diff --git a/src/ol/format/geojsonformat.js b/src/ol/format/geojsonformat.js
index 01ebe4fd1b..66fe0b0aff 100644
--- a/src/ol/format/geojsonformat.js
+++ b/src/ol/format/geojsonformat.js
@@ -505,18 +505,17 @@ ol.format.GeoJSON.prototype.writeFeatureObject = function(
   };
   var id = feature.getId();
   if (goog.isDefAndNotNull(id)) {
-    goog.object.set(object, 'id', id);
+    object['id'] = id;
   }
   var geometry = feature.getGeometry();
   if (goog.isDefAndNotNull(geometry)) {
-    goog.object.set(
-        object, 'geometry',
-        ol.format.GeoJSON.writeGeometry_(geometry, opt_options));
+    object['geometry'] =
+        ol.format.GeoJSON.writeGeometry_(geometry, opt_options);
   }
   var properties = feature.getProperties();
   goog.object.remove(properties, feature.getGeometryName());
   if (!goog.object.isEmpty(properties)) {
-    goog.object.set(object, 'properties', properties);
+    object['properties'] = properties;
   }
   return object;
 };
diff --git a/src/ol/format/gml/gml3format.js b/src/ol/format/gml/gml3format.js
index d0d879b0b6..bddcff8673 100644
--- a/src/ol/format/gml/gml3format.js
+++ b/src/ol/format/gml/gml3format.js
@@ -759,7 +759,7 @@ ol.format.GML3.prototype.RING_NODE_FACTORY_ =
   goog.asserts.assert(goog.isObject(context));
   var exteriorWritten = goog.object.get(context, 'exteriorWritten');
   if (!goog.isDef(exteriorWritten)) {
-    goog.object.set(context, 'exteriorWritten', true);
+    context['exteriorWritten'] = true;
   }
   return ol.xml.createElementNS(parentNode.namespaceURI,
       goog.isDef(exteriorWritten) ? 'interior' : 'exterior');
diff --git a/src/ol/format/gml/gmlbaseformat.js b/src/ol/format/gml/gmlbaseformat.js
index 415fe1c29c..f4cd1ce302 100644
--- a/src/ol/format/gml/gmlbaseformat.js
+++ b/src/ol/format/gml/gmlbaseformat.js
@@ -94,8 +94,8 @@ ol.format.GMLBase.prototype.readFeatures_ = function(node, objectStack) {
     if (!goog.isDef(featureType) && !goog.isNull(node.firstElementChild)) {
       var member = node.firstElementChild;
       featureType = member.nodeName.split(':').pop();
-      goog.object.set(context, 'featureType', featureType);
-      goog.object.set(context, 'featureNS', member.namespaceURI);
+      context['featureType'] = featureType;
+      context['featureNS'] = member.namespaceURI;
     }
     var parsers = {};
     var parsersNS = {};
@@ -133,8 +133,7 @@ ol.format.GMLBase.prototype.FEATURE_COLLECTION_PARSERS = Object({
 ol.format.GMLBase.prototype.readGeometryElement = function(node, objectStack) {
   var context = objectStack[0];
   goog.asserts.assert(goog.isObject(context));
-  goog.object.set(context, 'srsName',
-      node.firstElementChild.getAttribute('srsName'));
+  context['srsName'] = node.firstElementChild.getAttribute('srsName');
   var geometry = ol.xml.pushParseAndPop(/** @type {ol.geom.Geometry} */(null),
       this.GEOMETRY_PARSERS_, node, objectStack, this);
   if (goog.isDefAndNotNull(geometry)) {
diff --git a/src/ol/format/gpxformat.js b/src/ol/format/gpxformat.js
index e37220b8af..5bd9ff044c 100644
--- a/src/ol/format/gpxformat.js
+++ b/src/ol/format/gpxformat.js
@@ -98,7 +98,7 @@ ol.format.GPX.parseLink_ = function(node, objectStack) {
   var values = /** @type {Object} */ (objectStack[objectStack.length - 1]);
   var href = node.getAttribute('href');
   if (!goog.isNull(href)) {
-    goog.object.set(values, 'link', href);
+    values['link'] = href;
   }
   ol.xml.parseNode(ol.format.GPX.LINK_PARSERS_, node, objectStack);
 };
@@ -113,7 +113,7 @@ ol.format.GPX.parseExtensions_ = function(node, objectStack) {
   goog.asserts.assert(node.nodeType == goog.dom.NodeType.ELEMENT);
   goog.asserts.assert(node.localName == 'extensions');
   var values = /** @type {Object} */ (objectStack[objectStack.length - 1]);
-  goog.object.set(values, 'extensionsNode_', node);
+  values['extensionsNode_'] = node;
 };
 
