1. A machine implemented method comprising: analyzing, by a host system including at least a processor system having at least one processor, and a memory system having at least one machine readable medium that stores contents of a heap dump, including content that was stored within at least a collection of memory cells used by a function that had been called while an application is running and was dumped into the machine readable medium; creating a map, by the processor system, of the heap dump, mapping class dependencies; locating and erasing, by the host system, sensitive information; storing, by the host system, into the memory system the information that remains after the erasing; and rebuilding the content of the heap dump without the sensitive information.