question: private Pair < Entry , char [ ] > recoverEntry ( KeyStore ks , String alias , char [ ] pstore , char [ ] pkey ) throws Exception { if ( ks . containsAlias ( alias ) == false ) { MessageFormat form = new MessageFormat ( rb . getString ( "Alias.alias.does.not.exist" ) ) ; Object [ ] source = { alias } ; throw new Exception ( form . format ( source ) ) ; } PasswordProtection pp = null ; Entry entry ; try { entry = ks . getEntry ( alias , pp ) ; pkey = null ; } catch ( UnrecoverableEntryException une ) { if ( P11KEYSTORE . equalsIgnoreCase ( ks . getType ( ) ) || KeyStoreUtil . isWindowsKeyStore ( ks . getType ( ) ) ) { throw une ; } if ( pkey != null ) { pp = new PasswordProtection ( pkey ) ; entry = ks . getEntry ( alias , pp ) ; } else { try { pp = new PasswordProtection ( pstore ) ; entry = ks . getEntry ( alias , pp ) ; pkey = pstore ; } catch ( UnrecoverableEntryException une2 ) { if ( P12KEYSTORE . equalsIgnoreCase ( ks . getType ( ) ) ) { throw une2 ; } else { pkey = getKeyPasswd ( alias , null , null ) ; pp = new PasswordProtection ( pkey ) ; entry = ks . getEntry ( alias , pp ) ; } } } } return Pair . of ( entry , pkey ) ; }
target:  Recovers entry associated with given alias.