 
@@ -559,16 +559,16 @@ ol.format.GPX.writeWptType_ = function(node, coordinate, objectStack) {
   switch (geometryLayout) {
     case ol.geom.GeometryLayout.XYZM:
       if (coordinate[3] !== 0) {
-        goog.object.set(properties, 'time', coordinate[3]);
+        properties['time'] = coordinate[3];
       }
     case ol.geom.GeometryLayout.XYZ:
       if (coordinate[2] !== 0) {
-        goog.object.set(properties, 'ele', coordinate[2]);
+        properties['ele'] = coordinate[2];
       }
       break;
     case ol.geom.GeometryLayout.XYM:
       if (coordinate[2] !== 0) {
-        goog.object.set(properties, 'time', coordinate[2]);
+        properties['time'] = coordinate[2];
       }
   }
   /* jshint +W086 */
@@ -596,8 +596,8 @@ ol.format.GPX.writeRte_ = function(node, feature, objectStack) {
     goog.asserts.assertInstanceof(geometry, ol.geom.LineString);
     geometry = /** @type {ol.geom.LineString} */
         (ol.format.Feature.transformWithOptions(geometry, true, options));
-    goog.object.set(context, 'geometryLayout', geometry.getLayout());
-    goog.object.set(properties, 'rtept', geometry.getCoordinates());
+    context['geometryLayout'] = geometry.getLayout();
+    properties['rtept'] = geometry.getCoordinates();
   }
   var parentNode = objectStack[objectStack.length - 1].node;
   var orderedKeys = ol.format.GPX.RTE_SEQUENCE_[parentNode.namespaceURI];
@@ -623,7 +623,7 @@ ol.format.GPX.writeTrk_ = function(node, feature, objectStack) {
     goog.asserts.assertInstanceof(geometry, ol.geom.MultiLineString);
     geometry = /** @type {ol.geom.MultiLineString} */
         (ol.format.Feature.transformWithOptions(geometry, true, options));
-    goog.object.set(properties, 'trkseg', geometry.getLineStrings());
+    properties['trkseg'] = geometry.getLineStrings();
   }
   var parentNode = objectStack[objectStack.length - 1].node;
   var orderedKeys = ol.format.GPX.TRK_SEQUENCE_[parentNode.namespaceURI];
@@ -659,13 +659,13 @@ ol.format.GPX.writeWpt_ = function(node, feature, objectStack) {
   var options = /** @type {olx.format.WriteOptions} */ (objectStack[0]);
   var context = objectStack[objectStack.length - 1];
   goog.asserts.assert(goog.isObject(context));
-  goog.object.set(context, 'properties', feature.getProperties());
+  context['properties'] = feature.getProperties();
   var geometry = feature.getGeometry();
   if (goog.isDef(geometry)) {
     goog.asserts.assertInstanceof(geometry, ol.geom.Point);
     geometry = /** @type {ol.geom.Point} */
         (ol.format.Feature.transformWithOptions(geometry, true, options));
-    goog.object.set(context, 'geometryLayout', geometry.getLayout());
+    context['geometryLayout'] = geometry.getLayout();
     ol.format.GPX.writeWptType_(node, geometry.getCoordinates(), objectStack);
   }
 };
diff --git a/src/ol/format/kmlformat.js b/src/ol/format/kmlformat.js
index 36114a3825..0669da76b9 100644
--- a/src/ol/format/kmlformat.js
+++ b/src/ol/format/kmlformat.js
@@ -539,7 +539,7 @@ ol.format.KML.IconStyleParser_ = function(node, objectStack) {
     size: size,
     src: src
   });
-  goog.object.set(styleObject, 'imageStyle', imageStyle);
+  styleObject['imageStyle'] = imageStyle;
 };
 
 
@@ -567,7 +567,7 @@ ol.format.KML.LabelStyleParser_ = function(node, objectStack) {
     scale: /** @type {number|undefined} */
         (goog.object.get(object, 'scale'))
   });
-  goog.object.set(styleObject, 'textStyle', textStyle);
+  styleObject['textStyle'] = textStyle;
 };
 
 
@@ -596,7 +596,7 @@ ol.format.KML.LineStyleParser_ = function(node, objectStack) {
         (goog.object.get(object, 'color', ol.format.KML.DEFAULT_COLOR_)),
     width: /** @type {number} */ (goog.object.get(object, 'width', 1))
   });
-  goog.object.set(styleObject, 'strokeStyle', strokeStyle);
+  styleObject['strokeStyle'] = strokeStyle;
 };
 
 
@@ -620,15 +620,15 @@ ol.format.KML.PolyStyleParser_ = function(node, objectStack) {
     color: /** @type {ol.Color} */
         (goog.object.get(object, 'color', ol.format.KML.DEFAULT_COLOR_))
   });
-  goog.object.set(styleObject, 'fillStyle', fillStyle);
+  styleObject['fillStyle'] = fillStyle;
   var fill = /** @type {boolean|undefined} */ (goog.object.get(object, 'fill'));
   if (goog.isDef(fill)) {
-    goog.object.set(styleObject, 'fill', fill);
+    styleObject['fill'] = fill;
   }
   var outline =
       /** @type {boolean|undefined} */ (goog.object.get(object, 'outline'));
   if (goog.isDef(outline)) {
-    goog.object.set(styleObject, 'outline', outline);
+    styleObject['outline'] = outline;
   }
 };
 
