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Null Handling Strategy (Critical for Stability)

In Apache POI:

  • Rows may be null
  • Cells may be null
  • Sheets may exist but contain no rows

These scenarios are common in real Excel files.

Why Null Handling Matters​

Ignoring null checks leads to:

  • NullPointerExceptions
  • flaky Selenium runs
  • unstable CI pipelines

Correct Mindset​

Null handling is not defensive coding — it is expected coding in POI.

Every production-grade framework must:

  • anticipate missing data
  • fail gracefully
  • log meaningful errors

Automation Design Rule​

Null handling must be centralized and consistent across the framework.