in src/main/java/software/amazon/msk/auth/iam/internals/MSKCredentialProvider.java [109:124]
AWSSecurityTokenService getStsClientForDebuggingCreds(AWSCredentials credentials) {
return AWSSecurityTokenServiceClientBuilder.standard()
.withRegion(stsRegion)
.withCredentials(new AWSCredentialsProvider() {
@Override
public AWSCredentials getCredentials() {
return credentials;
}
@Override
public void refresh() {
}
})
.build();
}