Fix bug in commit

apache/commons-lang@96c30e248
src/main/java/org/apache/commons/lang3/time/DateUtils.java
private static long getFragment(final Calendar calendar, final int fragment, final TimeUnit unit)
//$FALL-THROUGH$

src/main/java/gr/uom/java/xmi/UMLCommentGroup.java

@@ -25,7 +25,7 @@ public List<UMLComment> getGroup() {
 	}
 
 	public boolean sameText(UMLCommentGroup other) {
-		if(this.group.size() == other.group.size()) {
+		if(this.group.size() == other.group.size() && this.group.size() > 1) {
 			int matches = 0;
 			for(int i=0; i<this.group.size(); i++) {
 				if(this.group.get(i).getText().equals(other.group.get(i).getText())) {