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Chesnay Schepler commented on FLINK-15773: ------------------------------------------ Shouldn't matter what {{DateTimeZone}} or parent classes defines; the serialization fails on the inner static {{OfYear}} class which is independent. > ClosureCleaner fails with joda DateTimeZone > ------------------------------------------- > > Key: FLINK-15773 > URL: https://issues.apache.org/jira/browse/FLINK-15773 > Project: Flink > Issue Type: Bug > Components: API / Core > Affects Versions: 1.9.1 > Reporter: Jozef Vilcek > Priority: Minor > > Flink fails to launch my Apache Beam job which uses windowing function with > time zone. Closure cleaner reports time zone as not serializable. Part of > stack trace: > > {noformat} > org.joda.time.tz.DateTimeZoneBuilder$OfYear@3b035d0c is not serializable. The > object probably contains or references non serializable fields. > > org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:151) > > org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:126) > > org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:126) > > org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:126) > > org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:126) > > org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:126) > > org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:126) > org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:71) > org.apache.flink.api.java.DataSet.clean(DataSet.java:186) > org.apache.flink.api.java.DataSet.flatMap(DataSet.java:267) > ....{noformat} > Actual instance of DateTimeZone is > [PrecalculatedZone|https://github.com/JodaOrg/joda-time/blob/v2.10.5/src/main/java/org/joda/time/tz/DateTimeZoneBuilder.java#L1373] > which itself is serializable but it's fields are not necessarily standalone > java serializable, because enclosing class it managing their serialization > and deserialization. > > -- This message was sent by Atlassian Jira (v8.3.4#803005)