public Builder hiddenImpl(Class<?>... types) {
      hiddenImpl(baseClass, types);
      return this;
    }
Set the {@link ClassLoader} used to lookup classes by name.

<p>If not set, the current thread's ClassLoader is used.

@param newLoader a ClassLoader
@return this Builder for method chaining
amoro-common/src/main/java/org/apache/amoro/utils/DynConstructors.java