# HG changeset patch
# User hannesw
# Date 1370619865 -7200
# Node ID 5e4244619d7941fca835f3d1b56c6cceefee8b5d
# Parent  2f5434c9c9fd21f5a7a870b021a3787f421fff38
8012291: NativeArray is inconsistent in using long for length and index in some places and int for the same in other places
Reviewed-by: lagergren, jlaskey

diff -r 2f5434c9c9fd -r 5e4244619d79 nashorn/src/jdk/nashorn/internal/codegen/FieldObjectCreator.java
--- a/nashorn/src/jdk/nashorn/internal/codegen/FieldObjectCreator.java	Thu Jun 06 21:41:20 2013 +0530
+++ b/nashorn/src/jdk/nashorn/internal/codegen/FieldObjectCreator.java	Fri Jun 07 17:44:25 2013 +0200
@@ -126,7 +126,7 @@
             final T      value  = valueIter.next();
 
             if (symbol != null && value != null) {
-                final int index = ArrayIndex.getArrayIndexNoThrow(key);
+                final int index = ArrayIndex.getArrayIndex(key);
 
                 if (index < 0) {
                     putField(method, key, symbol.getFieldIndex(), value);
diff -r 2f5434c9c9fd -r 5e4244619d79 nashorn/src/jdk/nashorn/internal/codegen/MapCreator.java
--- a/nashorn/src/jdk/nashorn/internal/codegen/MapCreator.java	Thu Jun 06 21:41:20 2013 +0530
+++ b/nashorn/src/jdk/nashorn/internal/codegen/MapCreator.java	Fri Jun 07 17:44:25 2013 +0200
@@ -79,7 +79,7 @@
             final String key    = keys[i];
             final Symbol symbol = symbols[i];
 
-            if (symbol != null && !ArrayIndex.isIndexKey(key)) {
+            if (symbol != null && !ArrayIndex.isIntArrayIndex(key)) {
                 properties.add(new AccessorProperty(key, getPropertyFlags(symbol, hasArguments), structure, symbol.getFieldIndex()));
             }
         }
diff -r 2f5434c9c9fd -r 5e4244619d79 nashorn/src/jdk/nashorn/internal/objects/ArrayBufferView.java
--- a/nashorn/src/jdk/nashorn/internal/objects/ArrayBufferView.java	Thu Jun 06 21:41:20 2013 +0530
+++ b/nashorn/src/jdk/nashorn/internal/objects/ArrayBufferView.java	Fri Jun 07 17:44:25 2013 +0200
@@ -33,6 +33,8 @@
 import jdk.nashorn.internal.runtime.ScriptRuntime;
 import jdk.nashorn.internal.runtime.arrays.ArrayData;
 
+import static jdk.nashorn.internal.runtime.ECMAErrors.rangeError;
+
 @ScriptClass("ArrayBufferView")
 abstract class ArrayBufferView extends ScriptObject {
 
@@ -305,11 +307,11 @@
             dst = factory.construct(length);
         } else if (arg0 instanceof NativeArray) {
             // Constructor(type[] array)
-            length = (int) (((NativeArray) arg0).getArray().length() & 0x7fff_ffff);
+            length = lengthToInt(((NativeArray) arg0).getArray().length());
             dst = factory.construct(length);
         } else {
             // Constructor(unsigned long length)
-            length = JSType.toInt32(arg0);
+            length = lengthToInt(JSType.toInt64(arg0));
             return factory.construct(length);
         }
 
@@ -354,6 +356,13 @@
         }
     }
 
+    private static int lengthToInt(final long length) {
+        if (length > Integer.MAX_VALUE || length < 0) {
+            throw rangeError("inappropriate.array.buffer.length", JSType.toString(length));
+        }
+        return (int) (length & Integer.MAX_VALUE);
+    }
+
     protected static Object subarrayImpl(final Object self, final Object begin0, final Object end0) {
         final ArrayBufferView arrayView = ((ArrayBufferView)self);
         final int elementLength = arrayView.elementLength();
diff -r 2f5434c9c9fd -r 5e4244619d79 nashorn/src/jdk/nashorn/internal/objects/NativeArguments.java
--- a/nashorn/src/jdk/nashorn/internal/objects/NativeArguments.java	Thu Jun 06 21:41:20 2013 +0530
+++ b/nashorn/src/jdk/nashorn/internal/objects/NativeArguments.java	Fri Jun 07 17:44:25 2013 +0200
@@ -27,7 +27,6 @@
 
 import static jdk.nashorn.internal.runtime.ECMAErrors.typeError;
 import static jdk.nashorn.internal.runtime.ScriptRuntime.UNDEFINED;
-import static jdk.nashorn.internal.runtime.arrays.ArrayIndex.getArrayIndexNoThrow;
 import static jdk.nashorn.internal.lookup.Lookup.MH;
 
 import java.lang.invoke.MethodHandle;
@@ -132,103 +131,103 @@
 
     @Override
     public int getInt(final Object key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) ? namedArgs.getInt(index) : super.getInt(key);
     }
 
     @Override
     public int getInt(final double key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) ? namedArgs.getInt(index) : super.getInt(key);
     }
 
     @Override
     public int getInt(final long key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) ? namedArgs.getInt(index) : super.getInt(key);
     }
 
     @Override
     public int getInt(final int key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) ? namedArgs.getInt(index) : super.getInt(key);
     }
 
     @Override
     public long getLong(final Object key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) ? namedArgs.getLong(index) : super.getLong(key);
     }
 
     @Override
     public long getLong(final double key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) ? namedArgs.getLong(index) : super.getLong(key);
     }
 
     @Override
     public long getLong(final long key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) ? namedArgs.getLong(index) : super.getLong(key);
     }
 
     @Override
     public long getLong(final int key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) ? namedArgs.getLong(index) : super.getLong(key);
     }
 
     @Override
     public double getDouble(final Object key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) ? namedArgs.getDouble(index) : super.getDouble(key);
     }
 
     @Override
     public double getDouble(final double key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) ? namedArgs.getDouble(index) : super.getDouble(key);
     }
 
     @Override
     public double getDouble(final long key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) ? namedArgs.getDouble(index) : super.getDouble(key);
     }
 
