Using Google's Agent Development Kit for Java from Kotlin code

A practical walkthrough of using Google's Agent Development Kit (ADK) for Java from Kotlin code, demonstrated via a Kotlin Multiplatform project. Covers Gradle setup, creating a Gemini-based model, defining MCP and function tools (including bridging Kotlin suspend functions to RxJava Singles for ADK compatibility), using @JvmStatic in companion objects for Java interop, and launching the ADK developer web UI for debugging.