import java.io.IOException;

public class ExceptionTest2 {

    public ExceptionTest2(){
        try {
            test();
        } catch (IOException ex) {
            ex.printStackTrace();
        }
    }

    private void test() throws IOException {
        try {
            throw new InterruptedException();
        } catch (InterruptedException ex) {
            IOException exception = new IOException();
            exception.initCause(ex);
            throw exception;
        }
    }
    
    public static void main(String[] args){
        new ExceptionTest2();
    }
}