src/main/java/org/eiichiro/bootleg/AbstractRequest.java
protected Object convertUserDefinedValueType(Object object, Class<?> type) {
		if (type.isAssignableFrom(object.getClass())) {
			return object;
		} else if (object instanceof String) {
			try {
				Constructor<?> constructor = type.getConstructor(String.class);
				return constructor.newInstance(object);
			} catch (Exception e) {
				logger.debug("Cannot invoke [public " + type.getName() 
						+ "(String.class)] constrcutor on [" + type + "]", e);
			}
			
			try {
				return type.getMethod("valueOf", String.class).invoke(null, object);
			} catch (Exception e1) {
				logger.debug("Cannot invoke [public static " 
						+ type.getName() + ".valueOf(String.class)]" 
						+ "method on [" + type + "]", e1);
			}
			
		} else {
			logger.warn("Parameter [" + object
					+ "] cannot be converted to [" + type + "]");
		}
		
		return null;
	}
protected Object convertUserDefinedValueType(Object object, Class<?> type) {
		if (type.isAssignableFrom(object.getClass())) {
			return object;
		} else if (object instanceof String) {
			try {
				Constructor<?> constructor = type.getConstructor(String.class);
				return constructor.newInstance(object);
			} catch (Exception e) {
				logger.debug("Cannot invoke [public " + type.getName() 
						+ "(String.class)] constrcutor on [" + type + "]", e);
			}
			
			try {
				return type.getMethod("valueOf", String.class).invoke(null, object);
			} catch (Exception e1) {
				logger.debug("Cannot invoke [public static " 
						+ type.getName() + ".valueOf(String.class)]" 
						+ "method on [" + type + "]", e1);
			}
			
		} else {
			logger.warn("Parameter [" + object
					+ "] cannot be converted to [" + type + "]");
		}
		
		return null;
	}
Converts the specified object to the specified user-defined value type.
This method is overridable. You can provide your own conversion to the
parameter construction by overriding this method.

@param object The object to be converted.
@param type The type to which the specified object be converted.
@return The converted object.