embulk-output-s3 warning

output-s3.txt

> Task :compileJava
/path/to/embulk-output-s3/src/main/java/org/embulk/output/S3FileOutputPlugin.java:135: warning: [deprecation] AmazonS3Client(AWSCredentials,ClientConfiguration) in AmazonS3Client has been deprecated
                client = new AmazonS3Client(basicAWSCredentials, config);
                         ^
/path/to/embulk-output-s3/src/main/java/org/embulk/output/S3FileOutputPlugin.java:139: warning: [deprecation] AmazonS3Client(ClientConfiguration) in AmazonS3Client has been deprecated
                client = new AmazonS3Client(config);
                         ^
/path/to/embulk-output-s3/src/main/java/org/embulk/output/S3FileOutputPlugin.java:143: warning: [deprecation] setEndpoint(String) in AmazonS3Client has been deprecated
                client.setEndpoint(task.getEndpoint().get());
                      ^
/path/to/embulk-output-s3/src/main/java/org/embulk/output/S3FileOutputPlugin.java:256: warning: [deprecation] array() in Buffer has been deprecated
                current.write(buffer.array(), buffer.offset(), buffer.limit());
                                    ^
/path/to/embulk-output-s3/src/main/java/org/embulk/output/S3FileOutputPlugin.java:288: warning: [deprecation] newTaskReport() in Exec has been deprecated
            TaskReport report = Exec.newTaskReport();
                                    ^
/path/to/embulk-output-s3/src/main/java/org/embulk/output/S3FileOutputPlugin.java:316: warning: [deprecation] dump() in Task has been deprecated
        return resume(task.dump(), taskCount, control);
                          ^
/path/to/embulk-output-s3/src/main/java/org/embulk/output/S3FileOutputPlugin.java:324: warning: [deprecation] newConfigDiff() in Exec has been deprecated
        return Exec.newConfigDiff();
                   ^
7 warnings

Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/6.8.3/userguide/command_line_interface.html#sec:command_line_warnings