public static File jarLocation()

in src/main/java/org/apache/openejb/tools/release/util/JarLocation.java [33:72]

• 30 lines of code
• 8 McCabe index (conditional complexity)

    public static File jarLocation(final Class clazz) {
        try {
            final String classFileName = clazz.getName().replace(".", "/") + ".class";

            final ClassLoader loader = clazz.getClassLoader();
            URL url;
            if (loader != null) {
                url = loader.getResource(classFileName);
            } else {
                url = clazz.getResource(classFileName);
            }

            if (url == null) {
                throw new IllegalStateException("classloader.getResource(classFileName) returned a null URL");
            }

            if ("jar".equals(url.getProtocol())) {
                final String spec = url.getFile();

                int separator = spec.indexOf('!');
                /*
                 * REMIND: we don't handle nested JAR URLs
                 */
                if (separator == -1) throw new MalformedURLException("no ! found in jar url spec:" + spec);

                url = new URL(spec.substring(0, separator++));

                return new File(decode(url.getFile()));

            } else if ("file".equals(url.getProtocol())) {
                return toFile(classFileName, url);
            } else {
                throw new IllegalArgumentException("Unsupported URL scheme: " + url.toExternalForm());
            }
        } catch (final RuntimeException e) {
            throw e;
        } catch (final Exception e) {
            throw new IllegalStateException(e);
        }
    }