Properfecked.java

	public void properFecked() throws Exception {
		Class integerCacheClass = Class.forName("java.lang.Integer$IntegerCache");
		Field cacheField = integerCacheClass.getDeclaredField("cache");
		if (Modifier.isFinal(cacheField.getModifiers())) {
			Field modifiersField = Field.class.getDeclaredField("modifiers");
			modifiersField.setAccessible(true);
			modifiersField.set(cacheField, cacheField.getModifiers() - Modifier.FINAL);
		}
		if (!cacheField.isAccessible()) {
			cacheField.setAccessible(true);
		}
		Integer[] cache = (Integer[]) cacheField.get(null);
		System.out.println("got cache. Fucking it up");
		for (int i = 0; i < cache.length; i++) {
			cache[i] = cache[i] * 2;
		}
		System.out.println("writing cache back");
		cacheField.set(null, cache);

		for (int i = 0; i < 100; i++) {
			System.out.println(String.format("Integer.valueOf(%d): %d"));
		}
	}