Java Web Start was distributed as part of the Java Platform, and included in downloads of the JRE and JDK. It was deprecated by Oracle in Java SE 9 and removed in Java SE 11. The code for Java Web Start was not released by Oracle as part of OpenJDK, and thus OpenJDK originally did not support it. IcedTea-Web provides an independent open source implementation of Java Web Start that is currently developed by the AdoptOpenJDK community, RedHat and Karakun AG, and which is bundled in the official OpenJDK installer. Next to this OpenWebStart provides an open source based implementation that is based on IcedTea-Web but offers more features and commercial support options.