See this blog article for an in-depth explanation why this plugin exists: Guide: How to develop an IBM OpenLiberty Feature
server.xml
<?xml version="1.0" encoding="UTF-8"?>
<server description="cowsay">
<featureManager>
<feature>usr:cowsay-1.0</feature>
</featureManager>
<cowsay>
<startmessage message="Hello, Liberty!" cowfile="cow"/>
</cowsay>
</server>Expected Output
Launching defaultServer (WebSphere Application Server 22.0.0.5/wlp-1.0.64.cl220520220425-0301) on OpenJDK 64-Bit Server VM, version 1.8.0_332-b09 (en_US)
[AUDIT ] CWWKE0001I: The server defaultServer has been launched.
[AUDIT ] CWWKE0100I: This product is licensed for development, and limited production use. The full license terms can be viewed here: https://public.dhe.ibm.com/ibmdl/export/pub/software/websphere/wasdev/license/base_ilan/ilan/22.0.0.5/lafiles/en.html
[INFO ] CWWKE0002I: The kernel started after 0.544 seconds
[INFO ] CWWKF0007I: Feature update started.
[ERROR ] COWSA0001I: ________________
[ERROR ] COWSA0001I: < Hello, Liberty >
[ERROR ] COWSA0001I: ----------------
[ERROR ] COWSA0001I: \ ^__^
[ERROR ] COWSA0001I: \ (oo)\_______
[ERROR ] COWSA0001I: (__)\ )\/\
[ERROR ] COWSA0001I: ||----w |
[ERROR ] COWSA0001I: || ||
[AUDIT ] CWWKF0012I: The server installed the following features: [usr:cowsay-1.0].
[INFO ] CWWKF0008I: Feature update completed in 0.075 seconds.
[AUDIT ] CWWKF0011I: The defaultServer server is ready to run a smarter planet. The defaultServer server started in 0.620 seconds.