1 files changed, 0 insertions, 72 deletions

diff --git a/store/src/main/java/org/eclipse/viatra/solver/data/util/CollectionsUtil.java b/store/src/main/java/org/eclipse/viatra/solver/data/util/CollectionsUtil.java
deleted file mode 100644
index 21b0a9df..00000000
--- a/store/src/main/java/org/eclipse/viatra/solver/data/util/CollectionsUtil.java
+++ /dev/null
@@ -1,72 +0,0 @@
-package org.eclipse.viatra.solver.data.util;
-
-import java.util.Iterator;
-import java.util.NoSuchElementException;
-import java.util.function.Function;
-import java.util.function.Predicate;
-
-public final class CollectionsUtil {
-        private CollectionsUtil() {
-                throw new UnsupportedOperationException();
-        }
-        
-        public static <S,T> Iterator<T> map(Iterator<S> source, Function<S, T> transformation) {
-                return new Iterator<T>() {
-
-                        @Override
-                        public boolean hasNext() {
-                                return source.hasNext();
-                        }
-
-                        @Override
-                        public T next() {
-                                return transformation.apply(source.next());
-                        }
-                };
-        }
-        
-        public static <S,T> Iterable<T> map(Iterable<S> source, Function<S, T> transformation) {
-                return (()->map(source.iterator(),transformation));
-        }
-        
-        public static <T> Iterator<T> filter(Iterator<T> source, Predicate<T> condition) {
-                return new Iterator<T>() {
-                        T internalNext = move();
-                        boolean internalHasNext;
-                        
-                        private T move() {
-                                internalHasNext = source.hasNext();
-                                if(internalHasNext) {
-                                        internalNext = source.next();
-                                }
-                                while(internalHasNext && !condition.test(internalNext)) {
-                                        internalHasNext = source.hasNext();
-                                        if(internalHasNext) {
-                                                internalNext = source.next();
-                                        }
-                                }
-                                return internalNext;
-                        }
-
-                        @Override
-                        public boolean hasNext() {
-                                return internalHasNext;
-                        }
-
-                        @Override
-                        public T next() {
-                                if(!internalHasNext) {
-                                        throw new NoSuchElementException();
-                                } else {
-                                        T result = internalNext;
-                                        move();
-                                        return result;
-                                }
-                        }
-                };
-        }
-        
-        public static <T> Iterable<T> filter(Iterable<T> source, Predicate<T> condition) {
-                return (()->filter(source.iterator(),condition));
-        }
-}