this.project = antProject;
this.runtimeTasks = new HashSet();
// this.coreTagLib = new CoreTagLibrary();
this.antTagLib = new AntTagLibrary( antProject );
this.werkzTagLib = new WerkzTagLibrary();
// #### this is a bit of a hack.
// when we introduce the concept of TagFactory objects
// we could do a cleaner mechanism for this...
TagDefTag.tagLibrary = this;