diff --git a/js/js.libraries/src/core/collections.kt b/js/js.libraries/src/core/collections.kt
index 3e8e5b36c97..6ee2d2c25e4 100644
--- a/js/js.libraries/src/core/collections.kt
+++ b/js/js.libraries/src/core/collections.kt
@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2015 JetBrains s.r.o.
+ * Copyright 2010-2016 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,6 +20,12 @@ package kotlin.collections
 public fun <reified T> Collection<T>.toTypedArray(): Array<T> = noImpl
 
 
+@library("copyToArrayImpl")
+internal fun copyToArrayImpl(collection: Collection<*>): Array<Any?> = noImpl
+
+@library("arrayToString")
+internal fun arrayToString(array: Array<*>): String = noImpl
+
 /**
  * Returns an immutable list containing only the specified object [element].
  */
diff --git a/js/js.libraries/src/core/collections/AbstractCollection.kt b/js/js.libraries/src/core/collections/AbstractCollection.kt
new file mode 100644
index 00000000000..db620255d77
--- /dev/null
+++ b/js/js.libraries/src/core/collections/AbstractCollection.kt
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2010-2016 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package kotlin.collections
+
+
+public abstract class AbstractCollection<E> protected constructor() : MutableCollection<E> {
+
+    abstract override val size: Int
+    abstract override fun iterator(): MutableIterator<E>
+
+    override fun add(element: E): Boolean = throw UnsupportedOperationException()
+
+    override fun remove(element: E): Boolean {
+        val iterator = iterator()
+        while (iterator.hasNext()) {
+            if (iterator.next() == element) {
+                iterator.remove()
+                return true
+            }
+        }
+        return false
+    }
+
+    override fun isEmpty(): Boolean = size == 0
+
+    override fun contains(element: E): Boolean {
+        for (e in this) {
+            if (e == element) return true
+        }
+        return false
+    }
+
+    override fun containsAll(elements: Collection<E>): Boolean = elements.all { contains(it) }
+
+
+    override fun addAll(elements: Collection<E>): Boolean {
+        var modified = false
+        for (element in elements) {
+            if (add(element)) modified = true
+        }
+        return modified
+    }
+
+    override fun removeAll(elements: Collection<E>): Boolean = (this as MutableIterable<E>).removeAll { it in elements }
+    override fun retainAll(elements: Collection<E>): Boolean = (this as MutableIterable<E>).removeAll { it !in elements }
+
+    override fun clear(): Unit {
+        val iterator = this.iterator()
+        while (iterator.hasNext()) {
+            iterator.next()
+            iterator.remove()
+        }
+    }
+
+    abstract override fun hashCode(): Int
+
+    abstract override fun equals(other: Any?): Boolean
+
+    override fun toString(): String = joinToString(", ", "[", "]") {
+        if (it === this) "(this Collection)" else it.toString()
+    }
+
+    protected open fun toArray(): Array<Any?> = copyToArrayImpl(this)
+
+    open fun toJSON(): Any = this.toArray()
+}
+
diff --git a/js/js.libraries/src/core/collections/AbstractList.kt b/js/js.libraries/src/core/collections/AbstractList.kt
new file mode 100644
index 00000000000..1332e4df1aa
--- /dev/null
+++ b/js/js.libraries/src/core/collections/AbstractList.kt
@@ -0,0 +1,248 @@
+/*
+ * Copyright 2010-2016 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ * Based on GWT AbstractList
+ * Copyright 2007 Google Inc.
+*/
+
+
+package kotlin.collections
+
+public abstract class AbstractList<E> protected constructor() : AbstractCollection<E>(), MutableList<E> {
+    abstract override val size: Int
+    abstract override fun get(index: Int): E
+
+    protected var modCount: Int = 0
+
+    override fun add(index: Int, element: E): Unit = throw UnsupportedOperationException("Add not supported on this list")
+    override fun removeAt(index: Int): E = throw UnsupportedOperationException("Remove not supported on this list")
+    override fun set(index: Int, element: E): E = throw UnsupportedOperationException("Set not supported on this list")
+
+    override fun add(element: E): Boolean {
+        add(size, element)
+        return true
+    }
+
+    override fun addAll(index: Int, elements: Collection<E>): Boolean {
+        var index = index
+        var changed = false
+        for (e in elements) {
+            add(index++, e)
+            changed = true
+        }
+        return changed
+    }
+
+    override fun clear() {
+        removeRange(0, size)
+    }
+
+
+    override fun iterator(): MutableIterator<E> = IteratorImpl()
+
+    override fun indexOf(element: E): Int {
+        for (i in 0..lastIndex) {
+            if (get(i) == element) {
+                return i
+            }
+        }
+        return -1
+    }
+
