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From "Karl Pauls (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SLING-7241) [pipes] Nashorn ScriptEngine in PipeBindings is null
Date Thu, 16 Nov 2017 10:10:01 GMT

    [ https://issues.apache.org/jira/browse/SLING-7241?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16255053#comment-16255053
] 

Karl Pauls commented on SLING-7241:
-----------------------------------

[~bcsott], oh sorry - I see now that you are talking about using the ScriptEngineManager directly.
I was assuming this would use the sling scriptengine. [~npeltier], in that case, I agree,
while this is related to problems in SLING-7134 it will not be addressed directly. Sorry for
the noice. 

[~bcsott], I think the difference you see is due to a ThreadContextClassloader. Probably that
is set to something different in the JMX case as in the others (maybe worthwhile to figure
out what the ThreadContextClassloader is set to in each case).

> [pipes] Nashorn ScriptEngine in PipeBindings is null
> ----------------------------------------------------
>
>                 Key: SLING-7241
>                 URL: https://issues.apache.org/jira/browse/SLING-7241
>             Project: Sling
>          Issue Type: Bug
>          Components: Extensions
>    Affects Versions: Pipes 1.0.4
>         Environment: java.runtime.name = Java(TM) SE Runtime Environment
> java.runtime.version = 1.8.0_144-b01
>            Reporter: Björn Csott
>            Priority: Minor
>         Attachments: error.log
>
>
> Under some unclear circumstances the ScriptEngine in PipeBindings does not get initialized.
> There is a solution out there to attach Nashorn to the system bundle. Appart from that
I was able to fix it by using a different constructor: ScriptEngineManager(null). 
> The issue can be reproduced by deploying https://github.com/bcsott/migration-tool
> When it fails the following is written to stderror.log:
> ScriptEngineManager providers.next(): javax.script.ScriptEngineFactory:
> Provider jdk.nashorn.api.scripting.NashornScriptEngineFactory not found



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