[JS] Method BigInteger.fromByteArray fails in JS (NodeJS & Browser)

[hamada147]

Describe the bug
BigInteger.fromByteArray fails in JS but works with no issues in all other platforms.

To Reproduce
Steps to reproduce the behaviour:

val byteArrayInBase64Padded = "P6XiWtDoaj6g3le12ljqjl3J/ZXa/kRswC9GNUYmkTU="
val byteArray = byteArrayInBase64Padded.base64PadDecodedBytes // value is [63, -91, -30, 90, -48, -24, 106, 62, -96, -34, 87, -75, -38, 88, -22, -114, 93, -55, -3, -107, -38, -2, 68, 108, -64, 47, 70, 53, 70, 38, -111, 53] // correct value
val bigInteger = BigInteger.fromByteArray(byteArray, Sign.POSITIVE) // fails here with `ClassCastException`
println(bigInteger.toString()) // 28788801469504357252816216561604952156895770089726804292579259475621317087541

Expected behaviour
Should create a BigInteger value without issue.

Platform
[JS]

If JS (please complete the following information):

• OS: macOS Ventura 13.5 (22G74)
• Browser: Google Chrome
• Version: 115.0.5790.170 (Official Build) (arm64)

Additional context
The following method in unit test testToAndFromByteArray on https://github.com/ionspin/kotlin-multiplatform-bignum/blob/main/bignum/src/commonTest/kotlin/com/ionspin/kotlin/bignum/integer/ByteArrayConversionTest.kt also fails with the same exception ClassCastException.

[ionspin]

Thanks for reporting.

[ionspin]

Sorry for taking so long to look into this, is it still reproducible?

[hamada147]

Unfortunately yes, it is still reproducible