Kinesis Producer didnt configure region

properties.put(AWSConfigConstants.AWS_REGION, "eu-west-1");
properties.put(AWSConfigConstants.AWS_ACCESS_KEY_ID, "accessKey");
properties.put(AWSConfigConstants.AWS_SECRET_ACCESS_KEY, "secretKey");

17/12/13 10:50:11 ERROR LogInputStreamReader: [2017-12-13 10:50:11.290786] [0x000057ba][0x00007f31cbce5780] [error] [main.cc:266] Could not configure the region. It was not given in the config and we were unable to retrieve it from EC2 metadata.
17/12/13 10:50:12 ERROR KinesisProducer: Error in child process
org.apache.flink.kinesis.shaded.com.amazonaws.services.kinesis.producer.IrrecoverableError: Child process exited with code 1
	at org.apache.flink.kinesis.shaded.com.amazonaws.services.kinesis.producer.Daemon.fatalError(Daemon.java:525)
	at org.apache.flink.kinesis.shaded.com.amazonaws.services.kinesis.producer.Daemon.fatalError(Daemon.java:497)
	at org.apache.flink.kinesis.shaded.com.amazonaws.services.kinesis.producer.Daemon.startChildProcess(Daemon.java:475)
	at org.apache.flink.kinesis.shaded.com.amazonaws.services.kinesis.producer.Daemon.access$100(Daemon.java:63)
	at org.apache.flink.kinesis.shaded.com.amazonaws.services.kinesis.producer.Daemon$1.run(Daemon.java:133)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
17/12/13 10:50:15 ERROR LogInputStreamReader: [2017-12-13 10:50:15.700441] [0x000057c4][0x00007ffb152b5780] [error] [AWS Log: ERROR](CurlHttpClient)Curl returned error code 28
17/12/13 10:50:15 ERROR LogInputStreamReader: [2017-12-13 10:50:15.700521] [0x000057c4][0x00007ffb152b5780] [error] [AWS Log: ERROR](EC2MetadataClient)Http request to Ec2MetadataService failed.

-		KinesisProducerConfiguration producerConfig = new KinesisProducerConfiguration();
-		producerConfig.setRegion(configProps.getProperty(ProducerConfigConstants.AWS_REGION));
+		// check and pass the configuration properties
+		KinesisProducerConfiguration producerConfig = KinesisConfigUtil.validateProducerConfiguration(configProps);
 		producerConfig.setCredentialsProvider(AWSUtil.getCredentialsProvider(configProps));

producerConfig.setRegion(configProps.getProperty(ProducerConfigConstants.AWS_REGION));