private static boolean isVisibleFromClassLoader(@NotNull ClassLoaderReference fromLoader, final ReferenceType refType) {
    // IMPORTANT! Even if the refType is already loaded by some parent or bootstrap loader, it may not be visible from the given loader.
    // For example because there were no accesses yet from this loader to this class. So the loader is not in the list of "initialing" loaders
    // for this refType and the refType is not visible to the loader.
    // Attempt to evaluate method with this refType will yield ClassNotLoadedException.
    // The only way to say for sure whether the class is _visible_ to the given loader, is to use the following API call
    if (fromLoader instanceof ClassLoaderReferenceImpl) {
      return ((ClassLoaderReferenceImpl)fromLoader).isVisible(refType);
    }
    return fromLoader.visibleClasses().contains(refType);
  }
private static boolean isVisibleFromClassLoader(@NotNull ClassLoaderReference fromLoader, final ReferenceType refType)