Fabian Hueske created FLINK-2936: ------------------------------------ Summary: ClassCastException when using EventTimeSourceFunction in non-EventTime program Key: FLINK-2936 URL: https://issues.apache.org/jira/browse/FLINK-2936 Project: Flink Issue Type: Improvement Components: Streaming Affects Versions: 0.10 Reporter: Fabian Hueske Fix For: 0.10
Using an {{EventTimeSourceFunction}} in a DataStream programs that does not operate with {{TimeCharacteristic.EventTime}} leads to a {{ClassCastException}} when the first {{Watermark}} is emitted: {code} Caused by: java.lang.ClassCastException: org.apache.flink.streaming.api.watermark.Watermark cannot be cast to org.apache.flink.streaming.runtime.streamrecord.StreamRecord {code} This exception is not very helpful for users that simply for got to set the correct {{TimeCharacteristic}} and should be improved. -- This message was sent by Atlassian JIRA (v6.3.4#6332)