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copied!<p>I've written some code to do most of the work. It works only if your files are on the local disk instead of in a JAR. All you need is one class in the package. You could, for this purpose, create a Locator.java class, just to be able to find the package.</p> <pre><code>public class ClassEnumerator { public static void main(String[] args) throws ClassNotFoundException { List<Class<?>> list = listClassesInSamePackage(Locator.class, true); System.out.println(list); } private static List<Class<?>> listClassesInSamePackage(Class<?> locator, boolean includeLocator) throws ClassNotFoundException { File packageFile = getPackageFile(locator); String ignore = includeLocator ? null : locator.getSimpleName() + ".class"; return toClassList(locator.getPackage().getName(), listClassNames(packageFile, ignore)); } private static File getPackageFile(Class<?> locator) { URL url = locator.getClassLoader().getResource(locator.getName().replace(".", "/") + ".class"); if (url == null) { throw new RuntimeException("Cannot locate " + Locator.class.getName()); } try { return new File(url.toURI()).getParentFile(); } catch (URISyntaxException e) { throw new RuntimeException(e); } } private static String[] listClassNames(File packageFile, final String ignore) { return packageFile.list(new FilenameFilter(){ @Override public boolean accept(File dir, String name) { if (name.equals(ignore)) { return false; } return name.endsWith(".class"); } }); } private static List<Class<?>> toClassList(String packageName, String[] classNames) throws ClassNotFoundException { List<Class<?>> result = new ArrayList<Class<?>>(classNames.length); for (String className : classNames) { // Strip the .class String simpleName = className.substring(0, className.length() - 6); result.add(Class.forName(packageName + "." + simpleName)); } return result; } } </code></pre>

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