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From twalthr <...@git.apache.org>
Subject [GitHub] flink pull request #3176: [FLINK-5571] [table] add open and close methods fo...
Date Wed, 15 Feb 2017 12:48:09 GMT
Github user twalthr commented on a diff in the pull request:

    --- Diff: flink-libraries/flink-table/src/main/scala/org/apache/flink/table/functions/UserDefinedFunction.scala
    @@ -24,4 +24,19 @@ package org.apache.flink.table.functions
       * User-defined functions must have a default constructor and must be instantiable during
     trait UserDefinedFunction {
    --- End diff --
    Did you run your code in Java 7 or Java 8? Java 8 introduces default implementation for
interfaces, but Java 7 could cause problems. I think it won't hurt if we convert it into an
`abstract class`.

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