@@ -985,7 +985,7 @@ ol.format.KML.DataParser_ = function(node, objectStack) {
       var featureObject =
           /** @type {Object} */ (objectStack[objectStack.length - 1]);
       goog.asserts.assert(goog.isObject(featureObject));
-      goog.object.set(featureObject, name, data);
+      featureObject[name] = data;
     }
   }
 };
@@ -1048,9 +1048,9 @@ ol.format.KML.PlacemarkStyleMapParser_ = function(node, objectStack) {
   var placemarkObject = objectStack[objectStack.length - 1];
   goog.asserts.assert(goog.isObject(placemarkObject));
   if (goog.isArray(styleMapValue)) {
-    goog.object.set(placemarkObject, 'Style', styleMapValue);
+    placemarkObject['Style'] = styleMapValue;
   } else if (goog.isString(styleMapValue)) {
-    goog.object.set(placemarkObject, 'styleUrl', styleMapValue);
+    placemarkObject['styleUrl'] = styleMapValue;
   } else {
     goog.asserts.fail();
   }
@@ -1082,7 +1082,7 @@ ol.format.KML.SimpleDataParser_ = function(node, objectStack) {
     var data = ol.format.XSD.readString(node);
     var featureObject =
         /** @type {Object} */ (objectStack[objectStack.length - 1]);
-    goog.object.set(featureObject, name, data);
+    featureObject[name] = data;
   }
 };
 
@@ -1851,16 +1851,15 @@ ol.format.KML.writeIconStyle_ = function(node, style, objectStack) {
   };
 
   if (!goog.isNull(size)) {
-    goog.object.set(iconProperties, 'w', size[0]);
-    goog.object.set(iconProperties, 'h', size[1]);
+    iconProperties['w'] = size[0];
+    iconProperties['h'] = size[1];
     var anchor = style.getAnchor(); // top-left
     var origin = style.getOrigin(); // top-left
 
     if (!goog.isNull(origin) && !goog.isNull(iconImageSize) &&
         origin[0] !== 0 && origin[1] !== size[1]) {
-      goog.object.set(iconProperties, 'x', origin[0]);
-      goog.object.set(iconProperties, 'y',
-          iconImageSize[1] - (origin[1] + size[1]));
+      iconProperties['x'] = origin[0];
+      iconProperties['y'] = iconImageSize[1] - (origin[1] + size[1]);
     }
 
     if (!goog.isNull(anchor) &&
@@ -1871,20 +1870,20 @@ ol.format.KML.writeIconStyle_ = function(node, style, objectStack) {
         y: size[1] - anchor[1],
         yunits: ol.style.IconAnchorUnits.PIXELS
       };
-      goog.object.set(properties, 'hotSpot', hotSpot);
+      properties['hotSpot'] = hotSpot;
     }
   }
 
-  goog.object.set(properties, 'Icon', iconProperties);
+  properties['Icon'] = iconProperties;
 
   var scale = style.getScale();
   if (scale !== 1) {
-    goog.object.set(properties, 'scale', scale);
+    properties['scale'] = scale;
   }
 
   var rotation = style.getRotation();
   if (rotation !== 0) {
-    goog.object.set(properties, 'heading', rotation); // 0-360
+    properties['heading'] = rotation; // 0-360
   }
 
