Unable to print Base64 encoded string

Can someone explains to me why the 2nd println statement below is not printing anything? Even if I use the encodeToString() method instead of the encode() method, I still can't print the Base64 encoded string. The encoded string is not empty as I can verify using its length() method. I tried a different file, a binary one, and the problem is still there.

import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Base64;

public class Test {

    public static void main(String... args) {
        try {
            byte[] content = Files.readAllBytes(Paths.get("D:\\config.properties"));
            System.out.println(content.length); // correctly prints the length
            byte[] encoded = Base64.getEncoder().encode(content);
            System.out.println(new String(encoded)); // prints nothing
            content = Base64.getDecoder().decode(encoded);
            System.out.println(new String(content)); // prints original content
        } catch (Exception exception) {
            exception.printStackTrace();
        }
    }

}

EDIT

This problem only exists when I run the program in Eclipse. When I run it from the command prompt, the Base64 encoded string can be printed out.