arg3t opened a new pull request, #3707:
URL: https://github.com/apache/parquet-java/pull/3707

   ## Rationale for this change
   
   Makes ParquetFileWriter#end() mark the writer aborted before flushing, so an 
incomplete file is never committed on failure. Previously close() ran before 
the catch block in withAbortOnFailure and withAbortOnFailure only caught 
IOException, causing:
   
    - a corrupt file at the final path on non-rename storage when serializing 
indexes/bloom filters/footer throws any exception
    - a RuntimeException (e.g. OOM) to be missed, leaving the writer un-aborted 
and still flushing
   
   Closes #3706
   
   ## What changes are included in this PR?**
   - withAbortOnFailure catches Throwable (not just IOException) and marks the 
writer aborted.
   - end() runs close() in an outer finally, so abort happens before close() 
and the flush is skipped on failure.
   
   ## Are these changes tested?
   Yes — 2 new tests in TestParquetFileWriter inject an 
IOException/RuntimeException during end() and assert the stream is never 
flushed.
   
   ## Are there any user-facing changes?
   No. Successful writes are unchanged; only the failure path is affected.


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