ddww opened a new issue, #5108: URL: https://github.com/apache/seatunnel/issues/5108
### Search before asking - [X] I had searched in the [issues](https://github.com/apache/seatunnel/issues?q=is%3Aissue+label%3A%22bug%22) and found no similar issues. ### What happened When I use the connector-file-ftp partition_by parameter error。 ### SeaTunnel Version 2.3.1 ### SeaTunnel Config ```conf env { job.mode = "BATCH" checkpoint.interval = 10000 } source { LocalFile { path = "xxxx" file_format_type = "text" delimiter = "\\|" result_table_name = "table_name" parallelism = 1 schema = { fields { a1 = string b2 = string } } } } transform { Sql { source_table_name = "table_name" result_table_name = "table_name_1" query = "select a1,b2 from table_name where a1 !=null and a1 !=''" } } sink { FtpFile { host = "192.168.20.102" port = 21 user = "xxxx" password = "xxxxx" path = "test/" custom_filename = "true" file_name_expression = "${now}/${uuid}" is_enable_transaction = false filename_time_format = "yyyyMMddHH" field_delimiter = "," partition_by = ["b2"] partition_dir_expression = "${k0}=${v0}" } } ``` ### Running Command ```shell cd "apache-seatunnel-incubating-${version}" ./bin/seatunnel.sh --config ./config/test.config -e local ``` ### Error Exception ```log Caused by: java.lang.UnsupportedOperationException at java.util.AbstractList.remove(AbstractList.java:161) at java.util.AbstractList$Itr.remove(AbstractList.java:374) at java.util.AbstractCollection.removeAll(AbstractCollection.java:376) ``` ### Flink or Spark Version _No response_ ### Java or Scala Version java 1.8.0 ### Screenshots _No response_ ### Are you willing to submit PR? - [X] Yes I am willing to submit a PR! ### Code of Conduct - [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
