[MOB-21074] Fix threading issues during map updates in updateProposition

[siddique-adobe]

Description

Changing the hash map to concurrent hash map in order to ensure the thread safety and avoid the race condition

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have signed the Adobe Open Source CLA.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[spoorthipujariadobe]

Could you please fix the lint errors?

[spoorthipujariadobe]

Pending approval from Praveen

[spoorthipujariadobe]

Looking at this a bit more, I still don't think it is thread-safe. cachedPropositions is read from a different thread than the Optimize extension one, inside the SerialWorkDispatcher. We might also need to use ConcurrentHashMap for that. Thoughts?

[praveek]

Similar changes are also needed for cachedPropositions as it is also accessed from multiple threads.