AWS SDK 1 和 AWS SDK 2 都可以使用 AWS ProfileCredentialsProvider 类获取 AWS 访问密钥和密码，并将其用于 SDK 的 SDK Client。下面是使用 AWS SDK 2 中 AWS ProfileCredentialsProvider 类获取凭据的示例代码：

import software.amazon.awssdk.auth.credentials.ProfileCredentialsProvider;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.s3.S3Client;
import software.amazon.awssdk.services.s3.model.ListBucketsRequest;
import software.amazon.awssdk.services.s3.model.ListBucketsResponse;

public class S3ClientExample {

    public static void main(String[] args) {

        // Create a client using the profile credentials provider
        S3Client s3Client = S3Client.builder()
                                     .credentialsProvider(ProfileCredentialsProvider.create())
                                     .region(Region.US_WEST_2)
                                     .build();

        // List all buckets
        ListBucketsResponse listBucketsResponse = s3Client.listBuckets(ListBucketsRequest.builder().build());
        listBucketsResponse.buckets().forEach(bucket -> System.out.println(bucket.name()));
    }
}

而使用 AWS SDK 1 中的 AWS ProfileCredentialsProvider，则需要先在 aws.properties 文件中配置凭据，并在代码中使用如下代码进行验证：

import com.amazonaws.auth.profile.ProfileCredentialsProvider;
import com.amazonaws.regions.Region;
import com.amazonaws.services.s3.AmazonS3Client;
import com.amazonaws.services.s3.model.Bucket;

public class S3ClientExample {

    public static void main(String[] args) {

        // Create a client using the profile credentials provider
        AmazonS3Client s3Client = new AmazonS3Client(new ProfileCredentialsProvider());

        // Configure the client with the desired region
        s3Client.setRegion(Region.getRegion(Regions.US_WEST_2));

        // List all buckets
        for (Bucket bucket : s3Client.listBuckets()) {
            System.out.println(bucket.getName());
        }
    }
}

因此，无论是使用 AWS SDK 1 还是 AWS SDK 2，都可以使用 AWS ProfileCredentialsProvider 类来获取 AWS 访问密钥和密码。