Too Long; Didn't Read
Java ecosystem has been growing for 25 years, and you can find Java libraries for solving a lot of routine tasks. General-purpose libraries contain utility classes for working with beans, collections, caching, compression, hashing, I/O, cryptography, mathematics and statistics, string processing, graphs, concurrency, validation, and many more. It is easy to use third-party libraries with dependency management tools such as Maven or Gradle, which automatically resolve transitive dependencies and download jar-files. If you are developing a large system, you need logging.