Fix rest service port conflicts bug

[JackieTien97]

This pull request contains several test simplifications and a minor bug fix. The most significant changes are the simplification of test cases by removing unnecessary loops in the IoTDBUncorrelatedInPredicateSubqueryIT integration test, a bug fix in the construction of the REST service port in the DataNodeWrapper, and an improvement to error handling in the MemoryPool class.

Test simplification:

• Simplified the testInPredicateSubqueryInHavingClause test method in IoTDBUncorrelatedInPredicateSubqueryIT by removing redundant loops over NUMERIC_MEASUREMENTS and directly calling tableResultSetEqualTest with the SQL and expected results. This makes the test code cleaner and easier to maintain. [1] [2] [3]

Bug fix:

• Fixed the assignment of the restServicePort in DataNodeWrapper to use portList[7] instead of an incorrect calculation, ensuring the correct port is used for the REST service.

Error handling improvement:

• Improved the error message in MemoryPool.free to include the original NullPointerException as the cause, making debugging easier.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 39.80%. Comparing base (b49aaac) to head (827f03d).
⚠️ Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
...db/db/queryengine/execution/memory/MemoryPool.java	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #17401      +/-   ##
============================================
- Coverage     39.80%   39.80%   -0.01%     
  Complexity      312      312              
============================================
  Files          5127     5127              
  Lines        346357   346357              
  Branches      44116    44116              
============================================
- Hits         137859   137856       -3     
- Misses       208498   208501       +3     

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