apache/flink · error · UnsupportedOperationException

Unsupported extractor kind: %s

Error message

Unsupported extractor kind: %s

What it means

Error "Unsupported extractor kind: %s" thrown in apache/flink.

Source

Thrown at flink-connectors/flink-connector-files/src/main/java/org/apache/flink/connector/file/table/PartitionTimeExtractor.java:57

            String extractorKind,
            String extractorClass,
            String extractorPattern,
            String formatterPattern) {
        switch (extractorKind) {
            case DEFAULT:
                return new DefaultPartTimeExtractor(extractorPattern, formatterPattern);
            case CUSTOM:
                try {
                    return (PartitionTimeExtractor)
                            userClassLoader.loadClass(extractorClass).newInstance();
                } catch (ClassNotFoundException
                        | IllegalAccessException
                        | InstantiationException e) {
                    throw new RuntimeException(
                            "Can not new instance for custom class from " + extractorClass, e);
                }
            default:
                throw new UnsupportedOperationException(
                        "Unsupported extractor kind: " + extractorKind);
        }
    }
}

View on GitHub (pinned to 2f3c205e92)

Solutions

1. Address the cause reported by the error message: Unsupported extractor kind: the reported value
2. Verify the inputs, configuration values, and classpath/dependency setup related to this operation, then retry.

Example fix

Correct the condition described ("Unsupported extractor kind: the reported value") and rerun the job or command.

When it happens

Trigger: Triggered at runtime when the operation fails because: Unsupported extractor kind: the reported value.

Common situations: Commonly caused by misconfiguration, missing dependencies or files, unsupported types or operations, or invalid user input leading to: Unsupported extractor kind: the reported value.

AI-assisted analysis of apache/flink@2f3c205e92 (2026-08-14). Data as JSON: /api/errors/8f15979c5c5c7a29. Report an issue: GitHub.