GitHub user bbende opened a pull request:

    https://github.com/apache/nifi/pull/312

    NIFI-1697 Ensuring FlowController appropriately wraps code with NarClosable

    From debugging this issue it was noticed that the problem only occurred 
while a PutHDFS processor was enabled (running/stopepd), but if it was disabled 
the problem went away. This led to realizing that when the processor is running 
or stopped, validation is being called and was not being wrapped with 
NarCloseable to ensure the validation uses the same classpath as the component 
uses when executing.
    
    This PR ensures that the FlowController wraps validation with NarCloseable, 
and also when calling OnPrimaryNodeStateChanged which needed to be wrapped as 
well.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/bbende/nifi NIFI-1697

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/nifi/pull/312.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #312
    
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commit 605c6c88b53076034560d5faf3399c7e2b3e98fd
Author: Bryan Bende <bbe...@apache.org>
Date:   2016-03-30T15:46:52Z

    NIFI-1697 Ensuring FlowController appropriately wraps code with NarCloseable

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