     @Override
     public double getDouble(final int key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) ? namedArgs.getDouble(index) : super.getDouble(key);
     }
 
     @Override
     public Object get(final Object key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) ? namedArgs.getObject(index) : super.get(key);
     }
 
     @Override
     public Object get(final double key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) ? namedArgs.getObject(index) : super.get(key);
     }
 
     @Override
     public Object get(final long key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) ? namedArgs.getObject(index) : super.get(key);
     }
 
     @Override
     public Object get(final int key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) ? namedArgs.getObject(index) : super.get(key);
     }
 
     @Override
     public void set(final Object key, final int value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         if (isMapped(index)) {
             namedArgs = namedArgs.set(index, value, strict);
         } else {
@@ -238,7 +237,7 @@
 
     @Override
     public void set(final Object key, final long value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         if (isMapped(index)) {
             namedArgs = namedArgs.set(index, value, strict);
         } else {
@@ -248,7 +247,7 @@
 
     @Override
     public void set(final Object key, final double value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         if (isMapped(index)) {
             namedArgs = namedArgs.set(index, value, strict);
         } else {
@@ -258,7 +257,7 @@
 
     @Override
     public void set(final Object key, final Object value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         if (isMapped(index)) {
             namedArgs = namedArgs.set(index, value, strict);
         } else {
@@ -268,7 +267,7 @@
 
     @Override
     public void set(final double key, final int value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         if (isMapped(index)) {
             namedArgs = namedArgs.set(index, value, strict);
         } else {
@@ -278,7 +277,7 @@
 
     @Override
     public void set(final double key, final long value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         if (isMapped(index)) {
             namedArgs = namedArgs.set(index, value, strict);
         } else {
@@ -288,7 +287,7 @@
 
     @Override
     public void set(final double key, final double value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         if (isMapped(index)) {
             namedArgs = namedArgs.set(index, value, strict);
         } else {
@@ -298,7 +297,7 @@
 
     @Override
     public void set(final double key, final Object value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         if (isMapped(index)) {
             namedArgs = namedArgs.set(index, value, strict);
         } else {
@@ -308,7 +307,7 @@
 
     @Override
     public void set(final long key, final int value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         if (isMapped(index)) {
             namedArgs = namedArgs.set(index, value, strict);
         } else {
@@ -318,7 +317,7 @@
 
     @Override
     public void set(final long key, final long value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         if (isMapped(index)) {
             namedArgs = namedArgs.set(index, value, strict);
         } else {
@@ -328,7 +327,7 @@
 
     @Override
     public void set(final long key, final double value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         if (isMapped(index)) {
             namedArgs = namedArgs.set(index, value, strict);
         } else {
@@ -338,7 +337,7 @@
 
     @Override
     public void set(final long key, final Object value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         if (isMapped(index)) {
             namedArgs = namedArgs.set(index, value, strict);
         } else {
@@ -348,7 +347,7 @@
 
     @Override
     public void set(final int key, final int value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         if (isMapped(index)) {
             namedArgs = namedArgs.set(index, value, strict);
         } else {
@@ -358,7 +357,7 @@
 
     @Override
     public void set(final int key, final long value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         if (isMapped(index)) {
             namedArgs = namedArgs.set(index, value, strict);
         } else {
@@ -368,7 +367,7 @@
 
     @Override
     public void set(final int key, final double value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         if (isMapped(index)) {
             namedArgs = namedArgs.set(index, value, strict);
         } else {
@@ -378,7 +377,7 @@
 
     @Override
     public void set(final int key, final Object value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         if (isMapped(index)) {
             namedArgs = namedArgs.set(index, value, strict);
         } else {
@@ -388,55 +387,55 @@
 
     @Override
     public boolean has(final Object key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) || super.has(key);
     }
 
     @Override
     public boolean has(final double key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) || super.has(key);
     }
 
     @Override
     public boolean has(final long key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) || super.has(key);
     }
 
     @Override
     public boolean has(final int key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) || super.has(key);
     }
 
     @Override
     public boolean hasOwnProperty(final Object key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) || super.hasOwnProperty(key);
     }
 
     @Override
     public boolean hasOwnProperty(final int key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) || super.hasOwnProperty(key);
     }
 
     @Override
     public boolean hasOwnProperty(final long key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) || super.hasOwnProperty(key);
     }
 
     @Override
     public boolean hasOwnProperty(final double key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isMapped(index) || super.hasOwnProperty(key);
     }
 
     @Override
     public boolean delete(final int key, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         final boolean success = super.delete(key, strict);
         if (success && namedArgs.has(index)) {
             setDeleted(index);
@@ -446,7 +445,7 @@
 
     @Override
     public boolean delete(final long key, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         final boolean success = super.delete(key, strict);
         if (success && namedArgs.has(index)) {
             setDeleted(index);
@@ -456,7 +455,7 @@
 
     @Override
     public boolean delete(final double key, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         final boolean success = super.delete(key, strict);
         if (success && namedArgs.has(index)) {
             setDeleted(index);
@@ -466,7 +465,7 @@
 
     @Override
     public boolean delete(final Object key, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         final boolean success = super.delete(key, strict);
         if (success && namedArgs.has(index)) {
             setDeleted(index);
@@ -480,7 +479,7 @@
      */
     @Override
     public boolean defineOwnProperty(final String key, final Object propertyDesc, final boolean reject) {
-        final int index = ArrayIndex.getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         if (index >= 0) {
             final boolean allowed = super.defineOwnProperty(key, propertyDesc, false);
             if (!allowed) {
diff -r 2f5434c9c9fd -r 5e4244619d79 nashorn/src/jdk/nashorn/internal/objects/NativeArray.java
--- a/nashorn/src/jdk/nashorn/internal/objects/NativeArray.java	Thu Jun 06 21:41:20 2013 +0530
+++ b/nashorn/src/jdk/nashorn/internal/objects/NativeArray.java	Fri Jun 07 17:44:25 2013 +0200
@@ -228,7 +228,7 @@
         }
 
