Worked on enhancing Android runtime stability within the godotengine/godot repository by addressing two critical bugs in the Android Runtime Plugin. Focused on improving cross-language interaction, the developer resolved a NullPointerException that occurred when proxied interface methods had no arguments by ensuring null arguments were treated as empty arrays. Additionally, fixed a ClassCastException in the hashCode implementation by correctly returning a 32-bit integer, which improved compatibility with hash-based containers. These targeted changes, implemented using Java, Kotlin, and plugin development skills, reduced user-facing crashes and streamlined debugging for Android ports, directly benefiting the reliability of Android games and applications built on Godot.