+    override fun lastIndexOf(element: E): Int {
+        for (i in lastIndex downTo 0) {
+            if (get(i) == element) {
+                return i
+            }
+        }
+        return -1
+    }
+
+    override fun listIterator(): MutableListIterator<E> = listIterator(0)
+    override fun listIterator(from: Int): MutableListIterator<E> = ListIteratorImpl(from)
+
+
+    override fun subList(fromIndex: Int, toIndex: Int): MutableList<E> = SubList(this, fromIndex, toIndex)
+
+    protected open fun removeRange(fromIndex: Int, endIndex: Int) {
+        val iterator = listIterator(fromIndex)
+        for (i in fromIndex..endIndex - 1) {
+            iterator.next()
+            iterator.remove()
+        }
+    }
+
+    override fun equals(other: Any?): Boolean {
+        if (other === this) return true
+        if (other !is List<*>) return false
+        if (size != other.size) return false
+
+        val otherIterator = other.iterator()
+        for (elem in this) {
+            val elemOther = otherIterator.next()
+            if (elem != elemOther) {
+                return false
+            }
+        }
+
+        return true
+    }
+
+    override fun hashCode(): Int {
+        return Collections_hashCode(this)
+    }
+
+
+    private open inner class IteratorImpl : MutableIterator<E> {
+        /*
+     * i is the index of the item that will be returned on the next call to
+     * next() last is the index of the item that was returned on the previous
+     * call to next() or previous (for ListIterator), -1 if no such item exists.
+     */
+
+        internal var i = 0
+        internal var last = -1
+
+        override fun hasNext(): Boolean = i < size
+
+        override fun next(): E {
+            if (!hasNext()) throw NoSuchElementException()
+            last = i++
+            return get(last)
+        }
+
+        override fun remove() {
+            check(last != -1)
+
+            removeAt(last)
+            i = last
+            last = -1
+        }
+    }
+
+    /**
+     * Implementation of `ListIterator` for abstract lists.
+     */
+    private inner class ListIteratorImpl(start: Int) : IteratorImpl(), MutableListIterator<E> {
+        /*
+     * i is the index of the item that will be returned on the next call to
+     * next() last is the index of the item that was returned on the previous
+     * call to next() or previous (for ListIterator), -1 if no such item exists.
+     */
+
+        init {
+            checkPositionIndex(start, this@AbstractList.size)
+
+            i = start
+        }
+
+        override fun add(o: E) {
+            add(i, o)
+            i++
+            last = -1
+        }
+
+        override fun hasPrevious(): Boolean = i > 0
+
+        override fun nextIndex(): Int = i
+
+        override fun previous(): E {
+            if (!hasPrevious()) throw NoSuchElementException()
+
+            last = --i
+            return get(last)
+        }
+
+        override fun previousIndex(): Int = i - 1
+
+        override fun set(o: E) {
+            require(last != -1)
+
+            this@AbstractList[last] = o
+        }
+    }
+
+    private class SubList<E>(private val wrapped: AbstractList<E>, private val fromIndex: Int, toIndex: Int) : AbstractList<E>() {
+        private var _size: Int = 0
+
+        init {
+            checkCriticalPositionIndexes(fromIndex, toIndex, wrapped.size)
+            this._size = toIndex - fromIndex
+        }
+
+        override fun add(index: Int, element: E) {
+            checkPositionIndex(index, _size)
+
+            wrapped.add(fromIndex + index, element)
+            _size++
+        }
+
+        override fun get(index: Int): E {
+            checkElementIndex(index, _size)
+
+            return wrapped[fromIndex + index]
+        }
+
+        override fun removeAt(index: Int): E {
+            checkElementIndex(index, _size)
+
+            val result = wrapped.removeAt(fromIndex + index)
+            _size--
+            return result
+        }
+
+        override fun set(index: Int, element: E): E {
+            checkElementIndex(index, _size)
+
+            return wrapped.set(fromIndex + index, element)
+        }
+
+        override val size: Int get() = _size
+    }
+
+    companion object {
+        internal fun checkElementIndex(index: Int, size: Int) {
+            if (index < 0 || index >= size) {
+                throw IndexOutOfBoundsException("Index: $index, Size: $size")
+            }
+        }
+
+        internal fun checkPositionIndex(index: Int, size: Int) {
+            if (index < 0 || index > size) {
+                throw IndexOutOfBoundsException("Index: $index, Size: $size")
+            }
+        }
+
+        internal fun checkCriticalPositionIndexes(start: Int, end: Int, size: Int) {
+            if (start < 0 || end > size) {
