tree 66a6f9474043dc346c31dee4f4cf89a3e4ab28b5
parent c326e5e58ac0dff1aaefd8ddb41641e87815a90f
author Ian Maxon <ian.maxon@couchbase.com> 1606268101 -0800
committer Ian Maxon <imaxon@uci.edu> 1607381857 +0000

[NO ISSUE] Check if Java UDF classes are assignable to IFunctionFactory

As of now, we instantiate whatever class is specified in an external UDF upon
invocation before checking if it can be cast to an IFunctionFactory.

This might be dangerous if some class in our classloaders contains exploitable
code in static intializers. So we should check if the class is assignable to
IFunctionFactory before attempting to instantiate it.

Change-Id: Id14581cca775b54de6f3fd8c0cf032d7c352bbbe
Reviewed-on: https://asterix-gerrit.ics.uci.edu/c/asterixdb/+/9043
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Dmitry Lychagin <dmitry.lychagin@couchbase.com>