         // Step 4a
-        final int index = ArrayIndex.getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         if (ArrayIndex.isValidArrayIndex(index)) {
             final long longIndex = ArrayIndex.toLongIndex(index);
             // Step 4b
@@ -770,7 +770,7 @@
 
         final NativeArray copy = new NativeArray(0);
         for (long n = 0; k < finale; n++, k++) {
-            copy.defineOwnProperty((int) n, sobj.get(k));
+            copy.defineOwnProperty(ArrayIndex.getArrayIndex(n), sobj.get(k));
         }
 
         return copy;
@@ -835,28 +835,26 @@
             final ScriptObject sobj    = (ScriptObject) self;
             final boolean      strict  = sobj.isStrictContext();
             final long         len     = JSType.toUint32(sobj.getLength());
+            ArrayData          array   = sobj.getArray();
 
             if (len > 1) {
                 // Get only non-missing elements. Missing elements go at the end
                 // of the sorted array. So, just don't copy these to sort input.
-
                 final ArrayList<Object> src = new ArrayList<>();
-                for (int i = 0; i < (int)len; i++) {
-                    if (sobj.has(i)) {
-                        src.add(sobj.get(i));
+                for (long i = 0; i < len; i = array.nextIndex(i)) {
+                    if (array.has((int) i)) {
+                        src.add(array.getObject((int) i));
                     }
                 }
 
                 final Object[] sorted = sort(src.toArray(), comparefn);
 
                 for (int i = 0; i < sorted.length; i++) {
-                    sobj.set(i, sorted[i], strict);
+                    array = array.set(i, sorted[i], strict);
                 }
 
                 // delete missing elements - which are at the end of sorted array
-                for (int j = sorted.length; j < (int)len; j++) {
-                    sobj.delete(j, strict);
-                }
+                sobj.setArray(array.delete(sorted.length, len - 1));
             }
 
             return sobj;
@@ -906,7 +904,7 @@
             final long from = actualStart + k;
 
             if (sobj.has(from)) {
-                array.defineOwnProperty((int) k, sobj.get(from));
+                array.defineOwnProperty(ArrayIndex.getArrayIndex(k), sobj.get(from));
             }
         }
 
@@ -1143,7 +1141,7 @@
             @Override
             protected boolean forEach(final Object val, final long i) throws Throwable {
                 final Object r = MAP_CALLBACK_INVOKER.invokeExact(callbackfn, thisArg, val, i, self);
-                result.defineOwnProperty((int)index, r);
+                result.defineOwnProperty(ArrayIndex.getArrayIndex(index), r);
                 return true;
             }
 
@@ -1172,7 +1170,7 @@
             @Override
             protected boolean forEach(final Object val, final long i) throws Throwable {
                 if ((boolean)FILTER_CALLBACK_INVOKER.invokeExact(callbackfn, thisArg, val, i, self)) {
-                    result.defineOwnProperty((int)(to++), val);
+                    result.defineOwnProperty(ArrayIndex.getArrayIndex(to++), val);
                 }
                 return true;
             }
diff -r 2f5434c9c9fd -r 5e4244619d79 nashorn/src/jdk/nashorn/internal/objects/NativeString.java
--- a/nashorn/src/jdk/nashorn/internal/objects/NativeString.java	Thu Jun 06 21:41:20 2013 +0530
+++ b/nashorn/src/jdk/nashorn/internal/objects/NativeString.java	Fri Jun 07 17:44:25 2013 +0200
@@ -29,7 +29,6 @@
 import static jdk.nashorn.internal.runtime.ECMAErrors.typeError;
 import static jdk.nashorn.internal.runtime.JSType.isRepresentableAsInt;
 import static jdk.nashorn.internal.runtime.ScriptRuntime.UNDEFINED;
-import static jdk.nashorn.internal.runtime.arrays.ArrayIndex.getArrayIndexNoThrow;
 
 import java.lang.invoke.MethodHandle;
 import java.lang.invoke.MethodHandles;
@@ -156,7 +155,7 @@
     @SuppressWarnings("unused")
     private static Object get(final Object self, final Object key) {
         final CharSequence cs = JSType.toCharSequence(self);
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         if (index >= 0 && index < cs.length()) {
             return String.valueOf(cs.charAt(index));
         }
@@ -191,7 +190,7 @@
     // String characters can be accessed with array-like indexing..
     @Override
     public Object get(final Object key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         if (index >= 0 && index < value.length()) {
             return String.valueOf(value.charAt(index));
         }
@@ -284,7 +283,7 @@
 
     @Override
     public boolean has(final Object key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isValid(index) || super.has(key);
     }
 
@@ -295,19 +294,19 @@
 
     @Override
     public boolean has(final long key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isValid(index) || super.has(key);
     }
 
     @Override
     public boolean has(final double key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isValid(index) || super.has(key);
     }
 
     @Override
     public boolean hasOwnProperty(final Object key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isValid(index) || super.hasOwnProperty(key);
     }
 
@@ -318,13 +317,13 @@
 
     @Override
     public boolean hasOwnProperty(final long key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isValid(index) || super.hasOwnProperty(key);
     }
 
     @Override
     public boolean hasOwnProperty(final double key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return isValid(index) || super.hasOwnProperty(key);
     }
 
@@ -335,19 +334,19 @@
 
     @Override
     public boolean delete(final long key, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return checkDeleteIndex(index, strict)? false : super.delete(key, strict);
     }
 
     @Override
     public boolean delete(final double key, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return checkDeleteIndex(index, strict)? false : super.delete(key, strict);
     }
 
     @Override
     public boolean delete(final Object key, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         return checkDeleteIndex(index, strict)? false : super.delete(key, strict);
     }
 
@@ -364,7 +363,7 @@
 
     @Override
     public Object getOwnPropertyDescriptor(final String key) {
-        final int index = ArrayIndex.getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         if (index >= 0 && index < value.length()) {
             final Global global = Global.instance();
             return global.newDataDescriptor(String.valueOf(value.charAt(index)), false, true, false);
diff -r 2f5434c9c9fd -r 5e4244619d79 nashorn/src/jdk/nashorn/internal/runtime/JSONFunctions.java
--- a/nashorn/src/jdk/nashorn/internal/runtime/JSONFunctions.java	Thu Jun 06 21:41:20 2013 +0530
+++ b/nashorn/src/jdk/nashorn/internal/runtime/JSONFunctions.java	Fri Jun 07 17:44:25 2013 +0200
@@ -25,9 +25,6 @@
 
 package jdk.nashorn.internal.runtime;
 
