code: public static InputStream readResource(String name) {
          String classpath = System.getProperty("java.class.path");
          LOGGER.trace("Reading {} from classpath={}", name, classpath);
          ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
          if (classLoader == null) {
              throw new IllegalStateException("Can not obtain classloader instance from current thread");
          }
          return classLoader.getResourceAsStream(name);
      }
docs: Load resource from classpath.