Create a Scala web project using Scala IDE.
A Scala project removes the Java builder because it also compiles the Java sources. However, a project without Java builder is not supported by JBoss Tools:
./.bak_1.log:!MESSAGE Can't enable org.jboss.tools.jst.web.kb.kbbuilder support on the project satukancinta-data without Java builder. ./.bak_1.log:!MESSAGE Can't enable org.jboss.tools.cdi.core.cdibuilder support on the project satukancinta-data without Java builder.
Alternative builders should be supported by JBoss Tools, as long as it is compatible with Java builder.
Similar issue might also apply to Groovy projects.