   var parentNode = objectStack[objectStack.length - 1].node;
@@ -1906,11 +1905,11 @@ ol.format.KML.writeLabelStyle_ = function(node, style, objectStack) {
   var properties = {};
   var fill = style.getFill();
   if (!goog.isNull(fill)) {
-    goog.object.set(properties, 'color', fill.getColor());
+    properties['color'] = fill.getColor();
   }
   var scale = style.getScale();
   if (goog.isDef(scale) && scale !== 1) {
-    goog.object.set(properties, 'scale', scale);
+    properties['scale'] = scale;
   }
   var parentNode = objectStack[objectStack.length - 1].node;
   var orderedKeys =
@@ -2019,10 +2018,10 @@ ol.format.KML.writePlacemark_ = function(node, feature, objectStack) {
     // resolution-independent here
     var styles = styleFunction.call(feature, 0);
     if (!goog.isNull(styles) && styles.length > 0) {
-      goog.object.set(properties, 'Style', styles[0]);
+      properties['Style'] = styles[0];
       var textStyle = styles[0].getText();
       if (!goog.isNull(textStyle)) {
-        goog.object.set(properties, 'name', textStyle.getText());
+        properties['name'] = textStyle.getText();
       }
     }
   }
@@ -2057,8 +2056,8 @@ ol.format.KML.writePrimitiveGeometry_ = function(node, geometry, objectStack) {
       (geometry instanceof ol.geom.LinearRing));
   var flatCoordinates = geometry.getFlatCoordinates();
   var /** @type {ol.xml.NodeStackItem} */ context = {node: node};
-  goog.object.set(context, 'layout', geometry.getLayout());
-  goog.object.set(context, 'stride', geometry.getStride());
+  context['layout'] = geometry.getLayout();
+  context['stride'] = geometry.getStride();
   ol.xml.pushSerializeAndPop(context,
       ol.format.KML.PRIMITIVE_GEOMETRY_SERIALIZERS_,
       ol.format.KML.COORDINATES_NODE_FACTORY_,
@@ -2128,16 +2127,16 @@ ol.format.KML.writeStyle_ = function(node, style, objectStack) {
   var imageStyle = style.getImage();
   var textStyle = style.getText();
   if (!goog.isNull(imageStyle)) {
-    goog.object.set(properties, 'IconStyle', imageStyle);
+    properties['IconStyle'] = imageStyle;
   }
   if (!goog.isNull(textStyle)) {
-    goog.object.set(properties, 'LabelStyle', textStyle);
+    properties['LabelStyle'] = textStyle;
   }
   if (!goog.isNull(strokeStyle)) {
-    goog.object.set(properties, 'LineStyle', strokeStyle);
+    properties['LineStyle'] = strokeStyle;
   }
   if (!goog.isNull(fillStyle)) {
-    goog.object.set(properties, 'PolyStyle', fillStyle);
+    properties['PolyStyle'] = fillStyle;
   }
   var parentNode = objectStack[objectStack.length - 1].node;
   var orderedKeys = ol.format.KML.STYLE_SEQUENCE_[parentNode.namespaceURI];
@@ -2608,9 +2607,9 @@ ol.format.KML.prototype.writeFeaturesNode = function(features, opt_options) {
   var /** @type {ol.xml.NodeStackItem} */ context = {node: kml};
   var properties = {};
   if (features.length > 1) {
-    goog.object.set(properties, 'Document', features);
+    properties['Document'] = features;
   } else if (features.length == 1) {
-    goog.object.set(properties, 'Placemark', features[0]);
+    properties['Placemark'] = features[0];
   }
   var orderedKeys = ol.format.KML.KML_SEQUENCE_[kml.namespaceURI];
   var values = ol.xml.makeSequence(properties, orderedKeys);
diff --git a/src/ol/format/osmxmlformat.js b/src/ol/format/osmxmlformat.js
index ebc332de4f..12d73bbc57 100644
--- a/src/ol/format/osmxmlformat.js
+++ b/src/ol/format/osmxmlformat.js
@@ -67,7 +67,7 @@ ol.format.OSMXML.readNode_ = function(node, objectStack) {
     parseFloat(node.getAttribute('lon')),
     parseFloat(node.getAttribute('lat'))
   ]);
-  goog.object.set(state.nodes, id, coordinates);
+  state.nodes[id] = coordinates;
 
   var values = ol.xml.pushParseAndPop({
     tags: {}
@@ -145,7 +145,7 @@ ol.format.OSMXML.readTag_ = function(node, objectStack) {
   goog.asserts.assert(node.nodeType == goog.dom.NodeType.ELEMENT);
   goog.asserts.assert(node.localName == 'tag');
   var values = /** @type {Object} */ (objectStack[objectStack.length - 1]);
-  goog.object.set(values.tags, node.getAttribute('k'), node.getAttribute('v'));
+  values.tags[node.getAttribute('k')] = node.getAttribute('v');
 };
 
 
diff --git a/src/ol/format/owsformat.js b/src/ol/format/owsformat.js
index 5a4e5d48a6..5397db21b3 100644
--- a/src/ol/format/owsformat.js
+++ b/src/ol/format/owsformat.js
@@ -148,7 +148,7 @@ ol.format.OWS.readGet_ = function(node, objectStack) {
   }
   var get = goog.object.get(object, 'get');
   if (!goog.isDef(get)) {
-    goog.object.set(object, 'get', [value]);
+    object['get'] = [value];
   }else {
     goog.asserts.assert(goog.isArray(get));
     get.push(value);
@@ -189,7 +189,7 @@ ol.format.OWS.readOperation_ = function(node, objectStack) {
   var object = /** @type {Object} */
       (objectStack[objectStack.length - 1]);
   goog.asserts.assert(goog.isObject(object));
-  goog.object.set(object, name, value);
+  object[name] = value;
 
 };
 
