some javadoc

java/idea-ui/src/com/intellij/framework/FrameworkGroup.java

@@ -8,6 +8,10 @@ import java.util.Collections;
 import java.util.List;
 
 /**
+ * Represents a group of frameworks. in the frameworks tree ("Additional Libraries and Frameworks"
+ * in the New Project dialog or the tree displayed in the "Add Framework Support" dialog).
+ * Frameworks in a group can have a common version number.
+ *
  * @author nik
  */
 public abstract class FrameworkGroup<V extends FrameworkVersion> implements FrameworkOrGroup {
@@ -26,6 +30,10 @@ public abstract class FrameworkGroup<V extends FrameworkVersion> implements Fram
   @NotNull
   public abstract Icon getIcon();
 
+  /**
+   * Returns the list of known versions of the framework group. The list is shown to the user
+   * and allows them to choose the version used in their project.
+   */
   @NotNull
   public List<V> getGroupVersions() {
     return Collections.emptyList();

java/idea-ui/src/com/intellij/framework/FrameworkOrGroup.java

@@ -20,8 +20,11 @@ import org.jetbrains.annotations.NotNull;
 import javax.swing.*;
 
 /**
+ * Represents a single node (framework or group) in the frameworks tree ("Additional Libraries and Frameworks"
+ * in the New Project dialog or the tree displayed in the "Add Framework Support" dialog).
+ *
  * @author Dmitry Avdeev
- *         Date: 09.10.13
+ * @since 09.10.13
  */
 public interface FrameworkOrGroup {
   @NotNull