flinkCDC同步oracle报错

问题遇到的现象和发生背景

在测试flink-CDC 同步oracle 遇到报错，不知道是什么原因
报错如下

用代码块功能插入代码，请勿粘贴截图

Exception in thread "main" org.apache.flink.api.common.InvalidProgramException: com.ververica.cdc.connectors.oracle.OracleValidator@ea1a8d5 is not serializable. The object probably contains or references non serializable fields.
at org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:164)
at org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:132)
at org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:69)
at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.clean(StreamExecutionEnvironment.java:2053)
at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.addSource(StreamExecutionEnvironment.java:1737)
at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.addSource(StreamExecutionEnvironment.java:1720)
at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.addSource(StreamExecutionEnvironment.java:1689)
at org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.addSource(StreamExecutionEnvironment.java:1675)
at com.wujie.CDC.OracleCDCTest.main(OracleCDCTest.java:77)
Caused by: java.io.NotSerializableException: com.ververica.cdc.connectors.oracle.OracleValidator

程序代码

StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
        env.setParallelism(1);
        Properties pros = new Properties();
        pros.setProperty("debezium.log.mining.strategy", "online_catalog");
        pros.setProperty("debezium.log.mining.continuous.mine", "true");
        DebeziumSourceFunction sourceFunction = OracleSource.builder()
                .hostname("172.22.5.151")
                .port(1521)
                .database("helowin")
                .schemaList("ZHOU")
                .tableList("ZHOU.STUDENT_INFO")
                .username("ZHOU")
                .password("123456")
                .debeziumProperties(pros)
                .deserializer(new CustomDebeziumDeserializationSchema())
                .startupOptions(StartupOptions.initial())
                .build();
     
        // 数据源
        DataStreamSource source = env.addSource(sourceFunction);
        source.print();
        env.execute("flink cdc");