Philip Zeyliger 635149b85f IMPALA-8016: Fix lifecycle of classloader for UDFs. ...

The ClassLoader whence a UDF was loaded needs to be kept open for
executions of the UDF, so that the UDF can load other classes from the
same jar. (A typical scenario might be a utility class.) This was
broken by the fix to IMPALA-7668.

This commit moves closing the ClassLoader to the close() function.

A test for a UDF that imports a static method from another file has been
added. Doing so failed without this change.

Change-Id: Ic02e42fb25a2754ede21fe00312a60f07e0ba8a2
Reviewed-on: http://gerrit.cloudera.org:8080/12125
Reviewed-by: Philip Zeyliger <philip@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>

2018-12-27 21:02:57 +00:00

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