New set of warning errors since 3.9.0 released

[kumamoto]

`../../../../../.pub-cache/hosted/pub.dev/pointycastle-3.9.0/lib/macs/cbc_block_cipher_mac.dart:103:46: Warning: Operand of null-aware operation '!' has type 'Padding' which excludes null.

• 'Padding' is from 'package:pointycastle/api.dart' ('../../../../../.pub-cache/hosted/pub.dev/pointycastle-3.9.0/lib/api.dart'). var paddingName = _padding != null ? '/${_padding!.algorithmName}' : ''; ^ ../../../../../.pub-cache/hosted/pub.dev/pointycastle-3.9.0/lib/macs/cbc_block_cipher_mac.dart:203:7: Warning: Operand of null-aware operation '!' has type 'Padding' which excludes null.
• 'Padding' is from 'package:pointycastle/api.dart' ('../../../../../.pub-cache/hosted/pub.dev/pointycastle-3.9.0/lib/api.dart'). _padding!.addPadding(_buf, _bufOff); ^ ../../../../../.pub-cache/hosted/pub.dev/pointycastle-3.9.0/lib/signers/ecdsa_signer.dart:94:41: Warning: Operand of null-aware operation '!' has type 'Mac' which excludes null.
• 'Mac' is from 'package:pointycastle/api.dart' ('../../../../../.pub-cache/hosted/pub.dev/pointycastle-3.9.0/lib/api.dart'). kCalculator = _RFC6979KCalculator(_kMac!, n, _pvkey!.d!, message); ^ ../../../../../.pub-cache/hosted/pub.dev/pointycastle-3.9.0/lib/signers/ecdsa_signer.dart:166:7: Warning: Operand of null-aware operation '!' has type 'Digest' which excludes null.
• 'Digest' is from 'package:pointycastle/api.dart' ('../../../../../.pub-cache/hosted/pub.dev/pointycastle-3.9.0/lib/api.dart'). _digest!.reset(); ^ ../../../../../.pub-cache/hosted/pub.dev/pointycastle-3.9.0/lib/signers/ecdsa_signer.dart:167:14: Warning: Operand of null-aware operation '!' has type 'Digest' which excludes null.
• 'Digest' is from 'package:pointycastle/api.dart' ('../../../../../.pub-cache/hosted/pub.dev/pointycastle-3.9.0/lib/api.dart'). return _digest!.process(message);`

[ruwiss]

Same error

[Ephenodrom]

This is fixed with version 3.9.1 on pub.dev.

[smcben]

Yep saw this yesterday, thank you!