<dependency> <groupId>org.mirage</groupId> <artifactId>mirage-core</artifactId> <version>1.0.0</version> </dependency> import org.mirage.core.StringUtil; public class MyStringLibrary { private StringUtil stringUtil; public MyStringLibrary() { stringUtil = new StringUtil(); } public String reverseString(String input) { return stringUtil.reverse(input); } public boolean isPalindrome(String input) { return stringUtil.reverse(input).equals(input); } }