-import static jdk.nashorn.internal.runtime.arrays.ArrayIndex.getArrayIndexNoThrow;
-import static jdk.nashorn.internal.runtime.arrays.ArrayIndex.isValidArrayIndex;
-
 import java.lang.invoke.MethodHandle;
 import java.util.Iterator;
 import jdk.nashorn.internal.ir.LiteralNode;
@@ -37,6 +34,7 @@
 import jdk.nashorn.internal.ir.UnaryNode;
 import jdk.nashorn.internal.parser.JSONParser;
 import jdk.nashorn.internal.parser.TokenType;
+import jdk.nashorn.internal.runtime.arrays.ArrayIndex;
 import jdk.nashorn.internal.runtime.linker.Bootstrap;
 
 /**
@@ -188,8 +186,8 @@
 
     // add a new property if does not exist already, or else set old property
     private static void setPropertyValue(final ScriptObject sobj, final String name, final Object value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(name);
-        if (isValidArrayIndex(index)) {
+        final int index = ArrayIndex.getArrayIndex(name);
+        if (ArrayIndex.isValidArrayIndex(index)) {
             // array index key
             sobj.defineOwnProperty(index, value);
         } else if (sobj.getMap().findProperty(name) != null) {
diff -r 2f5434c9c9fd -r 5e4244619d79 nashorn/src/jdk/nashorn/internal/runtime/ScriptObject.java
--- a/nashorn/src/jdk/nashorn/internal/runtime/ScriptObject.java	Thu Jun 06 21:41:20 2013 +0530
+++ b/nashorn/src/jdk/nashorn/internal/runtime/ScriptObject.java	Fri Jun 07 17:44:25 2013 +0200
@@ -37,8 +37,6 @@
 import static jdk.nashorn.internal.runtime.PropertyDescriptor.VALUE;
 import static jdk.nashorn.internal.runtime.PropertyDescriptor.WRITABLE;
 import static jdk.nashorn.internal.runtime.ScriptRuntime.UNDEFINED;
-import static jdk.nashorn.internal.runtime.arrays.ArrayIndex.getArrayIndexNoThrow;
-import static jdk.nashorn.internal.runtime.arrays.ArrayIndex.isValidArrayIndex;
 
 import java.lang.invoke.MethodHandle;
 import java.lang.invoke.MethodHandles;
@@ -65,6 +63,7 @@
 import jdk.nashorn.internal.objects.AccessorPropertyDescriptor;
 import jdk.nashorn.internal.objects.DataPropertyDescriptor;
 import jdk.nashorn.internal.runtime.arrays.ArrayData;
+import jdk.nashorn.internal.runtime.arrays.ArrayIndex;
 import jdk.nashorn.internal.runtime.linker.Bootstrap;
 import jdk.nashorn.internal.runtime.linker.LinkerCallSite;
 import jdk.nashorn.internal.runtime.linker.NashornCallSiteDescriptor;
@@ -333,7 +332,7 @@
             return global.newDataDescriptor(getWithProperty(property), configurable, enumerable, writable);
         }
 
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         final ArrayData array = getArray();
 
         if (array.has(index)) {
@@ -533,21 +532,23 @@
      * from any object in proto chain such as Array.prototype, Object.prototype.
      * This method directly sets a particular element value in the current object.
      *
-     * @param index index key for property
+     * @param index key for property
      * @param value value to define
      */
     protected final void defineOwnProperty(final int index, final Object value) {
-        if (index >= getArray().length()) {
+        assert ArrayIndex.isValidArrayIndex(index) : "invalid array index";
+        final long longIndex = ArrayIndex.toLongIndex(index);
+        if (longIndex >= getArray().length()) {
             // make array big enough to hold..
-            setArray(getArray().ensure(index));
+            setArray(getArray().ensure(longIndex));
         }
         setArray(getArray().set(index, value, false));
     }
 
     private void checkIntegerKey(final String key) {
-        final int index = getArrayIndexNoThrow(key);
-
-        if (isValidArrayIndex(index)) {
+        final int index = ArrayIndex.getArrayIndex(key);
+
+        if (ArrayIndex.isValidArrayIndex(index)) {
             final ArrayData data = getArray();
 
             if (data.has(index)) {
@@ -557,7 +558,7 @@
     }
 
     private void removeArraySlot(final String key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         final ArrayData array = getArray();
 
         if (array.has(index)) {
@@ -2238,7 +2239,7 @@
     }
 
     private int getInt(final int index, final String key) {
-        if (isValidArrayIndex(index)) {
+        if (ArrayIndex.isValidArrayIndex(index)) {
              for (ScriptObject object = this; ; ) {
                 final FindProperty find = object.findProperty(key, false, false, this);
 
@@ -2269,7 +2270,7 @@
 
     @Override
     public int getInt(final Object key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         final ArrayData array = getArray();
 
         if (array.has(index)) {
@@ -2281,7 +2282,7 @@
 
     @Override
     public int getInt(final double key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         final ArrayData array = getArray();
 
         if (array.has(index)) {
@@ -2293,7 +2294,7 @@
 
     @Override
     public int getInt(final long key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         final ArrayData array = getArray();
 
         if (array.has(index)) {
@@ -2315,7 +2316,7 @@
     }
 
     private long getLong(final int index, final String key) {
-        if (isValidArrayIndex(index)) {
+        if (ArrayIndex.isValidArrayIndex(index)) {
             for (ScriptObject object = this; ; ) {
                 final FindProperty find = object.findProperty(key, false, false, this);
 
@@ -2346,7 +2347,7 @@
 
     @Override
     public long getLong(final Object key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         final ArrayData array = getArray();
 
         if (array.has(index)) {
@@ -2358,7 +2359,7 @@
 
     @Override
     public long getLong(final double key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         final ArrayData array = getArray();
 
         if (array.has(index)) {
@@ -2370,7 +2371,7 @@
 
     @Override
     public long getLong(final long key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         final ArrayData array = getArray();
 
         if (array.has(index)) {
@@ -2392,7 +2393,7 @@
     }
 
     private double getDouble(final int index, final String key) {
-        if (isValidArrayIndex(index)) {
+        if (ArrayIndex.isValidArrayIndex(index)) {
             for (ScriptObject object = this; ; ) {
                 final FindProperty find = object.findProperty(key, false, false, this);
 
