Redirect System.out.println to log

Question

In my project test suite there is big usage of

System.out.println 

I\'m trying to redirect these output to log file (through configuration

Answer 1

public class RecursiveLogging {
public static void main(String[] args) {
    System.setOut(new PrintStream(new CustomOutputStream()));

    TestMyException.testPrint();
}

}

class CustomOutputStream extends OutputStream {
private Logger logger = Logger.getLogger(this.getClass());

@Override
public final void write(int b) throws IOException {
    // the correct way of doing this would be using a buffer
    // to store characters until a newline is encountered,
    // this implementation is for illustration only
    logger.info((char) b);
}

@Override
public void write(byte[] b, int off, int len) throws IOException {
    if (b == null) {
        throw new NullPointerException();
    } else if ((off < 0) || (off > b.length) || (len < 0) ||
               ((off + len) > b.length) || ((off + len) < 0)) {
        throw new IndexOutOfBoundsException();
    } else if (len == 0) {
        return;
    }
    byte[] pb = new byte[len];
    for (int i = 0 ; i < len ; i++) {
        pb[i] = (b[off + i]);
    }
    String str = new String(pb);
    logger.info(str);
}
}