fix warning

refs 2553

org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/internal/storage/eclipse/ModelContext.java

@@ -69,7 +69,7 @@ import org.fortiss.tooling.kernel.utils.UniqueIDUtils;
  * @author hummel
  * @author $Author$
  * @version $Rev$
- * @ConQAT.Rating YELLOW Hash: 908BAA6397ED5750B4FAE01669F9069D
+ * @ConQAT.Rating GREEN Hash: C1F1C761A2C49CC4FBCD0E558AFC97B3
  */
 class ModelContext implements ITopLevelElement, CommandStackListener {
 
@@ -167,6 +167,7 @@ class ModelContext implements ITopLevelElement, CommandStackListener {
 	/** {@inheritDoc} */
 	@Override
 	public EObject getRootModelElement() {
+		// get(0) cause the root model element is always the first one
 		return resource.getContents().get(0);
 	}
 
@@ -186,7 +187,7 @@ class ModelContext implements ITopLevelElement, CommandStackListener {
 
 	/**
 	 * Checks whether all IDs are present and unique and updates {@link #maxId}. In case duplicate
-	 * IDs have been detected (which could only be caused by bug in AF3), these are removed and an
+	 * IDs have been detected (which could only be caused by a bug in AF3), these are removed and an
 	 * error is logged.
 	 */
 	private void checkIDs() {