+                throw IndexOutOfBoundsException("fromIndex: $start, toIndex: $end, size: $size")
+            }
+            if (start > end) {
+                throw IllegalArgumentException("fromIndex: $start > toIndex: $end")
+            }
+        }
+
+        internal fun <T> Collections_hashCode(list: List<T>): Int {
+            var hashCode = 1
+            for (e in list) {
+                hashCode = 31 * hashCode + (e?.hashCode() ?: 0)
+                hashCode = hashCode or 0 // make sure we don't overflow
+            }
+            return hashCode
+        }
+    }
+
+}
diff --git a/js/js.libraries/src/core/collections/ArrayList.kt b/js/js.libraries/src/core/collections/ArrayList.kt
new file mode 100644
index 00000000000..42b53ad46b7
--- /dev/null
+++ b/js/js.libraries/src/core/collections/ArrayList.kt
@@ -0,0 +1,112 @@
+/*
+ * Copyright 2010-2016 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package kotlin.collections
+
+//TODO: should be JS Array-like (https://developer.mozilla.org/en-US/docs/JavaScript/Guide/Predefined_Core_Objects#Working_with_Array-like_objects)
+
+public open class ArrayList<E> internal constructor(private var array: Array<Any?>) : AbstractList<E>(), RandomAccess {
+
+    public constructor(capacity: Int = 0) : this(emptyArray()) {}
+    public constructor(elements: Collection<E>) : this(elements.toTypedArray<Any?>()) {}
+
+
+    override val size: Int get() = array.size
+    override fun get(index: Int): E = array[rangeCheck(index)] as E
+    override fun set(index: Int, element: E): E {
+        rangeCheck(index)
+        return array[index].apply { array[index] = element } as E
+    }
+
+    override fun add(element: E): Boolean {
+        array.asDynamic().push(element)
+        modCount++
+        return true
+    }
+
+    override fun add(index: Int, element: E): Unit {
+        array.asDynamic().splice(insertionRangeCheck(index), 0, element)
+        modCount++
+    }
+
+    override fun addAll(elements: Collection<E>): Boolean {
+        if (elements.isEmpty()) return false
+
+        array += elements.toTypedArray<Any?>()
+        modCount++
+        return true
+    }
+
+    override fun addAll(index: Int, elements: Collection<E>): Boolean {
+        insertionRangeCheck(index)
+
+        if (index == size) return addAll(elements)
+        if (elements.isEmpty()) return false
+
+        array = array.copyOfRange(0, index) + elements.toTypedArray<Any?>() + array.copyOfRange(index, size)
+        modCount++
+        return true
+    }
+
+    override fun removeAt(index: Int): E {
+        rangeCheck(index)
+        modCount++
+        return if (index == size)
+            array.asDynamic().pop()
+        else
+            array.asDynamic().splice(index, 1)[0]
+    }
+
+    override fun remove(element: E): Boolean {
+        for (index in array.indices) {
+            if (array[index] == element) {
+                array.asDynamic().splice(index, 1)
+                modCount++
+                return true
+            }
+        }
+        return false
+    }
+
+    override fun removeRange(fromIndex: Int, toIndex: Int) {
+        modCount++
+        array.asDynamic().splice(fromIndex, toIndex - fromIndex)
+    }
+
+    override fun clear() {
+        array = emptyArray()
+        modCount++
+    }
+
+    override fun contains(element: E): Boolean = indexOf(element) >= 0
+
+    override fun indexOf(element: E): Int = array.indexOf(element)
+
+    override fun lastIndexOf(element: E): Int = array.lastIndexOf(element)
+
+    override fun toString() = arrayToString(array)
+    override fun toArray(): Array<Any?> = array.copyOf()
+
+    private fun rangeCheck(index: Int) = index.apply {
+        if (index !in array.indices)
+            throw IndexOutOfBoundsException("Index: $index, Size: $size")
+    }
+
+    private fun insertionRangeCheck(index: Int) = index.apply {
+        if (index !in 0..size)
+            throw IndexOutOfBoundsException("Index: $index, Size: $size")
+    }
+}
\ No newline at end of file
diff --git a/js/js.libraries/src/core/collections/RandomAccess.kt b/js/js.libraries/src/core/collections/RandomAccess.kt
new file mode 100644
index 00000000000..a94d131b63d
--- /dev/null
+++ b/js/js.libraries/src/core/collections/RandomAccess.kt
@@ -0,0 +1,19 @@
+/*
+ * Copyright 2010-2016 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package kotlin.collections
+
+public interface RandomAccess
\ No newline at end of file
diff --git a/js/js.libraries/src/core/exceptions.kt b/js/js.libraries/src/core/exceptions.kt
index 4e4f15ce346..9a522357cc5 100644
--- a/js/js.libraries/src/core/exceptions.kt
+++ b/js/js.libraries/src/core/exceptions.kt
@@ -34,6 +34,9 @@ public open class IllegalStateException(message: String? = null) : RuntimeExcept
 @library
 public open class IndexOutOfBoundsException(message: String? = null) : RuntimeException(message) {}
 
