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https://issues.apache.org/jira/browse/FELIX-4528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14025660#comment-14025660
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Rob Walker commented on FELIX-4528:
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You can, in fact that would be what we'll need to do without this.
Bottom line is though, without this, a plain/vanilla Felix will never be Web
Start able without a separate external launcher. Seems like kind of a shame if
that is the case for the sake of a 1 line change.
> Felix properties cannot be used in unsigned JNLP files
> ------------------------------------------------------
>
> Key: FELIX-4528
> URL: https://issues.apache.org/jira/browse/FELIX-4528
> Project: Felix
> Issue Type: Improvement
> Components: Framework
> Environment: java 7u45 and later
> Reporter: Rob Walker
> Assignee: Rob Walker
> Priority: Minor
> Attachments: sec_action.patch
>
>
> Unsigned JNLP files are required for most real world cases - especially those
> with dynamic deployment needs where the host URL cannot be known in advance.
> To use System properties in unsigned JNLP files they must be prefixed with
> "jnlp." - which effectively renders all current Felix properties unusable.
> Attached is a patch with one implementation approach for this - a mod to
> SecureAction to check for a "jnlp," version of a property before falling back
> to System properties or the supplied default.
> An alternative would be additional init code in Felix or FelixConstants to
> test each property that we wish to expose to JNLP files and push any non-null
> value into System properties. This would be more transparent, but also more
> maintenance whenever new FelixConstants are added.
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