@@ -285,7 +285,7 @@ ol.format.OWS.readValue_ = function(node, objectStack) {
   if (!goog.isDef(key)) {
     return undefined;
   }
-  goog.object.set(object, key, true);
+  object[key] = true;
 };
 
 
diff --git a/src/ol/format/wfsformat.js b/src/ol/format/wfsformat.js
index f007bed4a7..88e9311e45 100644
--- a/src/ol/format/wfsformat.js
+++ b/src/ol/format/wfsformat.js
@@ -220,7 +220,7 @@ ol.format.WFS.prototype.readFeatureCollectionMetadataFromNode = function(node) {
   var result = {};
   var value = ol.format.XSD.readNonNegativeIntegerString(
       node.getAttribute('numberOfFeatures'));
-  goog.object.set(result, 'numberOfFeatures', value);
+  result['numberOfFeatures'] = value;
   return ol.xml.pushParseAndPop(
       /** @type {ol.format.WFS.FeatureCollectionMetadata} */ (result),
       ol.format.WFS.FEATURE_COLLECTION_PARSERS_, node, [], this.gmlFormat_);
diff --git a/src/ol/format/wmscapabilitiesformat.js b/src/ol/format/wmscapabilitiesformat.js
index a3d9be5ffc..83c668238e 100644
--- a/src/ol/format/wmscapabilitiesformat.js
+++ b/src/ol/format/wmscapabilitiesformat.js
@@ -282,43 +282,41 @@ ol.format.WMSCapabilities.readLayer_ = function(node, objectStack) {
   if (!goog.isDef(queryable)) {
     queryable = goog.object.get(parentLayerObject, 'queryable');
   }
-  goog.object.set(
-      layerObject, 'queryable', goog.isDef(queryable) ? queryable : false);
+  layerObject['queryable'] = goog.isDef(queryable) ? queryable : false;
 
   var cascaded = ol.format.XSD.readNonNegativeIntegerString(
       node.getAttribute('cascaded'));
   if (!goog.isDef(cascaded)) {
     cascaded = goog.object.get(parentLayerObject, 'cascaded');
   }
-  goog.object.set(layerObject, 'cascaded', cascaded);
+  layerObject['cascaded'] = cascaded;
 
   var opaque = ol.format.XSD.readBooleanString(node.getAttribute('opaque'));
   if (!goog.isDef(opaque)) {
     opaque = goog.object.get(parentLayerObject, 'opaque');
   }
-  goog.object.set(layerObject, 'opaque', goog.isDef(opaque) ? opaque : false);
+  layerObject['opaque'] = goog.isDef(opaque) ? opaque : false;
 
   var noSubsets =
       ol.format.XSD.readBooleanString(node.getAttribute('noSubsets'));
   if (!goog.isDef(noSubsets)) {
     noSubsets = goog.object.get(parentLayerObject, 'noSubsets');
   }
-  goog.object.set(
-      layerObject, 'noSubsets', goog.isDef(noSubsets) ? noSubsets : false);
+  layerObject['noSubsets'] = goog.isDef(noSubsets) ? noSubsets : false;
 
   var fixedWidth =
       ol.format.XSD.readDecimalString(node.getAttribute('fixedWidth'));
   if (!goog.isDef(fixedWidth)) {
     fixedWidth = goog.object.get(parentLayerObject, 'fixedWidth');
   }
-  goog.object.set(layerObject, 'fixedWidth', fixedWidth);
+  layerObject['fixedWidth'] = fixedWidth;
 
   var fixedHeight =
       ol.format.XSD.readDecimalString(node.getAttribute('fixedHeight'));
   if (!goog.isDef(fixedHeight)) {
     fixedHeight = goog.object.get(parentLayerObject, 'fixedHeight');
   }
-  goog.object.set(layerObject, 'fixedHeight', fixedHeight);
+  layerObject['fixedHeight'] = fixedHeight;
 
   // See 7.2.4.8
   var addKeys = ['Style', 'CRS', 'AuthorityURL'];
@@ -327,7 +325,7 @@ ol.format.WMSCapabilities.readLayer_ = function(node, objectStack) {
     if (goog.isDef(parentValue)) {
       var childValue = goog.object.setIfUndefined(layerObject, key, []);
       childValue = childValue.concat(parentValue);
-      goog.object.set(layerObject, key, childValue);
+      layerObject[key] = childValue;
     }
   });
 
@@ -337,7 +335,7 @@ ol.format.WMSCapabilities.readLayer_ = function(node, objectStack) {
     var childValue = goog.object.get(layerObject, key);
     if (!goog.isDef(childValue)) {
       var parentValue = goog.object.get(parentLayerObject, key);
-      goog.object.set(layerObject, key, parentValue);
+      layerObject[key] = parentValue;
     }
   });
 
