[jira] [Created] (FLINK-10235) KafkaTableSourceSinkFactoryBase#getFlinkKafkaPartitioner does not compile with Java 9

["Chesnay Schepler (JIRA)" <ji...@apache.org>]

Chesnay Schepler created FLINK-10235:
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             Summary: KafkaTableSourceSinkFactoryBase#getFlinkKafkaPartitioner does not compile with Java 9
                 Key: FLINK-10235
                 URL: https://issues.apache.org/jira/browse/FLINK-10235
             Project: Flink
          Issue Type: Sub-task
          Components: Table API & SQL
    Affects Versions: 1.7.0
            Reporter: Chesnay Schepler
            Assignee: Chesnay Schepler
             Fix For: 1.7.0


The method compilation fails on java 9. The problem is that the {{CONNECTOR_SINK_PARTITIONER_VALUE_CUSTOM}} branch returns an {{Optional<Class<? extends FlinkKafkaPartitioner>>}}, but the method requires a {{Optional<FlinkKafkaPartitioner<Row>>}}.

{code}
private Optional<FlinkKafkaPartitioner<Row>> getFlinkKafkaPartitioner(DescriptorProperties descriptorProperties) {
	return descriptorProperties
		.getOptionalString(CONNECTOR_SINK_PARTITIONER)
		.flatMap((String partitionerString) -> {
			switch (partitionerString) {
				case CONNECTOR_SINK_PARTITIONER_VALUE_FIXED:
					return Optional.of(new FlinkFixedPartitioner<>());
				case CONNECTOR_SINK_PARTITIONER_VALUE_ROUND_ROBIN:
					return Optional.empty();
				case CONNECTOR_SINK_PARTITIONER_VALUE_CUSTOM:
					final Class<? extends FlinkKafkaPartitioner> partitionerClass =
						descriptorProperties.getClass(CONNECTOR_SINK_PARTITIONER_CLASS, FlinkKafkaPartitioner.class);
					return Optional.of(InstantiationUtil.instantiate(partitionerClass));
				default:
					throw new TableException("Unsupported sink partitioner. Validator should have checked that.");
			}
		});
}
{code}



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