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https://issues.apache.org/jira/browse/SPARK-5149?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14269571#comment-14269571
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Tobias Schlatter commented on SPARK-5149:
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SPARK-1199 is a partial hack-fix for this and should be undone. However,
undoing it breaks the fix to SPARK-2632 (another hack). Therefore, we depend on
SPARK-5150 (which hopefully fixes SPARK-2632 properly)
> Type mismatch when defining classes in Spark REPL
> -------------------------------------------------
>
> Key: SPARK-5149
> URL: https://issues.apache.org/jira/browse/SPARK-5149
> Project: Spark
> Issue Type: Bug
> Reporter: Tobias Schlatter
> Assignee: Tobias Schlatter
> Priority: Critical
>
> Consider the following Spark REPL session:
> {code}
> scala> class A; def foo(x: A) = x
> defined class A
> foo: (x: A)A
> scala> foo(new A)
> <console>:14: error: type mismatch;
> found : A
> required: A
> foo(new A)
> ^
> {code}
> This happens, because of the way the Spark REPL imports previously defined
> symbols (values / types).
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