@@ -456,7 +454,7 @@ ol.format.WMSCapabilities.readSizedFormatOnlineresource_ =
       ol.format.XSD.readNonNegativeIntegerString(node.getAttribute('width')),
       ol.format.XSD.readNonNegativeIntegerString(node.getAttribute('height'))
     ];
-    goog.object.set(formatOnlineresource, 'size', size);
+    formatOnlineresource['size'] = size;
     return formatOnlineresource;
   }
   return undefined;
@@ -475,7 +473,7 @@ ol.format.WMSCapabilities.readAuthorityURL_ = function(node, objectStack) {
   var authorityObject =
       ol.format.WMSCapabilities.readFormatOnlineresource_(node, objectStack);
   if (goog.isDef(authorityObject)) {
-    goog.object.set(authorityObject, 'name', node.getAttribute('name'));
+    authorityObject['name'] = node.getAttribute('name');
     return authorityObject;
   }
   return undefined;
@@ -494,7 +492,7 @@ ol.format.WMSCapabilities.readMetadataURL_ = function(node, objectStack) {
   var metadataObject =
       ol.format.WMSCapabilities.readFormatOnlineresource_(node, objectStack);
   if (goog.isDef(metadataObject)) {
-    goog.object.set(metadataObject, 'type', node.getAttribute('type'));
+    metadataObject['type'] = node.getAttribute('type');
     return metadataObject;
   }
   return undefined;
diff --git a/src/ol/format/wmsgetfeatureinfoformat.js b/src/ol/format/wmsgetfeatureinfoformat.js
index 0d928189e4..567680056c 100644
--- a/src/ol/format/wmsgetfeatureinfoformat.js
+++ b/src/ol/format/wmsgetfeatureinfoformat.js
@@ -90,8 +90,8 @@ ol.format.WMSGetFeatureInfo.prototype.readFeatures_ =
           ol.format.WMSGetFeatureInfo.layerIdentifier_) +
           ol.format.WMSGetFeatureInfo.featureIdentifier_;
 
-      goog.object.set(context, 'featureType', featureType);
-      goog.object.set(context, 'featureNS', this.featureNS_);
+      context['featureType'] = featureType;
+      context['featureNS'] = this.featureNS_;
 
       var parsers = {};
       parsers[featureType] = ol.xml.makeArrayPusher(
diff --git a/src/ol/geom/flat/geodesicflatgeom.js b/src/ol/geom/flat/geodesicflatgeom.js
index 53d3aa8925..48403f93bb 100644
--- a/src/ol/geom/flat/geodesicflatgeom.js
+++ b/src/ol/geom/flat/geodesicflatgeom.js
@@ -37,7 +37,7 @@ ol.geom.flat.geodesic.line_ =
   /** @type {Array.<number>} */
   var fractionStack = [1, 0];
 
-  /** @type {Object.<number, boolean>} */
+  /** @type {Object.<string, boolean>} */
   var fractions = {};
 
