Ok, I finaly found a solution by using Apache "commons-imaging":
public void removeExifMetadata(final File jpegImageFile, final File dst)
throws IOException, ImageReadException, ImageWriteException {
OutputStream os = null;
try {
os = new FileOutputStream(dst);
os = new BufferedOutputStream(os);
new ExifRewriter().removeExifMetadata(jpegImageFile, os);
} finally {
if (os != null) {
try {
os.close();
} catch (final IOException e) {
}
}
}
}