Something unusual has occured to cause the driver to fail. Please report this exception: To use get credentials, you must provide an active custom domain name.

When connecting to Redshift using Okta and the com.amazon.redshift.plugin.BrowserSamlCredentialsProvider plugin the following error is received:

`error:[99999\] Something unusual has occured to cause the driver to fail. Please report this exception: To use get credentials, you must provide an active custom domain name.`

This appears to be a regression in version 2.2.x of the driver, downgrading to 2.1.0.x (specifically tested with 2.1.0.32) works fine. It appears to be an issue with the AWS SDK v1 > v2 migration.

Start by reproducing the Okta connection with com.amazon.redshift.plugin.BrowserSamlCredentialsProvider on driver 2.2.x, then compare it with 2.1.0.32. Inspect the AWS SDK v1-to-v2 migration and the credential lookup path; done means the current driver works without the custom-domain exception and the regression is covered.

Written by the indexing model from the issue text.