diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/helpers/collections/MyMap.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/helpers/collections/MyMap.java
deleted file mode 100644
index cc589298b..000000000
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/helpers/collections/MyMap.java
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- *  Copyright (C) 2010-2026 JPEXS, All rights reserved.
- * 
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 3.0 of the License, or (at your option) any later version.
- * 
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- * 
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library.
- */
-package com.jpexs.decompiler.flash.helpers.collections;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-
-/**
- * Map implementation.
- *
- * @param <K> Type of keys
- * @param <V> Type of values
- * @author JPEXS
- */
-public class MyMap<K, V> implements Map<K, V> {
-
-    /**
-     * List of key-value pairs.
-     */
-    List<MyEntry<K, V>> values = new ArrayList<>();
-
-    @Override
-    public int size() {
-        return values.size();
-    }
-
-    @Override
-    public boolean isEmpty() {
-        return values.isEmpty();
-    }
-
-    @Override
-    public boolean containsKey(Object key) {
-        for (MyEntry<K, V> kv : values) {
-            if (kv.getKey().equals(key)) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    @Override
-    public boolean containsValue(Object value) {
-        for (MyEntry<K, V> kv : values) {
-            if (kv.getValue().equals(value)) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    @Override
-    public V get(Object key) {
-        for (MyEntry<K, V> kv : values) {
-            if (kv.getKey().equals(key)) {
-                return kv.getValue();
-            }
-        }
-        return null;
-    }
-
-    @Override
-    public V put(K key, V value) {
-        for (MyEntry<K, V> kv : values) {
-            if (kv.getKey().equals(key)) {
-                kv.setValue(value);
-                return value;
-            }
-        }
-        values.add(new MyEntry<>(key, value));
-        return value;
-    }
-
-    @Override
-    public V remove(Object key) {
-        for (int i = 0; i < values.size(); i++) {
-            MyEntry<K, V> kv = values.get(i);
-            if (kv.getKey().equals(key)) {
-                values.remove(i);
-                return kv.getValue();
-            }
-        }
-        return null;
-    }
-
-    @Override
-    public void putAll(Map<? extends K, ? extends V> m) {
-        for (K k : m.keySet()) {
-            put(k, m.get(k));
-        }
-    }
-
-    @Override
-    public void clear() {
-        values.clear();
-    }
-
-    @Override
-    public Set<K> keySet() {
-        Set<K> ret = new MySet<>();
-        for (MyEntry<K, V> kv : values) {
-            ret.add(kv.getKey());
-        }
-        return ret;
-    }
-
-    @Override
-    public Collection<V> values() {
-        Collection<V> ret = new ArrayList<>();
-        for (MyEntry<K, V> kv : values) {
-            ret.add(kv.getValue());
-        }
-        return ret;
-    }
-
-    @Override
-    public Set<Entry<K, V>> entrySet() {
-        Set<Entry<K, V>> ret = new MySet<>();
-        ret.addAll(values);
-        return ret;
-    }
-}
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/helpers/collections/MySet.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/helpers/collections/MySet.java
deleted file mode 100644
index e7ff2a0a0..000000000
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/helpers/collections/MySet.java
+++ /dev/null
@@ -1,153 +0,0 @@
-/*
- *  Copyright (C) 2010-2026 JPEXS, All rights reserved.
- * 
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 3.0 of the License, or (at your option) any later version.
- * 
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- * 
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library.
- */
-package com.jpexs.decompiler.flash.helpers.collections;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Set;
-
-/**
- * Set implementation.
- *
- * @param <T> Type of elements
- * @author JPEXS
- */
-public class MySet<T> implements Set<T> {
-
-    /**
-     * List of items.
-     */
-    List<T> items = new ArrayList<>();
-
-    @Override
-    public int size() {
-        return items.size();
-    }
-
-    @Override
-    public boolean isEmpty() {
-        return items.isEmpty();
-    }
-
-    @Override
-    public boolean contains(Object o) {
-        for (T t : items) {
-            if (t.equals(o)) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    @Override
-    public Iterator<T> iterator() {
-        return new Iterator<T>() {
-            int pos = 0;
-
-            @Override
-            public boolean hasNext() {
-                return pos + 1 < items.size();
-            }
-
-            @Override
-            public T next() {
-                return items.get(pos++);
-            }
-
-            @Override
-            public void remove() {
-                items.remove(pos--);
-            }
-        };
-    }
-
-    @Override
-    public Object[] toArray() {
-        Object[] ret = new Object[items.size()];
-        for (int i = 0; i < items.size(); i++) {
-            ret[i] = items.get(i);
-        }
-        return ret;
-    }
-
-    @Override
-    public <T> T[] toArray(T[] a) {
-        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
-    }
-
-    @Override
-    public boolean add(T e) {
-        items.add(e);
-        return true;
-    }
-
-    @Override
-    public boolean remove(Object o) {
-        for (int i = 0; i < items.size(); i++) {
-            if (items.get(i).equals(o)) {
-                items.remove(i);
-                return true;
-            }
-        }
-        return false;
-    }
-
-    @Override
-    public boolean containsAll(Collection<?> c) {
-        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
-    }
-
-    @Override
-    public boolean addAll(Collection<? extends T> c) {
-        for (T t : c) {
-            add(t);
-        }
-        return true;
-    }
-
-    @Override
-    public boolean retainAll(Collection<?> c) {
-        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
-    }
-
-    @Override
-    public boolean removeAll(Collection<?> c) {
-        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
-    }
-
-    @Override
-    public void clear() {
-        items.clear();
-    }
-
-    @Override
-    public String toString() {
-        String ret = "[";
-        boolean first = true;
-        for (T t : items) {
-            if (!first) {
-                ret += ", ";
-            }
-            ret += t.toString();
-            first = false;
-        }
-        ret += "]";
-        return ret;
-    }
-}