core/src/main/java/io/fabric8/maven/core/util/MavenUtil.java
private static URLClassLoader createClassLoader(List<String> classpathElements, String... paths) {
        List<URL> urls = new ArrayList<>();
        for (String path : paths) {
            URL url = pathToUrl(path);
            urls.add(url);
        }
        for (Object object : classpathElements) {
            if (object != null) {
                String path = object.toString();
                URL url = pathToUrl(path);
                urls.add(url);
            }
        }
        return createURLClassLoader(urls);
    }
private static URLClassLoader createClassLoader(List<String> classpathElements, String... paths) {
        List<URL> urls = new ArrayList<>();
        for (String path : paths) {
            URL url = pathToUrl(path);
            urls.add(url);
        }
        for (Object object : classpathElements) {
            if (object != null) {
                String path = object.toString();
                URL url = pathToUrl(path);
                urls.add(url);
            }
        }
        return createURLClassLoader(urls);
    }
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