jodd-core/src/main/java/jodd/util/ArraysUtil.java
public static int indexOf(byte[] array, byte[] sub, int startIndex) {
		return indexOf(array, sub, startIndex, array.length);
	}
public static int indexOf(byte[] array, byte[] sub, int startIndex) {
		return indexOf(array, sub, startIndex, array.length);
	}
Finds the first occurrence in an array from specified given position.