URLClassLoader.close() doesn't close cached JAR file on Windows when load() fails

java.net.URLClassLoader.close() doesn't work as expected for JAR archives on
Windows.

The system resource held by URLClassLoader (i.e. JAR archive itself) is NOT
released even when the class loader is closed. A similar issue has been
fixed by JDK-6896088. This issue is regarded as a special case fixed by
JDK-6896088, which can be observerd when close() is called during exception
handling of load().

Issue reproducible in JDK 14, 11, 8 and 7. 7u131 is the oldest of these.
Steps to reproduce are below.

1. Creates a arbitrary JAR file
> ls
Main.java Main.class
> jar tvf sample.jar Main.class
> ls
Main.java Main.class sample.jar

2. Run the Main class. It does the following:
  a. Creates URLClassLoader and uses it to load a class from the JAR
  b. Calls close() when the Exception thrown
  c. Attempts to delete the JAR, but can not.

> java.exe --show-version Main
java 13 2019-09-17
Java(TM) SE Runtime Environment (build 13+33)
Java HotSpot(TM) 64-Bit Server VM (build 13+33, mixed mode, sharing)
java.nio.file.FileSystemException: sample.jar: The process cannot access the
file because it is being used by another process.

        at java.base/sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:92)
        at java.base/sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:103)
        at java.base/sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:108)
        at java.base/sun.nio.fs.WindowsFileSystemProvider.implDelete(WindowsFileSystemProvider.java:274)
        at java.base/sun.nio.fs.AbstractFileSystemProvider.delete(AbstractFileSystemProvider.java:105)
        at java.base/java.nio.file.Files.delete(Files.java:1145)
        at Main.main(Main.java:21)

Test code:
=======================================================================
import java.io.*;
import java.net.*;
import java.nio.file.*;

public class Main {
   final static String FILE_NAME = "sample.jar";

   public static void main(String args[]) {
       URLClassLoader loader = null;
       URL url = null;
       Path path = Paths.get(FILE_NAME);
       try {
           String path_str = path.toUri().toURL().toString();
           url = new URL("jar", "", path_str + "!/" + "classes/");
           loader = new URLClassLoader(new URL[] { url });
           loader.loadClass("DUMMY");
       } catch (Exception e) {
       } finally {
           try {
               loader.close();
               Files.delete(path);
           } catch (IOException e) {
               e.printStackTrace();
           }
       }

   }
}
=======================================================================