tinylog is a lightweight logging framework for Java, Kotlin, Scala
Simplify your logging with tinylog. The lightweight logging framework can be used with Java, Kotlin, Scala, and any other JVM language. tinylog is open source and runs wherever Java is used: JVM, GraalVM, and Android.
DroidParts is a carefully crafted Android framework. RESTClient for GETting, PUTting, POSTing, DELETing & InputStream-getting, also speaks JSON. ImageFetcher to asynchronously attach images to ImageViews, with caching, cross-fade & transformation support.
log4j-gwt enables GWT clients to make use of the log4j Logger, and benefit from log4j's flexibility and convenient methods. Using log4j-gwt, logged messages are routed to GWT's internal logging API.