MobileLedgerProfile profile;
try (LockHolder readLock = profilesLocker.lockForReading()) {
List<MobileLedgerProfile> prList = profiles.getValue();
if ((prList == null) || prList.isEmpty()) {
readLock.close();
try (LockHolder ignored = profilesLocker.lockForWriting()) {
MobileLedgerProfile profile;
try (LockHolder readLock = profilesLocker.lockForReading()) {
List<MobileLedgerProfile> prList = profiles.getValue();
if ((prList == null) || prList.isEmpty()) {
readLock.close();
try (LockHolder ignored = profilesLocker.lockForWriting()) {