Payara Server
Payara Server is an open-source application server from GlassFish Server Open Source Edition. Developed in 2014 by C2B2 Consulting, Payara Server was created as a drop-in replacement for GlassFish when Oracle announced the discontinuation of commercial support. Overview
Payara Server was developed in 2014 as a fork and drop-in replacement for GlassFish Server Open Source Edition. It was released in October 2014 in response to Oracle’s announcement to end commercial support for GlassFish. Payara Server release notes can be found in the documentation. Payara Cloud 

Payara Cloud is cloud-native application runtime. It allows running Jakarta EE apps on the cloud. Support
Payara Server was originally developed in response to Oracle’s announcement to drop commercial support for GlassFish Open Source Edition. As such Payara offers a drop in replacement for GlassFish and support is available from Payara Services Ltd,, via the Payara Enterprise project. See also 

 List of application servers

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Web server software programmed in Java
Free software application servers
Software using the CDDL license