Arrays.copyOfRange method in java throws incorrect exception
Well, the Javadoc says :
Throws:
ArrayIndexOutOfBoundsException - if from < 0 or from > original.length
IllegalArgumentException - if from > to
Looking at the implementation, you can see that you got an IllegalArgumentException exception instead of ArrayIndexOutOfBoundsException due to int overflow :
public static int[] copyOfRange(int[] original, int from, int to) { int newLength = to - from; if (newLength < 0) throw new IllegalArgumentException(from + " > " + to); int[] copy = new int[newLength]; System.arraycopy(original, from, copy, 0, Math.min(original.length - from, newLength)); return copy;}This code thinks that from > to because to-from caused int overflow (due to from being Integer.MIN_VALUE), which resulted in a negative newLength.
You send Integer.MIN_VALUE(-2147483648) as from range.You probably meant to send 0 instead
You face error as MIN_VALUE = -2147483648 [0x80000000] which is negative. either u set 0 i.e. Arrays.copyOfRange(a, 0, 10); . it will allowed you to copy.