src/jdk.scripting.nashorn/share/classes/jdk/nashorn/api/scripting/URLReader.java

*** 28,37 ****
--- 28,38 ----
  import java.io.CharArrayReader;
  import java.io.IOException;
  import java.io.Reader;
  import java.net.URL;
  import java.nio.charset.Charset;
+ import java.util.Objects;
  import jdk.nashorn.internal.runtime.Source;
  
  /**
   * A Reader that reads from a URL. Used to make sure that the reader
   * reads content from given URL and can be trusted to do so.
*** 75,86 ****
       * @param url URL for this URLReader
       * @param cs  Charset used to convert bytes to chars
       * @throws NullPointerException if url is null
       */
      public URLReader(final URL url, final Charset cs) {
!         // null check
!         url.getClass();
          this.url = url;
          this.cs  = cs;
      }
  
      @Override
--- 76,86 ----
       * @param url URL for this URLReader
       * @param cs  Charset used to convert bytes to chars
       * @throws NullPointerException if url is null
       */
      public URLReader(final URL url, final Charset cs) {
!         Objects.requireNonNull(url);
          this.url = url;
          this.cs  = cs;
      }
  
      @Override