[jira] [Created] (FLINK-39916) Incorrect placeholder used in MySqlDataSourceFactory exception message

["XiaodongHuan (Jira)" <ji...@apache.org>]

XiaodongHuan created FLINK-39916:
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             Summary: Incorrect placeholder used in MySqlDataSourceFactory exception message
                 Key: FLINK-39916
                 URL: https://issues.apache.org/jira/browse/FLINK-39916
             Project: Flink
          Issue Type: Bug
          Components: Flink CDC
    Affects Versions: cdc-3.5.0
            Reporter: XiaodongHuan


In MySqlDataSourceFactory, the exception message uses "{}" as a placeholder inside String.format(...).

Current code:

throw new IllegalArgumentException(
        String.format(
                "Only \"snapshot\" of MySQLDataSource StartupOption is supported in BATCH pipeline, but actual MySQLDataSource StartupOption is {}.",
                startupOptions.startupMode));

Expected:

The actual startup mode should be included in the exception message.

Suggested fix:

Replace "{}" with "%s":

File:
flink-cdc-connect/flink-cdc-pipeline-connectors/flink-cdc-pipeline-connector-mysql/src/main/java/org/apache/flink/cdc/connectors/mysql/factory/MySqlDataSourceFactory.java



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