question: private boolean execute ( boolean readResponse ) throws IOException { try { httpEngine . sendRequest ( ) ; if ( readResponse ) { httpEngine . readResponse ( ) ; } return true ; } catch ( IOException e ) { if ( handleFailure ( e ) ) { return false ; } else { throw e ; } } }
target:  Sends a request and optionally reads a response. Returns true if the request was successfully executed, and false if the request can be retried. Throws an exception if the request failed permanently.