[hardikkaurani]

• I have read CONTRIBUTING.md.
• This pull request is all my own work -- I have not plagiarized it.
• All filenames are in PascalCase.
• All functions and variable names follow Java naming conventions.
• All new algorithms have a URL in their comments that points to Wikipedia or other similar explanations.
• All new algorithms include a corresponding test class that validates their functionality.
• All new code is formatted with clang-format -i --style=file path/to/your/file.java

Description

This pull request addresses null safety and type safety in FibonacciSearch:

1. Prevent NullPointerException on Null Array: Calling find(null, key) previously threw an unexpected NullPointerException when evaluating array.length == 0. Added an explicit check throwing IllegalArgumentException("Input array must not be null.") consistent with the method contract and existing parameter checks.
2. Eliminated Raw Types and SuppressWarnings: Parameterized isSorted as <T extends Comparable<T>> boolean isSorted(T[] array), eliminating raw type usage and allowing removal of @SuppressWarnings({"rawtypes", "unchecked"}).
3. Marked Class Final: Marked FibonacciSearch as final following project conventions.
4. Updated Javadoc and Added Tests: Updated the @throws Javadoc to document null array handling and added a unit test verifying IllegalArgumentException is thrown when array is null.

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[hardikkaurani]

@alxkm Hi! I have submitted this PR to safely handle null arrays without throwing NullPointerException, eliminate raw type compiler warnings in FibonacciSearch, and add corresponding test coverage. Please review when you have a moment. Thanks!

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.19%. Comparing base (ff36004) to head (b878fce).

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #7650      +/-   ##
============================================
- Coverage     82.19%   82.19%   -0.01%     
- Complexity     8376     8378       +2     
============================================
  Files           842      842              
  Lines         26099    26101       +2     
  Branches       5089     5090       +1     
============================================
+ Hits          21452    21453       +1     
- Misses         3857     3858       +1     
  Partials        790      790              

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[alxkm]

Looks good. NPE and @SuppressWarnings gone, nice. Thank you for the contribution.