+@library
+public open class ConcurrentModificationException(message: String? = null) : RuntimeException(message) {}
+
 @library
 public open class UnsupportedOperationException(message: String? = null) : RuntimeException(message) {}
 
diff --git a/js/js.libraries/src/core/javautil.kt b/js/js.libraries/src/core/javautil.kt
index 2f1555f3d87..732d029f306 100644
--- a/js/js.libraries/src/core/javautil.kt
+++ b/js/js.libraries/src/core/javautil.kt
@@ -31,67 +31,24 @@ public inline fun <T> Comparator(crossinline comparison: (T, T) -> Int): Compara
     override fun compare(obj1: T, obj2: T): Int = comparison(obj1, obj2)
 }
 
-@library
-public interface RandomAccess
 
-@library
-public abstract class AbstractCollection<E>() : MutableCollection<E> {
-    override fun isEmpty(): Boolean = noImpl
-    override fun contains(o: E): Boolean = noImpl
-    override fun iterator(): MutableIterator<E> = noImpl
+// in lack of type aliases
+/*
+public abstract class AbstractCollection<E> : kotlin.collections.AbstractCollection<E>()
+public abstract class AbstractList<E> : kotlin.collections.AbstractList<E>()
+public open class ArrayList<E>(capacity: Int = 0) : kotlin.collections.ArrayList<E>(capacity)
+*/
 
-    override fun add(e: E): Boolean = noImpl
-    override fun remove(o: E): Boolean = noImpl
-
-    override fun addAll(c: Collection<E>): Boolean = noImpl
-    override fun containsAll(c: Collection<E>): Boolean = noImpl
-    override fun removeAll(c: Collection<E>): Boolean = noImpl
-    override fun retainAll(c: Collection<E>): Boolean = noImpl
-
-    override fun clear(): Unit = noImpl
-    abstract override val size: Int
-
-    override fun hashCode(): Int = noImpl
-    override fun equals(other: Any?): Boolean = noImpl
-}
-
-@library
-public abstract class AbstractList<E>() : AbstractCollection<E>(), MutableList<E> {
-    abstract override fun get(index: Int): E
-    override fun set(index: Int, element: E): E = noImpl
-
-    override fun add(e: E): Boolean = noImpl
-    override fun add(index: Int, element: E): Unit = noImpl
-    override fun addAll(index: Int, c: Collection<E>): Boolean = noImpl
-
-    override fun removeAt(index: Int): E = noImpl
-
-    override fun indexOf(o: E): Int = noImpl
-    override fun lastIndexOf(o: E): Int = noImpl
-
-    override fun listIterator(): MutableListIterator<E> = noImpl
-    override fun listIterator(index: Int): MutableListIterator<E> = noImpl
-
-    override fun subList(fromIndex: Int, toIndex: Int): MutableList<E> = noImpl
-
-    abstract override val size: Int
-
-    override fun equals(other: Any?): Boolean = noImpl
-
-    override fun toString(): String = noImpl
-}
-
-@library
-public open class ArrayList<E>(capacity: Int = 0) : AbstractList<E>(), RandomAccess {
-    override fun get(index: Int): E = noImpl
-    override val size: Int get() = noImpl
-}
 
 @library
 public open class HashSet<E>(
         initialCapacity: Int = DEFAULT_INITIAL_CAPACITY, loadFactor: Float = DEFAULT_LOAD_FACTOR
 ) : AbstractCollection<E>(), MutableSet<E> {
+    override fun iterator(): MutableIterator<E> = noImpl
     override val size: Int get() = noImpl
+    override fun equals(other: Any?): Boolean = noImpl
+
+    override fun hashCode(): Int = noImpl
 }
 
 @library
diff --git a/js/js.libraries/src/core/javautilCode.kt b/js/js.libraries/src/core/javautilCode.kt
index 634afc4083f..f7ee0d7e84d 100644
--- a/js/js.libraries/src/core/javautilCode.kt
+++ b/js/js.libraries/src/core/javautilCode.kt
@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2014 JetBrains s.r.o.
+ * Copyright 2010-2016 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -28,6 +28,3 @@ public fun <K, V> HashMap(m: Map<out K, V>): HashMap<K, V>
 public fun <K, V> LinkedHashMap(m: Map<out K, V>): LinkedHashMap<K, V>
         = LinkedHashMap<K, V>(m.size).apply { putAll(m) }
 
-public fun <E> ArrayList(c: Collection<E>): ArrayList<E>
-        = ArrayList<E>().apply { asDynamic().array = c.toTypedArray<Any?>() } // black dynamic magic
-
diff --git a/js/js.libraries/src/core/kotlin_special.kt b/js/js.libraries/src/core/kotlin_special.kt
index 9ed756d76f9..b19dac237a8 100644
--- a/js/js.libraries/src/core/kotlin_special.kt
+++ b/js/js.libraries/src/core/kotlin_special.kt
@@ -13,9 +13,7 @@ import java.util.Collections // TODO: it's temporary while we have java.util.Col
  * Returns a [List] that wraps the original array.
  */
 public fun <T> Array<out T>.asList(): List<T> {
-    val al = ArrayList<T>()
-    al.asDynamic().array = this    // black dynamic magic
-    return al
+    return ArrayList<T>(this as Array<Any?>)
 }
 
