@CommandHandler public void handle(DiagnosticsFileNameReceivedCommand command) { String diagnosticsFileName = command.getDiagnosticsFileName(); if (diagnosticsFileName.isEmpty()) { apply(new NoDiagnosticsInformationAvailableEvent(this.id, command.getIdentityContext())); } else { apply(new DiagnosticsFileNameReceivedEvent(this.id, diagnosticsFileName, command.getIdentityContext())); } }