Worked on enhancing the stability of JetBrains/Exposed by addressing a NullPointerException that occurred during Tables discovery. The solution involved implementing safe casting to ensure only object instances of Table were processed, which prevented crashes when non-object Table classes were present. This approach improved the reliability of the Tables discovery flow, especially for users defining custom Table-like classes. Regression tests were added to verify the new behavior and strengthen test coverage. The work utilized Java and Kotlin, drawing on skills in exception handling, database initialization, and unit testing to align with code quality goals and reduce runtime errors in production environments.