Add create() for new AwsCredentials Identity types

[gosar]

Motivation and Context

For the new AwsCredentials Identity types, provide a create() to easily instantiate objects of the new type.

Modifications

Add create() to the interfaces. Updated other code to use these methods.

Note, added them to AwsCredentialsIdentity and AwsSessionCredentialsIdentity separately instead of both methods in AwsCredentialsIdentity as per design doc.

Note, does not allow anonymous credentials with new type. Should it?

Note, these anonymous classes have their equals/hashCode. And
assertThat(AwsBasicCredentials.create("a", "b")).isNotEqualTo(AwsCredentialsIdentity.create("a", "b"));

Note, AwsBasicCredentials.create uses trimToNull, but AwsSessionCredentials.create doesn't. Didn't use trimToNull in the new types.

Testing

./mvnw clean install -pl :identity-spi,:auth,:s3

Screenshots (if appropriate)

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)

Checklist

• I have read the CONTRIBUTING document
• Local run of mvn install succeeds
• My code follows the code style of this project
• My change requires a change to the Javadoc documentation
• I have updated the Javadoc documentation accordingly
• I have added tests to cover my changes
• All new and existing tests passed
• I have added a changelog entry. Adding a new entry must be accomplished by running the scripts/new-change script and following the instructions. Commit the new file created by the script in .changes/next-release with your changes.
• My change is to implement 1.11 parity feature and I have updated LaunchChangelog

License

• I confirm that this pull request can be released under the Apache 2 license

[sonarqubecloud]

SonarCloud Quality Gate failed.   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
33 Code Smells

67.5% Coverage
6.1% Duplication