RemoveWhitespace.java

import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

/**
 * @author Ricardo Job
 * @mail ricardo.job@ifpb.edu.br
 * @since 17/03/2016, 16:31:29
 */
public class RemoveWhitespace {

    public static void main(String[] args) {
        Map<String, String> map = new HashMap<>();
        map.put("para", "Kelson Duarte");
        map.put("assunto", "Trabalhao de Conclusão de Curso");
        
        List<String> collect = map.values().stream()
                .map(linha -> linha.split("\\s+"))
                .flatMap(Arrays::stream)
                .collect(Collectors.toList());

        collect.forEach(System.out::println);
    }
}