cdm/src/main/java/ucar/nc2/util/cache/FileCacheARC.java
public String getInfo(FileCacheable ncfile) throws IOException {
    if (ncfile == null) return "";

    // find it in the file cache
    int hashcode = System.identityHashCode(ncfile);
    CacheElement.CacheFile file = files.get(hashcode);
    if (file != null) {
      return "File is in cache= " + file;
    }
    return "File not in cache";
  }
public String getInfo(FileCacheable ncfile) throws IOException {
    if (ncfile == null) return "";

    // find it in the file cache
    int hashcode = System.identityHashCode(ncfile);
    CacheElement.CacheFile file = files.get(hashcode);
    if (file != null) {
      return "File is in cache= " + file;
    }
    return "File not in cache";
  }
debug