 /**
diff --git a/js/js.libraries/src/core/regex.kt b/js/js.libraries/src/core/regex.kt
index 031a6050fa0..b5a0681e2f8 100644
--- a/js/js.libraries/src/core/regex.kt
+++ b/js/js.libraries/src/core/regex.kt
@@ -17,7 +17,7 @@
 package kotlin.text
 
 import kotlin.text.js.*
-import java.util.ArrayList
+import java.util.*
 
 /**
  * Provides enumeration values to use to set regular expression options.
@@ -149,7 +149,7 @@ public class Regex(pattern: String, options: Set<RegexOption>) {
     public fun split(input: CharSequence, limit: Int = 0): List<String> {
         require(limit >= 0) { "Limit must be non-negative, but was $limit" }
         val matches = findAll(input).let { if (limit == 0) it else it.take(limit - 1) }
-        val result = ArrayList<String>()
+        val result = mutableListOf<String>()
         var lastStart = 0
 
         for (match in matches) {
@@ -216,7 +216,7 @@ private fun RegExp.findNext(input: String, from: Int): MatchResult? {
         override val groupValues: List<String>
             get() {
                 if (groupValues_ == null) {
-                    groupValues_ = object : java.util.AbstractList<String>() {
+                    groupValues_ = object : AbstractList<String>() {
                         override val size: Int get() = match.length
                         override fun get(index: Int): String = match[index] ?: ""
                     }
diff --git a/js/js.translator/testData/kotlin_lib.js b/js/js.translator/testData/kotlin_lib.js
index 6cd1906cf3a..75a453236f3 100644
--- a/js/js.translator/testData/kotlin_lib.js
+++ b/js/js.translator/testData/kotlin_lib.js
@@ -210,6 +210,7 @@
     Kotlin.IllegalStateException = createClassNowWithMessage(Kotlin.RuntimeException);
     Kotlin.UnsupportedOperationException = createClassNowWithMessage(Kotlin.RuntimeException);
     Kotlin.IndexOutOfBoundsException = createClassNowWithMessage(Kotlin.RuntimeException);
+    Kotlin.ConcurrentModificationException = createClassNowWithMessage(Kotlin.RuntimeException);
     Kotlin.ClassCastException = createClassNowWithMessage(Kotlin.RuntimeException);
     Kotlin.IOException = createClassNowWithMessage(Kotlin.Exception);
     Kotlin.AssertionError = createClassNowWithMessage(Kotlin.Error);
@@ -292,50 +293,6 @@
             }
     });
 
-    /**
-     * @class
-     * @extends {ArrayIterator.<T>}
-     *
-     * @constructor
-     * @param {Kotlin.AbstractList.<T>} list
-     * @template T
-     */
-    lazyInitClasses.ListIterator = Kotlin.createClass(
-        function () {
-            return [Kotlin.kotlin.collections.ListIterator];  // TODO: MutableListIterator
-        },
-        /** @constructs */
-        function (list, index) {
-            this.list = list;
-            this.size = list.size;
-            this.index = (index === undefined) ? 0 : index;
-        }, {
-            hasNext: function () {
-                return this.index < this.size;
-            },
-            nextIndex: function () {
-                return this.index;
-            },
-            next: function () {
-                var index = this.index;
-                var result = this.list.get_za3lpa$(index);
-                this.index = index + 1;
-                return result;
-            },
-            hasPrevious: function() {
-                return this.index > 0;
-            },
-            previousIndex: function () {
-                return this.index - 1;
-            },
-            previous: function () {
-                var index = this.index - 1;
-                var result = this.list.get_za3lpa$(index);
-                this.index = index;
-                return result;
-            }
-    });
-
     lazyInitClasses.Enum = Kotlin.createClass(
         function() {
             return [Kotlin.Comparable];
@@ -369,300 +326,12 @@
         }
     );
 
-    Kotlin.RandomAccess = Kotlin.createTraitNow(null);
-
     Kotlin.PropertyMetadata = Kotlin.createClassNow(null,
         function (name) {
             this.name = name;
         }
     );
 
