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https://issues.apache.org/jira/browse/TINKERPOP-1607?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stephen mallette updated TINKERPOP-1607:
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Component/s: process
> withSack() should not be a requirement for the use of sack()
> ------------------------------------------------------------
>
> Key: TINKERPOP-1607
> URL: https://issues.apache.org/jira/browse/TINKERPOP-1607
> Project: TinkerPop
> Issue Type: Improvement
> Components: process
> Affects Versions: 3.2.3
> Reporter: Daniel Kuppitz
>
> {{withSack()}} initializes the sack value, but also adds the
> {{SackStrategy}}. Since we can do {{sack(assign)}} anywhere in the traversal,
> it's not obvious that you have to initialize the sack value upfront. However,
> if you don't do it, you end up getting NPEs (I think it's because
> {{SackStrategy}} was not added).
> In short: {{SackStrategy}} should not only be added by {{withSack()}}, but
> also whenever you add a {{SackStep}}.
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