Build Tools Play is a series of libraries available in <a href="https://mvnrepository.com/artifact/com.typesafe.play">Maven Repository</a>, so you can use any Java build tool to build a Play project. However, much of the development experience Play is known for (routes, templates compilation and auto-reloading) is provided by <a href="http://www.scala-sbt.org/">sbt</a> or <a href="https://docs.gradle.org/current/userguide/play_plugin.html">Gradle</a>.
Twirl Twirl is the <a href="https://www.playframework.com">Play</a> <a href="https://www.playframework.com/documentation/latest/ScalaTemplates">template engine</a>.
Testing Play offers multiple integrations with testing frameworks. There is support for JUnit, Scalatest, Specs2, Selenium, and there are also many testing helpers to easily write tests when using these frameworks.
Database Access Play offers multiple ways to access a database. You can use <a href="https://playframework.com/documentation/latest/JavaJPA">JPA</a>, <a href="https://playframework.com/documentation/latest/JavaEbean">Ebean</a>, <a href="https://playframework.com/documentation/latest/PlaySlick">Slick</a>, <a href="https://www.playframework.com/documentation/latest/Anorm">Anorm</a>, JDBC and many other modules created and maintained by the community.
Play JSON Play JSON is a powerful Scala JSON library, originally developed by the Play team for use with Play Framework. It uses Jackson for JSON parsing and has no Play dependencies. Read the docs for more information about <a href="https://www.playframework.com/documentation/latest/ScalaJson">how to use Play JSON</a>.
Play WS Play WS is a powerful HTTP Client library, originally developed by the Play team for use with Play Framework. It uses <a href="https://github.com/AsyncHttpClient/async-http-client">AsyncHttpClient</a> for HTTP client functionality and has no Play dependencies. For more information on how to use Play WS in Play, please refer to the Play documentation for Java or <a href="https://playframework.com/documentation/2.6.x/ScalaWS">Scala</a>.
Sbt warning message as 'The Java Development Kit (JDK) installation you have is not up to date. sbt requires at least version 6+, you have version 0. Please download a valid JDK and install before running sbt' [Play Framework] (3)
TechEmpower performance benchmark results round 15, including several play2 setups [Play Framework] (7)
When running 2.5.18 application using MessagesApi, I am receiving the error "Unexpected exception ExceptionInInitializerError: null" [Play Framework] (4)
Upgrading to Play 2.5.18 from 2.5.12 MailerClient causing ProvisionException: Unable to provision No implementation for play.libs.mailer.MailerClient was bound [Play Framework] (9)