Java Utililty Methods Byte Array Copy Range

if (from < 0 || from >= src.length || to < from || to > src.length)
 return new byte[] {};
byte[] tmp = new byte[from];
byte[] result = new byte[to - from];
ByteArrayInputStream input = new ByteArrayInputStream(src);
input.read(tmp, 0, tmp.length);
input.read(result, 0, result.length);
try {
...