/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		// echo "тест тест" | iconv -f 'utf-8' -t 'windows-1251' | base64
 
		byte[] decodedBytes = Base64.getDecoder().decode("8uXx8iDy5fHyCg==");
		System.out.println(new String(decodedBytes) + "\n");
		System.out.println(new String(decodedBytes, "windows-1251") + "\n");
 
 
		final StringBuilder responseString = new StringBuilder();
 
		final BufferedReader reader = new BufferedReader(
			new InputStreamReader(new ByteArrayInputStream(decodedBytes), "windows-1251"));
        String line;
        while ((line = reader.readLine()) != null) {
            responseString.append(line);
        }
        reader.close();
 
		System.out.println(responseString.toString());
	}
}

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