-    lazyInitClasses.AbstractCollection = Kotlin.createClass(
-        function () {
-            return [Kotlin.kotlin.collections.MutableCollection];
-        }, null, {
-        addAll_wtfk93$: function (collection) {
-            var modified = false;
-            var it = collection.iterator();
-            while (it.hasNext()) {
-                if (this.add_za3rmp$(it.next())) {
-                    modified = true;
-                }
-            }
-            return modified
-        },
-        removeAll_wtfk93$: function (c) {
-            var modified = false;
-            var it = this.iterator();
-            while (it.hasNext()) {
-                if (c.contains_za3rmp$(it.next())) {
-                    it.remove();
-                    modified = true;
-                }
-            }
-            return modified
-        },
-        retainAll_wtfk93$: function (c) {
-            var modified = false;
-            var it = this.iterator();
-            while (it.hasNext()) {
-                if (!c.contains_za3rmp$(it.next())) {
-                    it.remove();
-                    modified = true;
-                }
-            }
-            return modified
-        },
-        clear: function () {
-            // TODO: implement with mutable iterator
-            throw new Kotlin.NotImplementedError("Not implemented yet, see KT-7809");
-        },
-        containsAll_wtfk93$: function (c) {
-            var it = c.iterator();
-            while (it.hasNext()) {
-                if (!this.contains_za3rmp$(it.next())) return false;
-            }
-            return true;
-        },
-        isEmpty: function () {
-            return this.size === 0;
-        },
-        iterator: function () {
-            // TODO: Do not implement mutable iterator() this way, make abstract
-            return new Kotlin.ArrayIterator(this.toArray());
-        },
-        equals_za3rmp$: function (o) {
-            if (this.size !== o.size) return false;
-
-            var iterator1 = this.iterator();
-            var iterator2 = o.iterator();
-            var i = this.size;
-            while (i-- > 0) {
-                if (!Kotlin.equals(iterator1.next(), iterator2.next())) {
-                    return false;
-                }
-            }
-
-            return true;
-        },
-        toString: function () {
-            var builder = "[";
-            var iterator = this.iterator();
-            var first = true;
-            var i = this.size;
-            while (i-- > 0) {
-                if (first) {
-                    first = false;
-                }
-                else {
-                    builder += ", ";
-                }
-                builder += Kotlin.toString(iterator.next());
-            }
-            builder += "]";
-            return builder;
-        },
-        toJSON: function () {
-            return this.toArray();
-        }
-    });
-
-    /**
-     * @interface // actually it's abstract class
-     * @template T
-     */
-    lazyInitClasses.AbstractList = Kotlin.createClass(
-        function () {
-            return [Kotlin.kotlin.collections.MutableList, Kotlin.AbstractCollection];
-        }, null, {
-        iterator: function () {
-            return new Kotlin.ListIterator(this);
-        },
-        listIterator: function() {
-            return new Kotlin.ListIterator(this);
-        },
-        listIterator_za3lpa$: function(index) {
-            if (index < 0 || index > this.size) {
-                throw new Kotlin.IndexOutOfBoundsException("Index: " + index + ", size: " + this.size);
-            }
-            return new Kotlin.ListIterator(this, index);
-        },
-        add_za3rmp$: function (element) {
-            this.add_vux3hl$(this.size, element);
-            return true;
-        },
-        addAll_j97iir$: function (index, collection) {
-            // TODO: implement
-            throw new Kotlin.NotImplementedError("Not implemented yet, see KT-7809");
-        },
-        remove_za3rmp$: function (o) {
-            var index = this.indexOf_za3rmp$(o);
-            if (index !== -1) {
-                this.removeAt_za3lpa$(index);
-                return true;
-            }
-            return false;
-        },
-        clear: function () {
-            // TODO: implement with remove range
-            throw new Kotlin.NotImplementedError("Not implemented yet, see KT-7809");
-        },
-        contains_za3rmp$: function (o) {
-            return this.indexOf_za3rmp$(o) !== -1;
-        },
-        indexOf_za3rmp$: function (o) {
-            var i = this.listIterator();
-            while (i.hasNext())
-                if (Kotlin.equals(i.next(), o))
-                    return i.previousIndex();
-            return -1;
-        },
-        lastIndexOf_za3rmp$: function (o) {
-            var i = this.listIterator_za3lpa$(this.size);
-            while (i.hasPrevious())
-                if (Kotlin.equals(i.previous(), o))
-                    return i.nextIndex();
-            return -1;
-        },
-        subList_vux9f0$: function(fromIndex, toIndex) {
-            if (fromIndex < 0 || toIndex > this.size)
-                throw new Kotlin.IndexOutOfBoundsException();
-            if (fromIndex > toIndex)
-                throw new Kotlin.IllegalArgumentException();
-            return new Kotlin.SubList(this, fromIndex, toIndex);
-        },
-        hashCode: function() {
-            var result = 1;
-            var i = this.iterator();
-            while (i.hasNext()) {
-                var obj = i.next();
-                result = (31*result + Kotlin.hashCode(obj)) | 0;
-            }
-            return result;
-        }
-    });
-
-    lazyInitClasses.SubList = Kotlin.createClass(
-        function () {
-            return [Kotlin.AbstractList];
-        },
-        function (list, fromIndex, toIndex) {
-            this.list = list;
-            this.offset = fromIndex;
-            this._size = toIndex - fromIndex;
-        }, {
-            get_za3lpa$: function (index) {
-                this.checkRange(index);
-                return this.list.get_za3lpa$(index + this.offset);
-            },
-            set_vux3hl$: function (index, value) {
-                this.checkRange(index);
-                this.list.set_vux3hl$(index + this.offset, value);
-            },
-            size: {
-               get: function () {
-                   return this._size;
-               }
-            },
-            add_vux3hl$: function (index, element) {
-                if (index < 0 || index > this.size) {
-                    throw new Kotlin.IndexOutOfBoundsException();
-                }
-                this.list.add_vux3hl$(index + this.offset, element);
-            },
-            removeAt_za3lpa$: function (index) {
-                this.checkRange(index);
-                var result = this.list.removeAt_za3lpa$(index + this.offset);
-                this._size--;
-                return result;
-
-            },
-            checkRange: function (index) {
-                if (index < 0 || index >= this._size) {
-                    throw new Kotlin.IndexOutOfBoundsException();
-                }
-            }
-        });
-
-    //TODO: should be JS Array-like (https://developer.mozilla.org/en-US/docs/JavaScript/Guide/Predefined_Core_Objects#Working_with_Array-like_objects)
-    lazyInitClasses.ArrayList = Kotlin.createClass(
-        function () {
-            return [Kotlin.AbstractList, Kotlin.RandomAccess];
-        },
-        function () {
-            this.array = [];
-        }, {
-            get_za3lpa$: function (index) {
-                this.checkRange(index);
-                return this.array[index];
-            },
-            set_vux3hl$: function (index, value) {
-                this.checkRange(index);
-                this.array[index] = value;
-            },
-            size: {
-               get: function () {
-                   return this.array.length;
-               }
-            },
-            iterator: function () {
-                return Kotlin.arrayIterator(this.array);
-            },
-            add_za3rmp$: function (element) {
-                this.array.push(element);
-                return true;
-            },
-            add_vux3hl$: function (index, element) {
-                this.array.splice(index, 0, element);
-            },
-            addAll_wtfk93$: function (collection) {
-                if (collection.size == 0) {
-                    return false;
-                }
-                var it = collection.iterator();
-                for (var i = this.array.length, n = collection.size; n-- > 0;) {
-                    this.array[i++] = it.next();
-                }
-                return true;
-            },
-            removeAt_za3lpa$: function (index) {
-                this.checkRange(index);
-                return this.array.splice(index, 1)[0];
-            },
-            clear: function () {
-                this.array.length = 0;
-            },
-            indexOf_za3rmp$: function (o) {
-                for (var i = 0; i < this.array.length; i++) {
-                    if (Kotlin.equals(this.array[i], o)) {
-                        return i;
-                    }
-                }
-                return -1;
-            },
-            lastIndexOf_za3rmp$: function (o) {
-                for (var i = this.array.length - 1; i >= 0; i--) {
-                    if (Kotlin.equals(this.array[i], o)) {
-                        return i;
-                    }
-                }
-                return -1;
-            },
-            toArray: function () {
-                return this.array.slice(0);
-            },
-            toString: function () {
-                return Kotlin.arrayToString(this.array);
-            },
-            toJSON: function () {
-                return this.array;
-            },
-            checkRange: function (index) {
-                if (index < 0 || index >= this.array.length) {
-                    throw new Kotlin.IndexOutOfBoundsException();
-                }
-            }
-        });
 
