<dependency> <groupId>com.squareup.okio</groupId> <artifactId>okio</artifactId> <version>2.10.0</version> </dependency> groovy implementation 'com.squareup.okio:okio:2.10.0' Buffer buffer = new Buffer(); buffer.writeUtf8("Hello, Okio!"); String data = buffer.readUtf8(); System.out.println(data);