code: private static void overrideExceptionValue() {
          Field exceptionField = null;
          Field modifiersField = null;
          int originalModifiers = 0;
          boolean setModifiers = false;
  
          try {
              exceptionField = OpenSsl.class.getDeclaredField("UNAVAILABILITY_CAUSE");
              exceptionField.setAccessible(true);
  
              modifiersField = exceptionField.getClass().getDeclaredField("modifiers");
              modifiersField.setAccessible(true);
              originalModifiers = modifiersField.getInt(exceptionField);
              modifiersField.setInt(exceptionField, originalModifiers & ~Modifier.FINAL);
              setModifiers = true;
              // Override the default value. This will trigger the static block to run which tries to load the libs,
              // however we know that will fail.
              exceptionField.set(null, null);
          }
          catch (Throwable t) {
              throw Throwables.propagate(t);
          }
          finally {
              // Restore the fields to their original values
              if (exceptionField != null && modifiersField != null & setModifiers) {
                  try {
                      modifiersField.setInt(exceptionField, originalModifiers);
                  }
                  catch (IllegalAccessException e) {
                      // Allow the original exception to propagate instead.
                      return;
                  }
              }
          }
      }
docs: the library.