Worked on improving resource management in the apache/texera repository by addressing a bug in the AutoClosingIterator component. Focused on ensuring that resources are reliably released by setting the alreadyClosed flag before invoking onClose, which prevents multiple onClose calls in cases where exceptions are thrown. This change mitigated the risk of resource leaks in long-running workflows. Updated the associated tests to accurately reflect the corrected onClose semantics and to guard against regressions in the workflow-operator. Utilized Scala for both the bug fix and test updates, applying skills in iterator handling, resource management, and testing to enhance system stability and reliability.