@@ -2423,7 +2424,7 @@
 
     @Override
     public double getDouble(final Object key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         final ArrayData array = getArray();
 
         if (array.has(index)) {
@@ -2435,7 +2436,7 @@
 
     @Override
     public double getDouble(final double key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         final ArrayData array = getArray();
 
         if (array.has(index)) {
@@ -2447,7 +2448,7 @@
 
     @Override
     public double getDouble(final long key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         final ArrayData array = getArray();
 
         if (array.has(index)) {
@@ -2469,7 +2470,7 @@
     }
 
     private Object get(final int index, final String key) {
-        if (isValidArrayIndex(index)) {
+        if (ArrayIndex.isValidArrayIndex(index)) {
             for (ScriptObject object = this; ; ) {
                 final FindProperty find = object.findProperty(key, false, false, this);
 
@@ -2500,7 +2501,7 @@
 
     @Override
     public Object get(final Object key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         final ArrayData array = getArray();
 
         if (array.has(index)) {
@@ -2512,7 +2513,7 @@
 
     @Override
     public Object get(final double key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         final ArrayData array = getArray();
 
         if (array.has(index)) {
@@ -2524,7 +2525,7 @@
 
     @Override
     public Object get(final long key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         final ArrayData array = getArray();
 
         if (array.has(index)) {
@@ -2640,9 +2641,9 @@
 
     @Override
     public void set(final Object key, final int value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
-
-        if (isValidArrayIndex(index)) {
+        final int index = ArrayIndex.getArrayIndex(key);
+
+        if (ArrayIndex.isValidArrayIndex(index)) {
             if (getArray().has(index)) {
                 setArray(getArray().set(index, value, strict));
             } else {
@@ -2657,9 +2658,9 @@
 
     @Override
     public void set(final Object key, final long value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
-
-        if (isValidArrayIndex(index)) {
+        final int index = ArrayIndex.getArrayIndex(key);
+
+        if (ArrayIndex.isValidArrayIndex(index)) {
             if (getArray().has(index)) {
                 setArray(getArray().set(index, value, strict));
             } else {
@@ -2674,9 +2675,9 @@
 
     @Override
     public void set(final Object key, final double value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
-
-        if (isValidArrayIndex(index)) {
+        final int index = ArrayIndex.getArrayIndex(key);
+
+        if (ArrayIndex.isValidArrayIndex(index)) {
             if (getArray().has(index)) {
                 setArray(getArray().set(index, value, strict));
             } else {
@@ -2691,9 +2692,9 @@
 
     @Override
     public void set(final Object key, final Object value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
-
-        if (isValidArrayIndex(index)) {
+        final int index = ArrayIndex.getArrayIndex(key);
+
+        if (ArrayIndex.isValidArrayIndex(index)) {
             if (getArray().has(index)) {
                 setArray(getArray().set(index, value, strict));
             } else {
@@ -2711,9 +2712,9 @@
 
     @Override
     public void set(final double key, final int value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
-
-        if (isValidArrayIndex(index)) {
+        final int index = ArrayIndex.getArrayIndex(key);
+
+        if (ArrayIndex.isValidArrayIndex(index)) {
             if (getArray().has(index)) {
                 setArray(getArray().set(index, value, strict));
             } else {
@@ -2728,9 +2729,9 @@
 
     @Override
     public void set(final double key, final long value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
-
-        if (isValidArrayIndex(index)) {
+        final int index = ArrayIndex.getArrayIndex(key);
+
+        if (ArrayIndex.isValidArrayIndex(index)) {
             if (getArray().has(index)) {
                 setArray(getArray().set(index, value, strict));
             } else {
@@ -2745,9 +2746,9 @@
 
     @Override
     public void set(final double key, final double value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
-
-        if (isValidArrayIndex(index)) {
+        final int index = ArrayIndex.getArrayIndex(key);
+
+        if (ArrayIndex.isValidArrayIndex(index)) {
             if (getArray().has(index)) {
                 setArray(getArray().set(index, value, strict));
             } else {
@@ -2762,9 +2763,9 @@
 
     @Override
     public void set(final double key, final Object value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
-
-        if (isValidArrayIndex(index)) {
+        final int index = ArrayIndex.getArrayIndex(key);
+
+        if (ArrayIndex.isValidArrayIndex(index)) {
             if (getArray().has(index)) {
                 setArray(getArray().set(index, value, strict));
             } else {
@@ -2779,9 +2780,9 @@
 
     @Override
     public void set(final long key, final int value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
-
-        if (isValidArrayIndex(index)) {
+        final int index = ArrayIndex.getArrayIndex(key);
+
+        if (ArrayIndex.isValidArrayIndex(index)) {
             if (getArray().has(index)) {
                 setArray(getArray().set(index, value, strict));
             } else {
@@ -2796,9 +2797,9 @@
 
     @Override
     public void set(final long key, final long value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
-
-        if (isValidArrayIndex(index)) {
+        final int index = ArrayIndex.getArrayIndex(key);
+
+        if (ArrayIndex.isValidArrayIndex(index)) {
             if (getArray().has(index)) {
                 setArray(getArray().set(index, value, strict));
             } else {
@@ -2813,9 +2814,9 @@
 
     @Override
     public void set(final long key, final double value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
-
-        if (isValidArrayIndex(index)) {
+        final int index = ArrayIndex.getArrayIndex(key);
+
+        if (ArrayIndex.isValidArrayIndex(index)) {
             if (getArray().has(index)) {
                 setArray(getArray().set(index, value, strict));
             } else {
@@ -2830,9 +2831,9 @@
 
     @Override
     public void set(final long key, final Object value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
-
-        if (isValidArrayIndex(index)) {
+        final int index = ArrayIndex.getArrayIndex(key);
+
+        if (ArrayIndex.isValidArrayIndex(index)) {
             if (getArray().has(index)) {
                 setArray(getArray().set(index, value, strict));
             } else {
@@ -2847,9 +2848,9 @@
 
