Breaking update

- Added: Optionals for the missing JDK ones.
- Removed: Default values for Reduce and FindFirst. Using Optionals
instead.

src/builder/resources/speiger/assets/collections/templates/queues/ArrayFIFOQueue.template

@@ -7,12 +7,18 @@ import java.util.function.Consumer;
 import java.util.function.BiFunction;
 #endif
 import java.util.Objects;
+#if JDK_TYPE
+import java.util.OPTIONAL;
+#endif
 import java.util.NoSuchElementException;
 #if JDK_FUNCTION
 import java.util.function.PREDICATE;
 #endif
 
 import speiger.src.collections.PACKAGE.collections.ITERATOR;
+#if !JDK_TYPE 
+import speiger.src.collections.PACKAGE.functions.OPTIONAL;
+#endif
 #if !TYPE_OBJECT
 import speiger.src.collections.PACKAGE.functions.COMPARATOR;
 import speiger.src.collections.PACKAGE.functions.CONSUMER;
@@ -318,17 +324,17 @@ public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEUE K
 	}
 	
 	@Override
-	public KEY_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
+	public OPTIONAL KEY_GENERIC_TYPE findFirst(PREDICATE KEY_GENERIC_TYPE filter) {
 		Objects.requireNonNull(filter);
 		for(int i = 0,m=size();i<m;i++) {
 			int index = (first + i) % array.length;
 			if(filter.test(array[index])) {
 				KEY_TYPE data = array[index];
 				removeIndex(index);
-				return data;
+				return OPTIONAL.GET_OPTIONAL(data);
 			}
 		}
-		return EMPTY_VALUE;
+		return OPTIONAL.empty();
 	}
 	
 #if !TYPE_OBJECT
@@ -355,7 +361,7 @@ public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEUE K
 	
 #endif
 	@Override
-	public KEY_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
+	public OPTIONAL KEY_GENERIC_TYPE reduce(UNARY_OPERATOR KEY_KEY_GENERIC_TYPE operator) {
 		Objects.requireNonNull(operator);
 		KEY_TYPE state = EMPTY_VALUE;
 		boolean empty = true;
@@ -367,7 +373,7 @@ public class ARRAY_FIFO_QUEUE KEY_GENERIC_TYPE extends ABSTRACT_PRIORITY_QUEUE K
 			}
 			state = operator.APPLY_VALUE(state, array[(first + i) % array.length]);
 		}
-		return state;
+		return empty ? OPTIONAL.empty() : OPTIONAL.GET_OPTIONAL(state);
 	}
 	
 	@Override