Enhance LinkedObjectPool unit tests

Description:

Add additional unit tests to the LinkedObjectPoolTest class to improve test coverage and ensure robust functionality of the LinkedObjectPool implementation.

Tasks:

Update src/test/java/com/coralblocks/coralme/util/LinkedObjectPoolTest.java:
- Add test for concurrent get and release operations
- Add test for pool growth beyond initial capacity
- Add test for edge cases (e.g., empty pool, very large pool)
- Add test for custom Builder implementation

Test:

In src/test/java/com/coralblocks/coralme/util/LinkedObjectPoolTest.java, add the following test methods:
- testConcurrentGetAndRelease()
- testPoolGrowthBeyondInitialCapacity()
- testEdgeCases()
- testCustomBuilder()

Additional tasks:

Ensure all new tests use appropriate assertions from the org.junit.Assert class
Use meaningful test method names that describe the behavior being tested
Add comments to explain the purpose of each new test method

❌ Error

Traceback (most recent call last):
  File "/Users/williamzeng/Documents/GitHub/sweep-internal/sweepai/o11y/endpoint_wrapper.py", line 52, in wrapper
    result = func(*args, **kwargs)
  File "/Users/williamzeng/Documents/GitHub/sweep-internal/sweepai/backend/api.py", line 832, in create_pull
    new_branch = create_branch_and_push_changes(
  File "/Users/williamzeng/Documents/GitHub/sweep-internal/sweepai/backend/api.py", line 800, in create_branch_and_push_changes
    cloned_repo = ClonedRepo.from_repo_full_name(repo_full_name=repo_name, branch=new_branch)
  File "/Users/williamzeng/Documents/GitHub/sweep-internal/sweepai/core/github_utils.py", line 674, in from_repo_full_name
    return cls(
  File "<string>", line 9, in __init__
  File "/Users/williamzeng/Documents/GitHub/sweep-internal/sweepai/core/github_utils.py", line 643, in __post_init__
    raise Exception(f"Branch '{self.branch}' does not exist.")
Exception: Branch 'sweep/Refactor-LinkedObjectPoolTest-class' does not exist.

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/Users/williamzeng/Documents/GitHub/sweep-internal/sweepai/handlers/on_ticket.py", line 200, in on_ticket
    fix_issue_result = await fix_issue(
  File "/Users/williamzeng/Documents/GitHub/sweep-internal/sweepai/backend/api.py", line 1388, in fix_issue
    repo_name=repo_full_name,
  File "/Users/williamzeng/Documents/GitHub/sweep-internal/sweepai/o11y/endpoint_wrapper.py", line 68, in wrapper
    raise HTTPException(
fastapi.exceptions.HTTPException: 500: An error occurred: Branch 'sweep/Refactor-LinkedObjectPoolTest-class' does not exist.

500: An error occurred: Branch 'sweep/Refactor-LinkedObjectPoolTest-class' does not exist.

Sweep has encountered a runtime error unrelated to your request. Please let us know via this link or at support@sweep.dev directly.

:book: For more information on how to use Sweep, please read our documentation.

^{^{Tracking ID: 55342e3cd5}}

wwzeng1 / CoralME

Sweep: add additional unit tests to linkedObjectpool #35