check for undefined in putProperty.
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@ -249,7 +249,7 @@ public class ESNode extends ObjectPrototype {
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return;
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return;
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}
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}
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if (propertyValue instanceof ESNull)
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if (propertyValue instanceof ESNull || propertyValue instanceof ESUndefined)
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node.unset (propertyName);
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node.unset (propertyName);
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else if (propertyValue instanceof ESString)
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else if (propertyValue instanceof ESString)
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node.setString (propertyName, propertyValue.toString ());
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node.setString (propertyName, propertyValue.toString ());
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