docs: public synchronized static ApplicationClassLoader getNodeApplicationClassLoader() {
          if (nodeApplicationClassLoader != null) {
              return nodeApplicationClassLoader;
          }
          if (systemClassLoader == null) {
              throw new IllegalStateException("Can't create nodeClassLoader because systemClassLoader is null.");
          }
          nodeApplicationClassLoader = new ApplicationClassLoader(systemClassLoader, true);
          return nodeApplicationClassLoader;
      }