http://junit.org: JUnit is a unit testing framework for Java, created by Erich Gamma and Kent Beck. (JUnit)
  • David Saff
  • Kevin Cooney
  • Stefan Birkner
  • Marc Philipp 
package org.junit.internal;

import java.io.PrintStream;

public interface JUnitSystem {

    
Will be removed in the next major release

/**
     * Will be removed in the next major release
     */
    @Deprecated
    void exit(int code);

    PrintStream out();
}