     Kotlin.Runnable = Kotlin.createTraitNow(null, null, {
         run: throwAbstractFunctionInvocationError("Runnable#run")
@@ -1132,9 +801,13 @@
         array.sort(Kotlin.primitiveCompareTo)
     };
 
+    // TODO: Find out whether is it referenced
     Kotlin.copyToArray = function (collection) {
         if (typeof collection.toArray !== "undefined") return collection.toArray();
+        return Kotlin.copyToArrayImpl(collection);
+    };
 
+    Kotlin.copyToArrayImpl = function (collection) {
         var array = [];
         var it = collection.iterator();
         while (it.hasNext()) {
diff --git a/js/js.translator/testData/maps.js b/js/js.translator/testData/maps.js
index b5d0c17ad2f..fe1dec91e29 100644
--- a/js/js.translator/testData/maps.js
+++ b/js/js.translator/testData/maps.js
@@ -382,12 +382,7 @@
     Object.defineProperty(Hashtable.prototype, "values", {
         get: function () {
             var values = this._values();
-            var i = values.length;
-            var result = new Kotlin.ArrayList();
-            while (i--) {
-                result.add_za3rmp$(values[i]);
-            }
-            return result;
+            return Kotlin.kotlin.collections.asReversed_sqtfhv$(new Kotlin.kotlin.collections.ArrayList(values));
         },
         configurable: true
     });
@@ -570,7 +565,7 @@
      */
     lazyInitClasses.PrimitiveHashMapValues = Kotlin.createClass(
         function () {
-            return [Kotlin.AbstractCollection];
+            return [Kotlin.kotlin.collections.AbstractCollection];
         },
         function (map) {
             this.map = map;
@@ -1013,10 +1008,10 @@
     function HashSet(hashingFunction, equalityFunction) {
         var hashTable = new Kotlin.HashTable(hashingFunction, equalityFunction);
 
