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https://issues.apache.org/jira/browse/SPARK-18717?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15723694#comment-15723694
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Apache Spark commented on SPARK-18717:
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User 'aray' has created a pull request for this issue:
https://github.com/apache/spark/pull/16161
> Datasets - crash (compile exception) when mapping to immutable scala map
> ------------------------------------------------------------------------
>
> Key: SPARK-18717
> URL: https://issues.apache.org/jira/browse/SPARK-18717
> Project: Spark
> Issue Type: Bug
> Affects Versions: 2.0.2
> Reporter: Damian Momot
>
> {code}
> val spark: SparkSession = ???
> case class Test(id: String, map_test: Map[Long, String])
> spark.sql("CREATE TABLE xyz.map_test (id string, map_test map<int, string>)
> STORED AS PARQUET")
> spark.sql("SELECT * FROM xyz.map_test").as[Test].map(t => t).collect()
> {code}
> {code}
> org.codehaus.commons.compiler.CompileException: File 'generated.java', Line
> 307, Column 108: No applicable constructor/method found for actual parameters
> "java.lang.String, scala.collection.Map"; candidates are:
> "$line14.$read$$iw$$iw$Test(java.lang.String, scala.collection.immutable.Map)"
> {code}
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