<dependency>
<groupId>commons-collections</groupId>
<artifactId>commons-collections</artifactId>
<version>4.4</version>
</dependency>
import org.apache.commons.collections4.TransformerUtils;
String result = TransformerUtils.stringValue().transform(123); // "123"
import org.apache.commons.collections4.TransformerUtils;
Integer result = TransformerUtils.integerValue().transform("123"); // 123
import org.apache.commons.collections4.TransformerUtils;
Date result = TransformerUtils.dateValue("yyyy-MM-dd").transform("2021-01-01");
import org.apache.commons.collections4.TransformerUtils;
Transformer<String, Integer> customTransformer = input -> Integer.valueOf(input) + 10;
Integer result = customTransformer.transform("5"); // 15
