private String getSHA256(File file) {
String sha256 = null;
try {
FileContentDelegate fileContentDelegate = new FileContentDelegate();
sha256 = fileContentDelegate.retrieveDeploymentSHA(file, getResourceContext().getResourceDataDirectory());
} catch (Exception iex) {
if (LOG.isDebugEnabled()) {
LOG.debug("Problem calculating digest of package [" + file.getPath() + "]." + iex.getMessage());
}
}