Multiple 500 Internal Server Error caused by muted input parameters.

[victomteng1997]

Summary:
the following endpoints contains 500 Internal Server Error when muted inputs are given:

{'deleteFeature', 'updateFeatureOfProduct', 'getFeaturesForProduct', 'deleteConfiguration', 'deleteFeatureOfProduct', 'addFeatureToProduct', 'addFeatureToConfiguration', 'addConfiguration', 'getProductByName', 'getConfigurationActivedFeatures'}

A non-existing object is not properly handled at server backend. Server should return 404 instead of 500 in this case.

Example:

input: curl http://localhost:8080/products/68PPY863VFRH2EL0TOYWVROTB97GOP3VQGBSDUBD7Z6GARR7263IYZ9Y50O9138G8QGR6I1P21
response: HTTP Status 500 - org.javiermf.features.exceptions.ObjectNotFoundException: Object with id 68PPY863VFRH2EL0TOYWVROTB97GOP3VQGBSDUBD7Z6GARR7263IYZ9Y50O9138G8QGR6I1P21 has not been found

An existing object is not properly handled at creation. Server should return 400 in this case

input: curl -x POST http://localhost:8080/products/104YC6TVEE6ZIV68NVH3LWBK8H1KCEUY/configurations/104YC6TVEE6ZIV68NVH3LWBK8H1KCEUY/features/104YC6TVEE6ZIV68NVH3LWBK8H1KCEUY

HTTP Status 500 - org.javiermf.features.exceptions.DuplicatedObjectException: Object with id 104YC6TVEE6ZIV68NVH3LWBK8H1KCEUY already exists