ST6RI-913 Also implemented other iterator returning methods.

Author: seidewitz

org.omg.sysml/src/org/omg/sysml/util/OperandEList.java

@@ -103,17 +103,17 @@ public int basicIndexOf(Object object) {
 
 	@Override
 	public int basicLastIndexOf(Object object) {
-		throw new UnsupportedOperationException();
+		return -1;
 	}
 
 	@Override
 	public boolean basicContains(Object object) {
-		throw new UnsupportedOperationException();
+		return false;
 	}
 
 	@Override
 	public boolean basicContainsAll(Collection<?> collection) {
-		throw new UnsupportedOperationException();
+		return false;
 	}
 
 	@Override
@@ -128,22 +128,22 @@ public NotificationChain basicAdd(Expression object, NotificationChain notificat
 
 	@Override
 	public List<Expression> basicList() {
-		throw new UnsupportedOperationException();
+		return Collections.emptyList();
 	}
 
 	@Override
 	public Iterator<Expression> basicIterator() {
-		throw new UnsupportedOperationException();
+		return Collections.emptyIterator();
 	}
 
 	@Override
 	public ListIterator<Expression> basicListIterator() {
-		throw new UnsupportedOperationException();
+		return Collections.emptyListIterator();
 	}
 
 	@Override
 	public ListIterator<Expression> basicListIterator(int i) {
-		throw new UnsupportedOperationException();
+		return Collections.emptyListIterator();
 	}
 
 	@Override
@@ -197,7 +197,7 @@ public boolean add(Expression e) {
 
 	@Override
 	public boolean containsAll(Collection<?> c) {
-		throw new UnsupportedOperationException();
+		return false;
 	}
 
 	@Override
@@ -242,7 +242,7 @@ public int lastIndexOf(Object o) {
 
 	@Override
 	public ListIterator<Expression> listIterator() {
-		throw new UnsupportedOperationException();
+		return Collections.emptyListIterator();
 	}
 
 	@Override
@@ -252,7 +252,7 @@ public ListIterator<Expression> listIterator(int index) {
 
 	@Override
 	public List<Expression> subList(int fromIndex, int toIndex) {
-		throw new UnsupportedOperationException();
+		return Collections.emptyList();
 	}
 
 	@Override