--- ProjectClassPathExtender.java~	2005-01-05 11:54:29.000000000 +0100
+++ ProjectClassPathExtender.java	2005-01-06 14:26:32.115101832 +0100
@@ -23,6 +23,10 @@
 
 /**
  * Interface for project's compile classpath extension
+ * Project can provide this interface in its lookup to
+ * allow clients to extend its compilation classpath
+ * by new classpath element (jar, folder, dependent project, library).
+ * @since @since org.netbeans.modules.java.project 1.3 
  */
 public interface ProjectClassPathExtender {