faster AVM2 constant pool when adding a lot of items to it.

libsrc/ffdec_lib/src/com/jpexs/helpers/HashArrayList.java

@@ -0,0 +1,74 @@
+/*
+ *  Copyright (C) 2010-2015 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.helpers;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+
+/**
+ *
+ * @author JPEXS
+ */
+public class HashArrayList<E> extends ArrayList<E> {
+
+    private HashMap<E, Integer> map = new HashMap<>();
+
+    public HashArrayList() {
+    }
+
+    public HashArrayList(Collection<? extends E> c) {
+        for (E e : c) {
+            add(e);
+        }
+    }
+
+    public HashArrayList(int initialCapacity) {
+        super(initialCapacity);
+    }
+
+    @Override
+    public void ensureCapacity(int minCapacity) {
+        super.ensureCapacity(minCapacity);
+        HashMap<E, Integer> oldMap = map;
+        map = new HashMap<>(minCapacity * 10 / 7);
+        map.putAll(oldMap);
+    }
+
+    @Override
+    public boolean add(E e) {
+        map.put(e, size());
+        return super.add(e);
+    }
+
+    @Override
+    public E set(int index, E element) {
+        map.remove(get(index));
+        map.put(element, index);
+        return super.set(index, element);
+    }
+
+    @Override
+    public int indexOf(Object o) {
+        Integer index = map.get(o);
+        if (index == null) {
+            return -1;
+        }
+
+        return index;
+    }
+}

libsrc/ffdec_lib/src/com/jpexs/helpers/Helper.java

@@ -607,6 +607,14 @@ public class Helper {
         return ret;
     }
 
+    public static int[] toIntArray(List<Integer> list) {
+        int[] ret = new int[list.size()];
+        for (int i = 0; i < ret.length; i++) {
+            ret[i] = list.get(i);
+        }
+        return ret;
+    }
+
     public static ByteArrayInputStream getInputStream(byte[]... data) {
         ByteArrayOutputStream baos = new ByteArrayOutputStream();