Worked on the Unleash/unleash-client-java repository to implement predicate-based feature enablement in the FakeUnleash module, enabling context-driven gating of features. Refactored the enablement logic to ensure mutual exclusivity between unconditional and conditional configurations, improving the clarity and reliability of feature toggling. Enhanced the handling of feature variants and state management during bulk operations such as enableAll and disableAll, addressing edge cases in feature state transitions. Developed comprehensive tests to validate the new predicate-based functionality. The work leveraged Java for core implementation, with a focus on API design and robust testing practices to support maintainable and flexible feature toggle workflows.