     @Override
     public void set(final int key, final int value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
-
-        if (isValidArrayIndex(index)) {
+        final int index = ArrayIndex.getArrayIndex(key);
+
+        if (ArrayIndex.isValidArrayIndex(index)) {
             if (getArray().has(index)) {
                 setArray(getArray().set(index, value, strict));
             } else {
@@ -2864,9 +2865,9 @@
 
     @Override
     public void set(final int key, final long value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
-
-        if (isValidArrayIndex(index)) {
+        final int index = ArrayIndex.getArrayIndex(key);
+
+        if (ArrayIndex.isValidArrayIndex(index)) {
             if (getArray().has(index)) {
                 setArray(getArray().set(index, value, strict));
             } else {
@@ -2881,9 +2882,9 @@
 
     @Override
     public void set(final int key, final double value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
-
-        if (isValidArrayIndex(index)) {
+        final int index = ArrayIndex.getArrayIndex(key);
+
+        if (ArrayIndex.isValidArrayIndex(index)) {
             if (getArray().has(index)) {
                 setArray(getArray().set(index, value, strict));
             } else {
@@ -2898,9 +2899,9 @@
 
     @Override
     public void set(final int key, final Object value, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
-
-        if (isValidArrayIndex(index)) {
+        final int index = ArrayIndex.getArrayIndex(key);
+
+        if (ArrayIndex.isValidArrayIndex(index)) {
             if (getArray().has(index)) {
                 setArray(getArray().set(index, value, strict));
             } else {
@@ -2915,9 +2916,9 @@
 
     @Override
     public boolean has(final Object key) {
-        final int index = getArrayIndexNoThrow(key);
-
-        if (isValidArrayIndex(index)) {
+        final int index = ArrayIndex.getArrayIndex(key);
+
+        if (ArrayIndex.isValidArrayIndex(index)) {
             for (ScriptObject self = this; self != null; self = self.getProto()) {
                 if (self.getArray().has(index)) {
                     return true;
@@ -2932,9 +2933,9 @@
 
     @Override
     public boolean has(final double key) {
-        final int index = getArrayIndexNoThrow(key);
-
-        if (isValidArrayIndex(index)) {
+        final int index = ArrayIndex.getArrayIndex(key);
+
+        if (ArrayIndex.isValidArrayIndex(index)) {
             for (ScriptObject self = this; self != null; self = self.getProto()) {
                 if (self.getArray().has(index)) {
                     return true;
@@ -2949,9 +2950,9 @@
 
     @Override
     public boolean has(final long key) {
-        final int index = getArrayIndexNoThrow(key);
-
-        if (isValidArrayIndex(index)) {
+        final int index = ArrayIndex.getArrayIndex(key);
+
+        if (ArrayIndex.isValidArrayIndex(index)) {
             for (ScriptObject self = this; self != null; self = self.getProto()) {
                 if (self.getArray().has(index)) {
                     return true;
@@ -2966,9 +2967,9 @@
 
     @Override
     public boolean has(final int key) {
-        final int index = getArrayIndexNoThrow(key);
-
-        if (isValidArrayIndex(index)) {
+        final int index = ArrayIndex.getArrayIndex(key);
+
+        if (ArrayIndex.isValidArrayIndex(index)) {
             for (ScriptObject self = this; self != null; self = self.getProto()) {
                 if (self.getArray().has(index)) {
                     return true;
@@ -2983,7 +2984,7 @@
 
     @Override
     public boolean hasOwnProperty(final Object key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
 
         if (getArray().has(index)) {
             return true;
@@ -2996,7 +2997,7 @@
 
     @Override
     public boolean hasOwnProperty(final int key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
 
         if (getArray().has(index)) {
             return true;
@@ -3009,7 +3010,7 @@
 
     @Override
     public boolean hasOwnProperty(final long key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
 
         if (getArray().has(index)) {
             return true;
@@ -3022,7 +3023,7 @@
 
     @Override
     public boolean hasOwnProperty(final double key) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
 
         if (getArray().has(index)) {
             return true;
@@ -3035,7 +3036,7 @@
 
     @Override
     public boolean delete(final int key, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         final ArrayData array = getArray();
 
         if (array.has(index)) {
@@ -3051,7 +3052,7 @@
 
     @Override
     public boolean delete(final long key, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         final ArrayData array = getArray();
 
         if (array.has(index)) {
@@ -3067,7 +3068,7 @@
 
     @Override
     public boolean delete(final double key, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         final ArrayData array = getArray();
 
         if (array.has(index)) {
@@ -3083,7 +3084,7 @@
 
     @Override
     public boolean delete(final Object key, final boolean strict) {
-        final int index = getArrayIndexNoThrow(key);
+        final int index = ArrayIndex.getArrayIndex(key);
         final ArrayData array = getArray();
 
         if (array.has(index)) {
diff -r 2f5434c9c9fd -r 5e4244619d79 nashorn/src/jdk/nashorn/internal/runtime/arrays/ArrayIndex.java
--- a/nashorn/src/jdk/nashorn/internal/runtime/arrays/ArrayIndex.java	Thu Jun 06 21:41:20 2013 +0530
+++ b/nashorn/src/jdk/nashorn/internal/runtime/arrays/ArrayIndex.java	Fri Jun 07 17:44:25 2013 +0200
@@ -44,7 +44,7 @@
     /**
      * Fast conversion of non-negative integer string to long.
      * @param key Key as a string.
-     * @return long value of string or -1.
+     * @return long value of string or {@code -1} if string does not represent a valid index.
      */
     private static long fromString(final String key) {
         long value = 0;
@@ -52,7 +52,7 @@
 
         // Check for empty string or leading 0
         if (length == 0 || (length > 1 && key.charAt(0) == '0')) {
-            return -1;
+            return INVALID_ARRAY_INDEX;
         }
 
         // Fast toNumber.
@@ -61,7 +61,7 @@
 
             // If not a digit.
             if (digit < '0' || digit > '9') {
-                return -1;
+                return INVALID_ARRAY_INDEX;
             }
 
             // Insert digit.
@@ -69,7 +69,7 @@
 
             // Check for overflow (need to catch before wrap around.)
             if (value > MAX_ARRAY_INDEX) {
-                return -1;
+                return INVALID_ARRAY_INDEX;
             }
         }
 
