I'm studying the dynamodb, and running a sample code. I have imported all dependencies, but it says
Cannot resolve symbol 'TransactionWriteRequest', 'TransactionLoadRequest','TransactionCanceledException' or 'DynamoDBTransactionWriteExpression'.
pom.xml:
xml
    <dependencies>
        <dependency>
            <groupId>com.amazonaws</groupId>
            <artifactId>aws-java-sdk</artifactId>
            <version>1.11.327</version>
        </dependency>
    </dependencies>
java:
import com.amazonaws.services.dynamodbv2.datamodeling.TransactionWriteRequest;
import com.amazonaws.services.dynamodbv2.datamodeling.TransactionLoadRequest;
import com.amazonaws.services.dynamodbv2.model.TransactionCanceledException;
import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBTransactionWriteExpression;
import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBTransactionLoadExpression;
import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBMappingException;
import com.amazonaws.services.dynamodbv2.model.ResourceNotFoundException;
import com.amazonaws.services.dynamodbv2.model.InternalServerErrorException;