异常：
com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Type id handling not implemented for type java.lang.Object (by serializer of type com.fasterxml.jackson.databind.ser.impl.UnsupportedTypeSerializer) (through reference chain: io.seata.rm.datasource.undo.BranchUndoLog[“sqlUndoLogs”]->java.util.ArrayList[0]->io.seata.rm.datasource.undo.SQLUndoLog[“afterImage”]->io.seata.rm.datasource.sql.struct.TableRecords[“rows”]->java.util.ArrayList[0]->io.seata.rm.datasource.sql.struct.Row[“fields”]->java.util.ArrayList[2]->io.seata.rm.datasource.sql.struct.Field[“value”])
at com.fasterxml.jackson.databind.exc.InvalidDefinitionException.from(InvalidDefinitionException.java:77)
at com.fasterxml.jackson.databind.SerializerProvider.reportBadDefinition(SerializerProvider.java:1300)
at com.fasterxml.jackson.databind.DatabindContext.reportBadDefinition(DatabindContext.java:400)
at com.fasterxml.jackson.databind.JsonSerializer.serializeWithType(JsonSerializer.java:160)
at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:730)
com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Type id handling not implemented for type java.lang.Object (by serializer of type com.fasterxml.jackson.databind.ser.impl.UnsupportedTypeSerializer) (through reference chain: io.seata.rm.datasource.undo.BranchUndoLog["sqlUndoLogs"]->java.util.ArrayList[0]->io.seata.rm.datasource.undo.SQLUndoLog["afterImage"]->io.seata.rm.datasource.sql.struct.TableRecords["rows"]->java.util.ArrayList[0]->io.seata.rm.datasource.sql.struct.Row["fields"]->java.util.ArrayList[2]->io.seata.rm.datasource.sql.struct.Field["value"])
at com.fasterxml.jackson.databind.exc.InvalidDefinitionException.from(InvalidDefinitionException.java:77)
at com.fasterxml.jackson.databind.SerializerProvider.reportBadDefinition(SerializerProvider.java:1300)
at com.fasterxml.jackson.databind.DatabindContext.reportBadDefinition(DatabindContext.java:400)
at com.fasterxml.jackson.databind.JsonSerializer.serializeWithType(JsonSerializer.java:160)
at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:730)
处理方式：
出现序列化问题可能因为部分版本bug,可以考虑升级客户端版本。
比如我本次问题seata服务器版本为1.4.2，客户端版本也是1.4.2时就会出行序列化异常
但是将客户端版本升级为1.6.1时就会正常
