code: public static void load(final String aNativeLibrary) throws IOException {
          final String libFileName = getPlatformLibraryName(aNativeLibrary);
          final File tmpDir = new File(System.getProperty("java.io.tmpdir"));
          final File libFile = new File(tmpDir, libFileName);
  
          // Check to see whether it already exists before we go creating it again?
          if (!libFile.exists() || libFile.length() == 0) {
              final URL url = ClasspathUtils.findFirst(libFileName);
  
              if (url == null) {
                  throw new FileNotFoundException(LOGGER.getMessage(MessageCodes.UTIL_002, aNativeLibrary));
              }
  
              final JarFile jarFile = new JarFile(url.getFile());
              final JarEntry jarEntry = jarFile.getJarEntry(libFileName);
              final InputStream inStream = jarFile.getInputStream(jarEntry);
              final BufferedOutputStream outStream = new BufferedOutputStream(new FileOutputStream(libFile));
  
              IOUtils.copyStream(inStream, outStream);
              IOUtils.closeQuietly(inStream);
              IOUtils.closeQuietly(outStream);
              IOUtils.closeQuietly(jarFile);
          }
  
          if (libFile.exists() && libFile.length() > 0) {
              System.load(libFile.getAbsolutePath());
          } else {
              throw new IOException(LOGGER.getI18n(MessageCodes.UTIL_039, libFile));
          }
      }
docs: Loads a native library from the classpath.
  
  @param aNativeLibrary A native library to load from the classpath
  @throws IOException If there is trouble reading from the Jar file or file system