<div dir="ltr">Hi -<br><br>  I am running Jakarta Bean Validation 6.1.2 under Apache Flink and running into the included &quot;Caused by: java.io.NotSerializableException: com.sun.el.ExpressionFactoryImpl&quot; error.<br><br>  Here are the gradle deps:<br><br>      compile &#39;org.hibernate.validator:hibernate-validator:6.1.2.Final&#39;<br>      compile &#39;org.glassfish:jakarta.el:3.0.3&#39;<br><br>  Thoughts?<br><br>  thx,<br><br>- james<br><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div>org.apache.flink.api.common.InvalidProgramException: com.sun.el.ExpressionFactoryImpl@7ca33c24 is not serializable. The object probably contains or references non serializable fields.<br>        at org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:151)<br>        at org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:126)<br>        at org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:126)<br>        at org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:126)<br>        at org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:126)<br>        at org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:71)<br>        at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.clean(StreamExecutionEnvironment.java:1821)<br>        at org.apache.flink.streaming.api.datastream.DataStream.clean(DataStream.java:188)<br>        at org.apache.flink.streaming.api.datastream.DataStream.map(DataStream.java:590)<br>        at com.lacuna.data.mds.EventProcessor.main(EventProcessor.java:49)<br>Caused by: java.io.NotSerializableException: com.sun.el.ExpressionFactoryImpl<br>        at java.base/java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1185)<br>        at java.base/java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:349)<br>WARNING: An illegal reflective access operation has occurred<br></div></div>