public int main()

in core/src/main/java/hudson/cli/declarative/CLIRegisterer.java [196:270]
66 lines of code
12 McCabe index (conditional complexity)

                        public int main(List<String> args, Locale locale, InputStream stdin, PrintStream stdout, PrintStream stderr) {
                            this.stdout = stdout;
                            this.stderr = stderr;
                            this.locale = locale;

                            List<MethodBinder> binders = new ArrayList<>();

                            CmdLineParser parser = bindMethod(binders);
                            try {
                                SecurityContext sc = SecurityContextHolder.getContext();
                                Authentication old = sc.getAuthentication();
                                try {
                                    // fill up all the binders
                                    parser.parseArgument(args);

                                    Authentication auth = getTransportAuthentication();
                                    sc.setAuthentication(auth); // run the CLI with the right credential
                                    jenkins.checkPermission(Jenkins.READ);

                                    // resolve them
                                    Object instance = null;
                                    for (MethodBinder binder : binders)
                                        instance = binder.call(instance);

                                    if (instance instanceof Integer)
                                        return (Integer) instance;
                                    else
                                        return 0;
                                } catch (InvocationTargetException e) {
                                    Throwable t = e.getTargetException();
                                    if (t instanceof Exception)
                                        throw (Exception) t;
                                    throw e;
                                } finally {
                                    sc.setAuthentication(old); // restore
                                }
                            } catch (CmdLineException e) {
                                stderr.println();
                                stderr.println("ERROR: " + e.getMessage());
                                printUsage(stderr, parser);
                                return 2;
                            } catch (IllegalStateException e) {
                                stderr.println();
                                stderr.println("ERROR: " + e.getMessage());
                                return 4;
                            } catch (IllegalArgumentException e) {
                                stderr.println();
                                stderr.println("ERROR: " + e.getMessage());
                                return 3;
                            } catch (AbortException e) {
                                stderr.println();
                                stderr.println("ERROR: " + e.getMessage());
                                return 5;
                            } catch (AccessDeniedException e) {
                                stderr.println();
                                stderr.println("ERROR: " + e.getMessage());
                                return 6;
                            } catch (BadCredentialsException e) {
                                // to the caller, we can't reveal whether the user didn't exist or the password didn't match.
                                // do that to the server log instead
                                String id = UUID.randomUUID().toString();
                                LOGGER.log(Level.INFO, "CLI login attempt failed: " + id, e);
                                stderr.println();
                                stderr.println("ERROR: Bad Credentials. Search the server log for " + id + " for more details.");
                                return 7;
                            } catch (Throwable e) {
                                final String errorMsg = String.format("Unexpected exception occurred while performing %s command.",
                                        getName());
                                stderr.println();
                                stderr.println("ERROR: " + errorMsg);
                                LOGGER.log(Level.WARNING, errorMsg, e);
                                Functions.printStackTrace(e, stderr);
                                return 1;
                            }
                        }