ProfileFile: Corrects behaviour when config and credentials not found

[martinKindall]

Now it returns an empty map, as it used to in previous sdk versions.

Motivation and Context

#3869

Modifications

Returning empty map instead of null. This prevents null-pointer exceptions when calling the profiles() method.

Testing

The included tests were tested running the unit tests of that module with ./mvnw package
Testing environment

Java version: 1.8.0_361, vendor: Oracle Corporation
OS name: "windows 10", version: "10.0", arch: "amd64"

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

[debora-ito]

@martinKindall thank you for the PR.

To make the changelog entry you need to run the scripts/new-change script and follow the instructions, then commit the new file created by the script in .changes/next-release.

You can review our CONTRIBUTING guide here to make sure you've checked all guidelines.

[martinKindall]

To make the changelog entry you need to run the scripts/new-change script and follow the instructions, then commit the new file created by the script in .changes/next-release.

Ok, now I added the changelog changes according to the script.

[martinKindall]

Some pipelines are failing but seems like not because of the changes, but rather the action aws-actions/configure-aws-credentials@v1 is missing credentials. Is there something I can do?

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
1 Code Smell

100.0% Coverage
0.0% Duplication

[debora-ito]

Only the builds marked as required are necessary. One of those failed though, I'll retry.