code: public Object getConstantInitializerValue() {
          if (!scanResult.scanSpec.enableStaticFinalFieldConstantInitializerValues) {
              throw new IllegalArgumentException(
                      "Please call ClassGraph#enableStaticFinalFieldConstantInitializerValues() " + "before #scan()");
          }
          return constantInitializerValue == null ? null : constantInitializerValue.get();
      }
docs: Returns the constant initializer value of a constant final field. Requires
  {@link ClassGraph#enableStaticFinalFieldConstantInitializerValues()} to have been called.
  
  @return The initializer value, if this is a static final field, and has a constant initializer value, or null
  if none.