   var maxIterations = 1e5;
@@ -52,7 +52,7 @@ ol.geom.flat.geodesic.line_ =
     key = fracA.toString();
     if (!goog.object.containsKey(fractions, key)) {
       flatCoordinates.push(a[0], a[1]);
-      goog.object.set(fractions, key, true);
+      fractions[key] = true;
     }
     // Pop the b coordinate off the stack
     fracB = fractionStack.pop();
@@ -70,7 +70,7 @@ ol.geom.flat.geodesic.line_ =
       flatCoordinates.push(b[0], b[1]);
       key = fracB.toString();
       goog.asserts.assert(!goog.object.containsKey(fractions, key));
-      goog.object.set(fractions, key, true);
+      fractions[key] = true;
     } else {
       // Otherwise, we need to subdivide the current line segment.  Split it
       // into two and push the two line segments onto the stack.
diff --git a/src/ol/pointer/mousesource.js b/src/ol/pointer/mousesource.js
index 9aa1ffa21a..b1f9dd6856 100644
--- a/src/ol/pointer/mousesource.js
+++ b/src/ol/pointer/mousesource.js
@@ -169,8 +169,7 @@ ol.pointer.MouseSource.prototype.mousedown = function(inEvent) {
       this.cancel(inEvent);
     }
     var e = ol.pointer.MouseSource.prepareEvent(inEvent, this.dispatcher);
-    goog.object.set(this.pointerMap,
-        ol.pointer.MouseSource.POINTER_ID.toString(), inEvent);
+    this.pointerMap[ol.pointer.MouseSource.POINTER_ID.toString()] = inEvent;
     this.dispatcher.down(e, inEvent);
   }
 };
diff --git a/src/ol/pointer/mssource.js b/src/ol/pointer/mssource.js
index 4df40d3350..bbf17e9713 100644
--- a/src/ol/pointer/mssource.js
+++ b/src/ol/pointer/mssource.js
@@ -108,8 +108,7 @@ ol.pointer.MsSource.prototype.cleanup = function(pointerId) {
  * @param {goog.events.BrowserEvent} inEvent
  */
 ol.pointer.MsSource.prototype.msPointerDown = function(inEvent) {
-  goog.object.set(this.pointerMap,
-      inEvent.getBrowserEvent().pointerId, inEvent);
+  this.pointerMap[inEvent.getBrowserEvent().pointerId] = inEvent;
   var e = this.prepareEvent_(inEvent);
   this.dispatcher.down(e, inEvent);
 };
diff --git a/src/ol/pointer/touchsource.js b/src/ol/pointer/touchsource.js
index 7e3d4c08fc..80e3188781 100644
--- a/src/ol/pointer/touchsource.js
+++ b/src/ol/pointer/touchsource.js
@@ -312,11 +312,11 @@ ol.pointer.TouchSource.prototype.touchstart = function(inEvent) {
  * @param {Object} inPointer
  */
 ol.pointer.TouchSource.prototype.overDown_ = function(browserEvent, inPointer) {
-  goog.object.set(this.pointerMap, inPointer.pointerId, {
+  this.pointerMap[inPointer.pointerId] = {
     target: inPointer.target,
     out: inPointer,
     outTarget: inPointer.target
-  });
+  };
   this.dispatcher.over(inPointer, browserEvent);
   this.dispatcher.enter(inPointer, browserEvent);
   this.dispatcher.down(inPointer, browserEvent);
diff --git a/src/ol/render/webgl/webglreplay.js b/src/ol/render/webgl/webglreplay.js
index 6878500849..2e7d42ee7a 100644
--- a/src/ol/render/webgl/webglreplay.js
+++ b/src/ol/render/webgl/webglreplay.js
@@ -465,7 +465,7 @@ ol.render.webgl.ImageReplay.prototype.finish = function(context) {
           goog.webgl.TEXTURE_MAG_FILTER, goog.webgl.LINEAR);
       gl.texImage2D(goog.webgl.TEXTURE_2D, 0, goog.webgl.RGBA, goog.webgl.RGBA,
           goog.webgl.UNSIGNED_BYTE, image);
-      goog.object.set(texturePerImage, uid, texture);
+      texturePerImage[uid] = texture;
     }
     this.textures_[i] = texture;
   }
diff --git a/src/ol/source/clustersource.js b/src/ol/source/clustersource.js
index cb5225c4ea..4d700db961 100644
--- a/src/ol/source/clustersource.js
+++ b/src/ol/source/clustersource.js
@@ -117,7 +117,7 @@ ol.source.Cluster.prototype.cluster_ = function() {
       neighbors = goog.array.filter(neighbors, function(neighbor) {
         var uid = goog.getUid(neighbor).toString();
         if (!goog.object.containsKey(clustered, uid)) {
-          goog.object.set(clustered, uid, true);
+          clustered[uid] = true;
           return true;
         } else {
           return false;
diff --git a/src/ol/source/imagewmssource.js b/src/ol/source/imagewmssource.js
index 4ba801d895..08d5e94939 100644
--- a/src/ol/source/imagewmssource.js
+++ b/src/ol/source/imagewmssource.js
@@ -158,8 +158,8 @@ ol.source.ImageWMS.prototype.getGetFeatureInfoUrl =
 
   var x = Math.floor((coordinate[0] - extent[0]) / resolution);
   var y = Math.floor((extent[3] - coordinate[1]) / resolution);
-  goog.object.set(baseParams, this.v13_ ? 'I' : 'X', x);
-  goog.object.set(baseParams, this.v13_ ? 'J' : 'Y', y);
+  baseParams[this.v13_ ? 'I' : 'X'] = x;
+  baseParams[this.v13_ ? 'J' : 'Y'] = y;
 
   return this.getRequestUrl_(
       extent, ol.source.ImageWMS.GETFEATUREINFO_IMAGE_SIZE_,
@@ -270,7 +270,7 @@ ol.source.ImageWMS.prototype.getRequestUrl_ =
 
   if (!('STYLES' in this.params_)) {
     /* jshint -W053 */
-    goog.object.set(params, 'STYLES', new String(''));
+    params['STYLES'] = new String('');
     /* jshint +W053 */
   }
 
@@ -278,14 +278,14 @@ ol.source.ImageWMS.prototype.getRequestUrl_ =
     switch (this.serverType_) {
       case ol.source.wms.ServerType.GEOSERVER:
         var dpi = (90 * pixelRatio + 0.5) | 0;
-        goog.object.set(params, 'FORMAT_OPTIONS', 'dpi:' + dpi);
+        params['FORMAT_OPTIONS'] = 'dpi:' + dpi;
         break;
       case ol.source.wms.ServerType.MAPSERVER:
-        goog.object.set(params, 'MAP_RESOLUTION', 90 * pixelRatio);
+        params['MAP_RESOLUTION'] = 90 * pixelRatio;
         break;
       case ol.source.wms.ServerType.CARMENTA_SERVER:
       case ol.source.wms.ServerType.QGIS:
-        goog.object.set(params, 'DPI', 90 * pixelRatio);
+        params['DPI'] = 90 * pixelRatio;
         break;
       default:
         goog.asserts.fail();
@@ -293,8 +293,8 @@ ol.source.ImageWMS.prototype.getRequestUrl_ =
     }
   }
 
