jefl

This is simple Java library for secure erase files.

When we remove file, remove only name file but content file stay exist.
Sometimes we want that file content can not be recovery again.

For secure erase file used next steps:

> overwrite content file
> truncate file 
> random rename file
> delete file

There are the following methods of overwrite content file:

> Simple  method - overwrite 1 pass 0x00 bytes
> DOE     method - overwrite 3 pass random, random, "DoE"
> RCMP    method - overwrite 3 pass 0x00 ,0xFF, "RCMP"
> OPENBSD method - overwrite 3 pass 0xFF, 0x00, 0xFF bytes
> DOD     method - overwrite 7 pass 
> Gutmann method - overwrite 35 pass

Using this library developer can erase files in the following way.

  native boolean eraseFile(String path) throws EraseException;
	
  native boolean eraseFile(String path, OverwrideMode mode) throws EraseException;
	
  native boolean eraseFiles(String... paths) throws EraseException;
	
  native boolean eraseFiles(OverwrideMode mode, String... paths) throws EraseException;
	
  native boolean eraseDirectory(String path, boolean recur) throws EraseException;
	
  native boolean eraseDirectory(String path, OverwrideMode mode, boolean recur) throws EraseException;

Verified:
Static analizer: clang-tidy
Dynamic analizer: valgrind

Requirements:
Java min version: 11
C++ min version: 20