Just checked out the sources and get this Compilation failure
[INFO] Scanning for projects...
[INFO]
----------------------------------------------------------------------------
[INFO] Building Theme Speyside
[INFO] task-segment: [install]
[INFO]
----------------------------------------------------------------------------
[INFO] [resources:resources]
[INFO] Using default encoding to copy filtered resources.
[INFO] [compiler:compile]
[INFO] Compiling 2 source files to
C:\Projekte\jsf\tobago-src\theme\speyside\target\classes
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Compilation failure
C:\Projekte\jsf\tobago-src\theme\speyside\src\main\java\org\apache\myfaces\tobago\renderkit\html\spe
yside\standard\tag\TabGroupRenderer.java:[65,11] reference to addMarkupClass
is ambiguous, both meth
od
addMarkupClass(javax.faces.component.UIComponent,java.lang.String,java.lang.String)
in org.apache
.myfaces.tobago.renderkit.html.StyleClasses and method
addMarkupClass(org.apache.myfaces.tobago.comp
onent.SupportsMarkup,java.lang.String,java.lang.String) in
org.apache.myfaces.tobago.renderkit.html.
StyleClasses match