EE application. Such code does not
> necessarily run on the thread of a server application request and therefore
> is not supported by JNDI operations on "java:" names. [Root exception is
> javax.naming.NameNotFoundException: Name comp/env/tm not found in context
> "java:".]
> at
> com.ibm.ws.naming.java.javaURLContextImpl.throwConfigurationExceptionWithDefaultJavaNS(javaURLContextImpl.java:428)
>
> at
> com.ibm.ws.naming.java.javaURLContextImpl.lookup(javaURLContextImpl.java:399)
> at
> com.ibm.ws.naming.java.javaURLContextRoot.lookup(javaURLContextRoot.java:221)
> at
> com.ibm.ws.naming.java.javaURLContextRoot.lookup(javaURLContextRoot.java:161)
> at javax.naming.InitialContext.lookup(InitialContext.java:436)
> ...
> at
> org.apache.sling.launchpad.webapp.SlingServlet.startSling(SlingServlet.java:384)
>
> at
> org.apache.sling.launchpad.webapp.SlingServlet.updated(SlingServlet.java:262)
> at
> org.apache.sling.launchpad.base.impl.SlingFelix$Notifier.run(SlingFelix.java:172)
>
> at java.lang.Thread.run(Thread.java:761)
> Caused by: javax.naming.NameNotFoundException: Name comp/env/tm not found in
> context "java:".
> at
> com.ibm.ws.naming.ipbase.NameSpace.getParentCtxInternal(NameSpace.java:1837)
> at
> com.ibm.ws.naming.ipbase.NameSpace.lookupInternal(NameSpace.java:1166)
> at com.ibm.ws.naming.ipbase.NameSpace.lookup(NameSpace.java:1095)
> at
> com.ibm.ws.naming.urlbase.UrlContextImpl.lookup(UrlContextImpl.java:1235)
> at
> com.ibm.ws.naming.java.javaURLContextImpl.lookup(javaURLContextImpl.java:395)
> ... 60 more
> {code}
> According to the JavaEnterprise spec, you should not create threads on your
> own but use the mechanisms of the appserver (mostly because of the massive
> use of threadlocals to access JDNI and stuff like that). See
> http://stackoverflow.com/questions/533783/why-spawning-threads-in-java-ee-container-is-discouraged
> for some discussion of it.
> We would like the Launchpad to use a "native Websphere thread" so it can
> actually do JNDI lookups, and not to create a new thread "on the fly".
> We would like to avoid any change to the way how JNDI resources are looked up
> in our application.
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