out.println("The minimum value shall always be equals or greater after GC.");
out.println("The mean value is usually greater too, except by coincidence.");
final StatisticsFormat format = StatisticsFormat.getInstance();
format.setBorderWidth(1);
try {
format.format(new Statistics[] {beforeGC, afterGC}, out);
} catch (IOException e) {
throw new AssertionError(e);
}
assertTrue("Minimum key value should be greater after garbage collection.",
afterGC.minimum() >= beforeGC.minimum());