Data collector in an electronic device

A first electronic device, containing a first memory of volatile type, the first electronic device being configured to interact with a second electronic device containing a second memory of non-volatile type,

• the first and second memories comprising objects each constituting an instance of an object-oriented language class, each object being able to comprise at least one reference pointing to another object,
• the first electronic device comprising:
• a detecting module for detecting at least one object in the first memory and at least one object in the second memory constituting persistent roots;
• an scanning module configured to scan at least a part of the objects contained in the first and second memories by running, from the persistent roots, through an object tree dynamically determined from each reference, included in the analyzed objects, that points to another object;
• wherein the scan comprises:
• performing an analysis of an object of the object tree, wherein the analysis comprises:
• allocating, if the analyzed object is in the second memory and has no copy in the first memory, in the first memory a clone object, representing a copy of the analyzed object, as well as a locating object, comprising a first reference pointing to the clone object in the first memory and a second reference pointing to the analyzed object in the second memory;
• identifying each reference, contained in the analyzed object, pointing in the object tree to a referenced object;
• and
• defining, for each identified reference, a type of the reference from among a group of strong reference or a weak reference, in accordance with predefined criteria;
• iteratively repeating the analysis solely for each object of the object tree which a strong reference contained in an already analyzed object points to;
• and
• a collecting module configured, upon detecting that the scan is finished, to delete from the first and second memories each object that has not been analyzed by the scanning module during the scan.