dinesh created SPARK-29690:
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Summary: Spark Shell - Clear imports
Key: SPARK-29690
URL: https://issues.apache.org/jira/browse/SPARK-29690
Project: Spark
Issue Type: Bug
Components: Spark Shell
Affects Versions: 2.2.0
Reporter: dinesh
I 'm facing below problem with Spark Shell. So, in a shell session -
# I imported following - {{import scala.collection.immutable.HashMap}}
# Then I realized my mistake and imported correct class - {{import
java.util.HashMap}}
But, now I get following error on running my code -
{{<console>:34: error: reference to HashMap is ambiguous;it is imported twice
in the same scope byimport java.util.HashMapand import
scala.collection.immutable.HashMapval colMap = new HashMap[String,
HashMap[String, String]]()}}
{{}}
if I have long running Spark Shell session i.e I do not want to close and
reopen my shell. So, is there a way I can clear previous imports and use
correct class?
I know that we can also specify full qualified name like - {{val colMap = new
java.util.HashMap[String, java.util.HashMap[String, String]]()}}
But, 'm looking if there is a way to clear an incorrect loaded class?
I thought spark shell picks imports from history the same way REPL does. That
said, previous HashMap should be shadowed away with new import statement.
{{}}
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