#!/bin/env python import os, subprocess def extract_classes(f): lines = subprocess.check_output(['jar', 'tf', f]).split() result = set() for line in lines: v = line.decode('utf-8').strip() if v.endswith('.class') and not v.endswith('module-info.class'): result.add(v) return result print('Reading JAR files... ', end='', flush=True) paths = [] for root, dirs, files in os.walk('.'): for name in files: if not name.lower().endswith('.jar'): continue paths.append(os.path.join(root, name)) paths.sort() classes = {} count = 0 perc = '' for path in paths: count += 1 classes[path] = extract_classes(path) print('\b' * len(perc), end='') perc = str(round(100 * count / len(paths))) + '% ' print(perc, end='', flush=True) print() print('Scanning for duplicate classes...') for i1 in range(len(paths)): p1 = paths[i1] duplist = [] for i2 in range(i1 + 1, len(paths)): p2 = paths[i2] dups = classes[p1].intersection(classes[p2]) if len(dups) > 0: duplist.append(f'==> {p2} (e.g. {next(iter(dups))})') if len(duplist) > 0: print(p1) for line in duplist: print(line) print('Done!')