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https://issues.apache.org/jira/browse/TWILL-215?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15858607#comment-15858607
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Martin Serrano commented on TWILL-215:
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The details got pretty messy. I still think a github diff/pr is the best way
to discuss. Should I just submit a PR?
> Dependencies not on classpath lead to runtime startup error
> -----------------------------------------------------------
>
> Key: TWILL-215
> URL: https://issues.apache.org/jira/browse/TWILL-215
> Project: Apache Twill
> Issue Type: Bug
> Components: core
> Affects Versions: 0.9.0
> Reporter: Martin Serrano
> Priority: Critical
> Fix For: 0.10.0
>
>
> We do not use logback in our environment but it is a dependency of
> {{ApplicationMasterMain}}. When {{YarnTwillPreparer.createTwillJar}} is
> called in our environment, the logback jar is not on our classpath. For a
> class not in the classpath, the {{Dependencies.findClassDependencies}} method
> ignores it. This leads to a runtime startup error when the app master tries
> to start.
> This is easily fixed unless there some use case for ignoring the dependency
> when it is not on the classpath. An exception should be thrown and no yarn
> job should be submitted.
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