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https://issues.apache.org/jira/browse/NIFI-2954?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15677004#comment-15677004
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Joseph Witt commented on NIFI-2954:
-----------------------------------

The version compatibility guidance is spelled out here: 
https://cwiki.apache.org/confluence/display/NIFI/Version+Scheme+and+API+Compatibility

It is essential to note that this does not break existing processors.  They 
will continue to work just fine.  This is a utility library that would be 
pulled into the nars/extensions themselves.  What it does mean is that when 
someone with an existing extension wants to update to a newer version of the 
nar-bundle parent, if they even use that, or if they want to use a newer 
version of nifi-processor-utils they would have to adjust to the new package 
naming.

I already updated the arcetype.

And I flagged this JIRA as release-notes relevant and will be highlighting this 
for developers purposes on the release notes.

I added comments to the poms of the relevant nifi-*-util modules to explain 
their purpose and the thinking behind dependency management for them.

That said and as commented previously when describing the plan this is the 
least intrusive way to unwind our dependency handling which got us to this 
point.

> Bouncycastle dependencies are duplicated throughout NARs
> --------------------------------------------------------
>
>                 Key: NIFI-2954
>                 URL: https://issues.apache.org/jira/browse/NIFI-2954
>             Project: Apache NiFi
>          Issue Type: Improvement
>          Components: Tools and Build
>    Affects Versions: 1.0.0
>            Reporter: Aldrin Piri
>            Assignee: Joseph Witt
>             Fix For: 1.1.0
>
>
> I was working with some of the NiFi dependencies for incorporation with/use 
> by MiNiFi and saw that several libraries were duplicated throughout all NARs.
> Of note were the bouncycastle dependencies which, together, are ~4MB in size.
> {code}
> # apiri @ computer in /usr/local/opt/nifi/libexec [17:20:23]
> $ find {lib,work} -type f -name '*bcprov-jdk15on*' | wc -l
>       54
> # apiri @ computer in /usr/local/opt/nifi/libexec [17:20:28]
> $ find {lib,work} -type f -name '*bcpkix*' | wc -l
>       53
> # apiri @ computer in /usr/local/opt/nifi/libexec [17:20:33]
> $ ls -lash 
> work/nar/framework/nifi-framework-nar-1.0.0.nar-unpacked/META-INF/bundled-dependencies/bcprov-jdk15on-1.54.jar
> 3.2M -rw-r--r-- 1 apiri admin 3.2M Oct  4 12:24 
> work/nar/framework/nifi-framework-nar-1.0.0.nar-unpacked/META-INF/bundled-dependencies/bcprov-jdk15on-1.54.jar
> # apiri @ computer in /usr/local/opt/nifi/libexec [17:20:39]
> $ ls -lash 
> work/nar/framework/nifi-framework-nar-1.0.0.nar-unpacked/META-INF/bundled-dependencies/bcpkix-jdk15on-1.54.jar
> 660K -rw-r--r-- 1 apiri admin 658K Oct  4 12:24 
> work/nar/framework/nifi-framework-nar-1.0.0.nar-unpacked/META-INF/bundled-dependencies/bcpkix-jdk15on-1.54.jar
> {code}



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