-        this.addAll_wtfk93$ = Kotlin.AbstractCollection.prototype.addAll_wtfk93$;
-        this.removeAll_wtfk93$ = Kotlin.AbstractCollection.prototype.removeAll_wtfk93$;
-        this.retainAll_wtfk93$ = Kotlin.AbstractCollection.prototype.retainAll_wtfk93$;
-        this.containsAll_wtfk93$ = Kotlin.AbstractCollection.prototype.containsAll_wtfk93$;
+        this.addAll_wtfk93$ = Kotlin.kotlin.collections.AbstractCollection.prototype.addAll_wtfk93$;
+        this.removeAll_wtfk93$ = Kotlin.kotlin.collections.AbstractCollection.prototype.removeAll_wtfk93$;
+        this.retainAll_wtfk93$ = Kotlin.kotlin.collections.AbstractCollection.prototype.retainAll_wtfk93$;
+        this.containsAll_wtfk93$ = Kotlin.kotlin.collections.AbstractCollection.prototype.containsAll_wtfk93$;
 
         this.add_za3rmp$ = function (o) {
             return !hashTable.put_wn2jw4$(o, true);
@@ -1115,7 +1110,7 @@
 
     lazyInitClasses.HashSet = Kotlin.createClass(
         function () {
-            return [Kotlin.kotlin.collections.MutableSet, Kotlin.AbstractCollection];
+            return [Kotlin.kotlin.collections.MutableSet, Kotlin.kotlin.collections.AbstractCollection];
         },
         function () {
             HashSet.call(this);
diff --git a/libraries/stdlib/src/kotlin/collections/ReversedViews.kt b/libraries/stdlib/src/kotlin/collections/ReversedViews.kt
index 95ac5dd0940..4bc8593dc22 100644
--- a/libraries/stdlib/src/kotlin/collections/ReversedViews.kt
+++ b/libraries/stdlib/src/kotlin/collections/ReversedViews.kt
@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2015 JetBrains s.r.o.
+ * Copyright 2010-2016 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,7 +18,7 @@
 
 package kotlin.collections
 
-import java.util.AbstractList
+import java.util.*
 
 private open class ReversedListReadOnly<T>(protected open val delegate: List<T>) : AbstractList<T>() {
     override val size: Int get() = delegate.size
diff --git a/libraries/stdlib/test/collections/IterableTests.kt b/libraries/stdlib/test/collections/IterableTests.kt
index bfc264796c3..3fb8f34de62 100644
--- a/libraries/stdlib/test/collections/IterableTests.kt
+++ b/libraries/stdlib/test/collections/IterableTests.kt
@@ -17,8 +17,7 @@
 package test.collections
 
 import org.junit.Test
-import java.util.ArrayList
-import java.util.LinkedHashSet
+import java.util.*
 import kotlin.test.*
 
 fun <T> iterableOf(vararg items: T): Iterable<T> = Iterable { items.iterator() }
diff --git a/libraries/stdlib/test/js/JsArrayTest.kt b/libraries/stdlib/test/js/JsArrayTest.kt
index c6dd4d9cbc4..c1eecb49a59 100644
--- a/libraries/stdlib/test/js/JsArrayTest.kt
+++ b/libraries/stdlib/test/js/JsArrayTest.kt
@@ -1,8 +1,24 @@
+/*
+ * Copyright 2010-2016 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package test.collections.js
 
 import org.junit.Test as test
 import kotlin.test.*
-import java.util.ArrayList;
+import java.util.*
 
 class JsArrayTest {
 
diff --git a/libraries/stdlib/test/js/SetJsTest.kt b/libraries/stdlib/test/js/SetJsTest.kt
index 0858c4a87f6..21fd4340cb2 100644
--- a/libraries/stdlib/test/js/SetJsTest.kt
+++ b/libraries/stdlib/test/js/SetJsTest.kt
@@ -4,8 +4,7 @@ import kotlin.test.*
 import org.junit.Test
 import test.collections.*
 import test.collections.behaviors.*
-import java.util.HashSet
-import java.util.LinkedHashSet
+import java.util.*
 
 class ComplexSetJsTest : SetJsTest() {
     // Helper function with generic parameter to force to use ComlpexHashMap
diff --git a/libraries/tools/kotlin-stdlib-gen/src/templates/SpecialJS.kt b/libraries/tools/kotlin-stdlib-gen/src/templates/SpecialJS.kt
index 4eb0bb2aa2f..505ba61d3aa 100644
--- a/libraries/tools/kotlin-stdlib-gen/src/templates/SpecialJS.kt
+++ b/libraries/tools/kotlin-stdlib-gen/src/templates/SpecialJS.kt
@@ -1,3 +1,19 @@
+/*
+ * Copyright 2010-2016 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package templates
 
 import templates.Family.*
@@ -11,9 +27,7 @@ fun specialJS(): List<GenericFunction> {
         returns("List<T>")
         body(ArraysOfObjects) {
             """
-            val al = ArrayList<T>()
-            al.asDynamic().array = this    // black dynamic magic
-            return al
+            return ArrayList<T>(this as Array<Any?>)
             """
         }