Some things i needed to make Subsonic to deploy on Wildfly 8.
1. Shutdown Wildfly
2. Unzip the Subsonic.zip
3. Unzip the subonic.war to directory subsonic.war
4. Open subsonic.war\WEB-INF\lib\string-1.1.0.jar in 7-zip
5. Choose EDIT of subsonic.war\WEB-INF\lib\string-1.1.0.jar\META-INF\taglib.tld
6. Search for "EMPTY" and replace it with "empty" (lower case) (reference)
7. Save and include in in jar
8. Add e new XML file in jboss-deployment-structure.xml in subsonic.war\WEB-INF with this content
<?xml version="1.0" encoding="ISO-8859-1"?>
<jboss-deployment-structure>
<deployment>
<!-- exclude-subsystem prevents a subsystems deployment unit processors running on a deployment -->
<!-- which gives basically the same effect as removing the subsystem, but it only affects single deployment -->
<exclude-subsystems>
<subsystem name="resteasy" />
<subsystem name="weld" />
</exclude-subsystems>
</deployment>
</jboss-deployment-structure>
9. Save
10. Move the directory "subsonic.war" to Wildfly's \standalone\deployments
11. Create an empty text file "subsonic.war.deployed"
12. Start Wildfly and it should work
Would be nice if this could be included in normal deployment