-  goog.object.set(params, 'WIDTH', size[0]);
-  goog.object.set(params, 'HEIGHT', size[1]);
+  params['WIDTH'] = size[0];
+  params['HEIGHT'] = size[1];
 
   var axisOrientation = projection.getAxisOrientation();
   var bbox;
@@ -303,7 +303,7 @@ ol.source.ImageWMS.prototype.getRequestUrl_ =
   } else {
     bbox = extent;
   }
-  goog.object.set(params, 'BBOX', bbox.join(','));
+  params['BBOX'] = bbox.join(',');
 
   return goog.uri.utils.appendParamsFromMap(this.url_, params);
 };
diff --git a/src/ol/source/tilewmssource.js b/src/ol/source/tilewmssource.js
index fd227e9a6d..5e4edb0b0f 100644
--- a/src/ol/source/tilewmssource.js
+++ b/src/ol/source/tilewmssource.js
@@ -168,8 +168,8 @@ ol.source.TileWMS.prototype.getGetFeatureInfoUrl =
   var x = Math.floor((coordinate[0] - tileExtent[0]) / tileResolution);
   var y = Math.floor((tileExtent[3] - coordinate[1]) / tileResolution);
 
-  goog.object.set(baseParams, this.v13_ ? 'I' : 'X', x);
-  goog.object.set(baseParams, this.v13_ ? 'J' : 'Y', y);
+  baseParams[this.v13_ ? 'I' : 'X'] = x;
+  baseParams[this.v13_ ? 'J' : 'Y'] = y;
 
   return this.getRequestUrl_(tileCoord, tileSize, tileExtent,
       1, projectionObj, baseParams);
@@ -222,14 +222,14 @@ ol.source.TileWMS.prototype.getRequestUrl_ =
     return undefined;
   }
 
-  goog.object.set(params, 'WIDTH', tileSize);
-  goog.object.set(params, 'HEIGHT', tileSize);
+  params['WIDTH'] = tileSize;
+  params['HEIGHT'] = tileSize;
 
   params[this.v13_ ? 'CRS' : 'SRS'] = projection.getCode();
 
   if (!('STYLES' in this.params_)) {
     /* jshint -W053 */
-    goog.object.set(params, 'STYLES', new String(''));
+    params['STYLES'] = new String('');
     /* jshint +W053 */
   }
 
@@ -237,14 +237,14 @@ ol.source.TileWMS.prototype.getRequestUrl_ =
     switch (this.serverType_) {
       case ol.source.wms.ServerType.GEOSERVER:
         var dpi = (90 * pixelRatio + 0.5) | 0;
-        goog.object.set(params, 'FORMAT_OPTIONS', 'dpi:' + dpi);
+        params['FORMAT_OPTIONS'] = 'dpi:' + dpi;
         break;
       case ol.source.wms.ServerType.MAPSERVER:
-        goog.object.set(params, 'MAP_RESOLUTION', 90 * pixelRatio);
+        params['MAP_RESOLUTION'] = 90 * pixelRatio;
         break;
       case ol.source.wms.ServerType.CARMENTA_SERVER:
       case ol.source.wms.ServerType.QGIS:
-        goog.object.set(params, 'DPI', 90 * pixelRatio);
+        params['DPI'] = 90 * pixelRatio;
         break;
       default:
         goog.asserts.fail();
@@ -263,7 +263,7 @@ ol.source.TileWMS.prototype.getRequestUrl_ =
     bbox[2] = tileExtent[3];
     bbox[3] = tmp;
   }
-  goog.object.set(params, 'BBOX', bbox.join(','));
+  params['BBOX'] = bbox.join(',');
 
   var url;
   if (urls.length == 1) {
diff --git a/src/ol/xml.js b/src/ol/xml.js
index 8f7662da4d..5f2a92b42d 100644
--- a/src/ol/xml.js
+++ b/src/ol/xml.js
@@ -473,7 +473,7 @@ ol.xml.makeObjectPropertySetter =
           var property = goog.isDef(opt_property) ?
               opt_property : node.localName;
           goog.asserts.assert(goog.isObject(object));
-          goog.object.set(object, property, value);
+          object[property] = value;
         }
       });
 };
@@ -535,8 +535,8 @@ ol.xml.makeArraySerializer = function(nodeWriter, opt_this) {
     if (!goog.isDef(serializersNS)) {
       serializersNS = {};
       var serializers = {};
-      goog.object.set(serializers, node.localName, nodeWriter);
-      goog.object.set(serializersNS, node.namespaceURI, serializers);
+      serializers[node.localName] = nodeWriter;
+      serializersNS[node.namespaceURI] = serializers;
       nodeFactory = ol.xml.makeSimpleNodeFactory(node.localName);
     }
     ol.xml.serialize(serializersNS, nodeFactory, value, objectStack);