@@ -81,134 +81,76 @@
      * routine needs to perform quickly since all keys are tested with it.
      *
      * @param  key key to check for array index
-     * @return valid array index, or negative value if not valid
+     * @return the array index, or {@code -1} if {@code key} does not represent a valid index.
+     *         Note that negative return values other than {@code -1} are considered valid and can be converted to
+     *         the actual index using {@link #toLongIndex(int)}.
      */
-    public static int getArrayIndexNoThrow(final Object key) {
+    public static int getArrayIndex(final Object key) {
         if (key instanceof Integer) {
-            return getArrayIndexNoThrow(((Integer)key).intValue());
+            return getArrayIndex(((Integer) key).intValue());
         } else if (key instanceof Number) {
-            return getArrayIndexNoThrow(((Number)key).doubleValue());
+            return getArrayIndex(((Number) key).doubleValue());
         } else if (key instanceof String) {
-            return (int)fromString((String)key);
+            return (int)fromString((String) key);
         } else if (key instanceof ConsString) {
             return (int)fromString(key.toString());
         }
 
-        return -1;
+        return INVALID_ARRAY_INDEX;
     }
 
     /**
-     * Returns a valid array index in an int, if the object represents one
+     * Returns a valid array index in an int, if the long represents one.
      *
      * @param key key to check
-     * @return array index for key
-     * @throws InvalidArrayIndexException if not a valid array index key
+     * @return the array index, or {@code -1} if long is not a valid array index.
+     *         Note that negative return values other than {@code -1} are considered valid and can be converted to
+     *         the actual index using {@link #toLongIndex(int)}.
      */
-    public static int getArrayIndex(final Object key) throws InvalidArrayIndexException {
-        final int index = getArrayIndexNoThrow(key);
-        if (index != -1) {
-            return index;
-        }
-
-        throw new InvalidArrayIndexException(key);
-    }
-
-    /**
-     * Returns a valid array index in an int, if the long represents one
-     *
-     * @param key key to check
-     * @return valid index or a negative value if long is not a valid array index
-     */
-    public static int getArrayIndexNoThrow(final long key) {
+    public static int getArrayIndex(final long key) {
         if (key >= 0 && key <= MAX_ARRAY_INDEX) {
             return (int)key;
         }
 
-        return -1;
-    }
-
-    /**
-     * Returns a valid array index in an int, if the long represents one
-     *
-     * @param key key to check
-     * @return valid index for the long
-     * @throws InvalidArrayIndexException if long is not a valid array index
-     */
-    public static int getArrayIndex(final long key) throws InvalidArrayIndexException {
-        final int index = getArrayIndexNoThrow(key);
-        if (index != -1) {
-            return index;
-        }
-
-        throw new InvalidArrayIndexException(key);
+        return INVALID_ARRAY_INDEX;
     }
 
 
     /**
-     * Return a valid index for this double, if it represents one
+     * Return a valid index for this double, if it represents one.
      *
      * Doubles that aren't representable exactly as longs/ints aren't working
      * array indexes, however, array[1.1] === array["1.1"] in JavaScript.
      *
      * @param key the key to check
-     * @return the array index this double represents or a negative value if this isn't an index
+     * @return the array index this double represents or {@code -1} if this isn't a valid index.
+     *         Note that negative return values other than {@code -1} are considered valid and can be converted to
+     *         the actual index using {@link #toLongIndex(int)}.
      */
-    public static int getArrayIndexNoThrow(final double key) {
+    public static int getArrayIndex(final double key) {
         if (JSType.isRepresentableAsInt(key)) {
             final int intKey = (int)key;
             if (intKey >= 0) {
                 return intKey;
             }
         } else if (JSType.isRepresentableAsLong(key)) {
-            return getArrayIndexNoThrow((long)key);
+            return getArrayIndex((long) key);
         }
 
-        return -1;
-    }
-
-    /**
-     * Return a valid array index for this double, if it represents one
-     *
-     * Doubles that aren't representable exactly as longs/ints aren't working
-     * array indexes, however, array[1.1] === array["1.1"] in JavaScript.
-     *
-     * @param key the key to check
-     * @return the array index this double represents
-     * @throws InvalidArrayIndexException if this isn't an array index
-     */
-    public static int getArrayIndex(final double key) throws InvalidArrayIndexException {
-        final int index = getArrayIndexNoThrow(key);
-        if (index != -1) {
-            return index;
-        }
-
-        throw new InvalidArrayIndexException(key);
+        return INVALID_ARRAY_INDEX;
     }
 
-    /**
-     * Return a valid array index for this string, if it represents one
-     *
-     * @param key the key to check
-     * @return the array index this string represents or a negative value if this isn't an index
-     */
-    public static int getArrayIndexNoThrow(final String key) {
-        return (int)fromString(key);
-    }
 
     /**
-     * Return a valid array index for this string, if it represents one
+     * Return a valid array index for this string, if it represents one.
      *
      * @param key the key to check
-     * @return the array index this string represents
-     * @throws InvalidArrayIndexException if the string isn't an array index
+     * @return the array index this string represents or {@code -1} if this isn't a valid index.
+     *         Note that negative return values other than {@code -1} are considered valid and can be converted to
+     *         the actual index using {@link #toLongIndex(int)}.
      */
-    public static int getArrayIndex(final String key) throws InvalidArrayIndexException {
-        final int index = getArrayIndexNoThrow(key);
-        if (index != -1) {
-            return index;
-        }
-
-        throw new InvalidArrayIndexException(key);
+    public static int getArrayIndex(final String key) {
+        return (int)fromString(key);
     }
 
     /**
@@ -226,7 +168,7 @@
     /**
      * Convert an index to a long value. This basically amounts to ANDing it
      * with {@link JSType#MAX_UINT}, as the maximum array index in JavaScript
-     * is 0xffffffff
+     * is 0xfffffffe
      *
      * @param index index to convert to long form
      * @return index as uint32 in a long
@@ -236,14 +178,14 @@
     }
 
