protected Object createInstance() 
{
		if (this.sourceMap == null) {
			throw new IllegalArgumentException("'sourceMap' is required");
		}
		Map result = null;
		if (this.targetMapClass != null) {
			result = (Map) BeanUtils.instantiateClass(this.targetMapClass);
		}
		else {
			result = new LinkedHashMap(this.sourceMap.size());
		}
		Class keyType = null;
		Class valueType = null;
		if (this.targetMapClass != null && JdkVersion.isAtLeastJava15()) {
			keyType = GenericCollectionTypeResolver.getMapKeyType(this.targetMapClass);
			valueType = GenericCollectionTypeResolver.getMapValueType(this.targetMapClass);
		}
		if (keyType != null || valueType != null) {
			TypeConverter converter = getBeanTypeConverter();
			for (Iterator it = this.sourceMap.entrySet().iterator(); it.hasNext();) {
				Map.Entry entry = (Map.Entry) it.next();
				Object convertedKey = converter.convertIfNecessary(entry.getKey(), keyType);
				Object convertedValue = converter.convertIfNecessary(entry.getValue(), valueType);
				result.put(convertedKey, convertedValue);
			}
		}
		else {
			result.putAll(this.sourceMap);
		}
		return result;
}

 public Class getObjectType() 
{
		return Map.class;
}

 public  void setSourceMap(Map sourceMap) 
{
		this.sourceMap = sourceMap;
}

Set the source Map, typically populated via XML "map" elements.

 public  void setTargetMapClass(Class targetMapClass) 
{
		if (targetMapClass == null) {
			throw new IllegalArgumentException("'targetMapClass' must not be null");
		}
		if (!Map.class.isAssignableFrom(targetMapClass)) {
			throw new IllegalArgumentException("'targetMapClass' must implement [java.util.Map]");
		}
		this.targetMapClass = targetMapClass;
}

Set the class to use for the target Map. Can be populated with a fully qualified class name when defined in a Spring application context.

Default is a linked HashMap, keeping the registration order.