crypto/src/main/java/org/springframework/security/crypto/password/LdapShaPasswordEncoder.java
private byte[] combineHashAndSalt(byte[] hash, byte[] salt) {
		if (salt == null) {
			return hash;
		}

		byte[] hashAndSalt = new byte[hash.length + salt.length];
		System.arraycopy(hash, 0, hashAndSalt, 0, hash.length);
		System.arraycopy(salt, 0, hashAndSalt, hash.length, salt.length);

		return hashAndSalt;
	}
private byte[] combineHashAndSalt(byte[] hash, byte[] salt) {
		if (salt == null) {
			return hash;
		}

		byte[] hashAndSalt = new byte[hash.length + salt.length];
		System.arraycopy(hash, 0, hashAndSalt, 0, hash.length);
		System.arraycopy(salt, 0, hashAndSalt, hash.length, salt.length);

		return hashAndSalt;
	}
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