     /**
-     * Check whether a key string can be used as a valid numeric array index in
-     * JavaScript
+     * Check whether a key string represents a valid array index in JavaScript and is small enough
+     * to fit into a positive int.
      *
      * @param key the key
-     * @return true if key works as a valid numeric array index
+     * @return true if key works as a valid int array index
      */
-    public static boolean isIndexKey(final String key) {
-       return ArrayIndex.getArrayIndexNoThrow(key) >= 0;
+    public static boolean isIntArrayIndex(final String key) {
+        return getArrayIndex(key) >= 0;
     }
 }
 
diff -r 2f5434c9c9fd -r 5e4244619d79 nashorn/src/jdk/nashorn/internal/runtime/arrays/SparseArrayData.java
--- a/nashorn/src/jdk/nashorn/internal/runtime/arrays/SparseArrayData.java	Thu Jun 06 21:41:20 2013 +0530
+++ b/nashorn/src/jdk/nashorn/internal/runtime/arrays/SparseArrayData.java	Fri Jun 07 17:44:25 2013 +0200
@@ -61,13 +61,15 @@
 
     @Override
     public Object[] asObjectArray() {
-        final Object[] objArray = new Object[Math.min((int) length(), Integer.MAX_VALUE)];
+        final int length = (int) Math.min(length(), Integer.MAX_VALUE);
+        final int underlyingLength = (int) Math.min(length, underlying.length());
+        final Object[] objArray = new Object[length];
 
-        for (int i = 0; i < underlying.length(); i++) {
+        for (int i = 0; i < underlyingLength; i++) {
             objArray[i] = underlying.getObject(i);
         }
 
-        Arrays.fill(objArray, (int) underlying.length(), objArray.length, ScriptRuntime.UNDEFINED);
+        Arrays.fill(objArray, underlyingLength, length, ScriptRuntime.UNDEFINED);
 
         for (final Map.Entry<Long, Object> entry : sparseMap.entrySet()) {
             final long key = entry.getKey();
diff -r 2f5434c9c9fd -r 5e4244619d79 nashorn/src/jdk/nashorn/internal/runtime/resources/Messages.properties
--- a/nashorn/src/jdk/nashorn/internal/runtime/resources/Messages.properties	Thu Jun 06 21:41:20 2013 +0530
+++ b/nashorn/src/jdk/nashorn/internal/runtime/resources/Messages.properties	Fri Jun 07 17:44:25 2013 +0200
@@ -129,6 +129,7 @@
 type.error.env.not.object=$ENV must be an Object.
 type.error.unsupported.java.to.type=Unsupported Java.to target type {0}.
 range.error.inappropriate.array.length=inappropriate array length: {0}
+range.error.inappropriate.array.buffer.length=inappropriate array buffer length: {0}
 range.error.invalid.fraction.digits=fractionDigits argument to {0} must be in [0, 20]
 range.error.invalid.precision=precision argument toPrecision() must be in [1, 21]
 range.error.invalid.radix=radix argument must be in [2, 36]
diff -r 2f5434c9c9fd -r 5e4244619d79 nashorn/test/examples/array-micro.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nashorn/test/examples/array-micro.js	Fri Jun 07 17:44:25 2013 +0200
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   - Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 
+ *   - Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ * 
+ *   - Neither the name of Oracle nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+
+function bench(name, func) {
+    var start = Date.now();
+    for (var iter = 0; iter < 5e6; iter++) {
+        func();
+    }
+    print((Date.now() - start) + "\t" + name);
+}
+
+bench("[]", function() {
+    [];
+    [];
+    [];
+});
+
+bench("[1, 2, 3]", function() {
+    [1, 2, 3];
+    [1, 2, 3];
+    [1, 2, 3];
+});
+
+bench("[1 .. 20]", function() {
+    [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20];
+    [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20];
+    [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20];
+});
+
+bench("new Array()", function() {
+    new Array();
+    new Array();
+    new Array();
+});
+
+
+bench("new Array(1, 2, 3)", function() {
+    new Array(1, 2, 3);
+    new Array(1, 2, 3);
+    new Array(1, 2, 3);
+});
+
+bench("new Array(10)", function() {
+    new Array(10);
+    new Array(10);
+    new Array(10);
+});
+
+var array = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
+
+bench("get", function() {
+    array[0];
+    array[3];
+    array[6];
+});
+
+bench("set", function() {
+    array[0] = 0;
+    array[3] = 3;
+    array[6] = 6;
+});
+
+var all = function(e) { return true; };
+var none = function(e) { return false; };
+
+bench("filter all", function() {
+    array.filter(all);
+});
+
+bench("filter none", function() {
+    array.filter(none);
+});
+
+var up = function(a, b) { return a > b ? 1 : -1; };
+var down = function(a, b) { return a < b ? 1 : -1; };
+
+bench("sort up", function() {
+    [1, 2, 3, 4].sort(up);
+});
+
+bench("sort down", function() {
+    [1, 2, 3, 4].sort(down);
+});
+
diff -r 2f5434c9c9fd -r 5e4244619d79 nashorn/test/script/basic/JDK-8012291.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nashorn/test/script/basic/JDK-8012291.js	Fri Jun 07 17:44:25 2013 +0200
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ * 
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ * 
+ * This code 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 General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ * 
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ * 
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * JDK-8012291: NativeArray is inconsistent in using long for length and index in some places and int for the same in other places
+ *
+ * @test
+ * @run
+ */
+
+// Make sure JSON parser correctly handles large array keys
+var obj = JSON.parse('{"4294967294": 1}');
+print(obj[4294967294]);
+
+// Make sure Array.prototype.sort handles large index correctly
+obj.length = 4294967295;
+Array.prototype.sort.call(obj);
+print(obj[0]);
+print(obj[4294967294]);
+print(obj.length);
+
+var arr = [];
+arr[4294967294] = 1;
+try {
+    new Int32Array(arr);
+} catch (e) {
+    print(e);
+}
diff -r 2f5434c9c9fd -r 5e4244619d79 nashorn/test/script/basic/JDK-8012291.js.EXPECTED
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nashorn/test/script/basic/JDK-8012291.js.EXPECTED	Fri Jun 07 17:44:25 2013 +0200
@@ -0,0 +1,5 @@
+1
+1
+undefined
+4294967295
+RangeError: inappropriate array buffer length: 4294967295