Packages 
Package Description
com.launchdarkly.sdk
Base namespace for LaunchDarkly Java-based SDKs, containing common types.
com.launchdarkly.sdk.json
Helper classes and methods for interoperability with JSON.
com.launchdarkly.sdk.server
Main package for the LaunchDarkly Server-Side Java SDK, containing the client and configuration classes.
com.launchdarkly.sdk.server.integrations
This package contains integration tools for connecting the SDK to other software components, or configuring how it connects to LaunchDarkly.
com.launchdarkly.sdk.server.interfaces
The package for interfaces that allow customization of LaunchDarkly components, and interfaces to other advanced SDK features.