8064736: Part of java.util.jar.JarFile spec looks confusing with references to Zip

Update the api doc for entries()/stream() accordingly

Reviewed-by: alanb

jdk/src/java.base/share/classes/java/util/jar/JarFile.java

@@ -268,13 +268,25 @@ class JarFile extends ZipFile {
     }
 
     /**
-     * Returns an enumeration of the zip file entries.
+     * Returns an enumeration of the jar file entries.
+     *
+     * @return an enumeration of the jar file entries
+     * @throws IllegalStateException
+     *         may be thrown if the jar file has been closed
      */
     public Enumeration<JarEntry> entries() {
         return new JarEntryIterator();
     }
 
-    @Override
+    /**
+     * Returns an ordered {@code Stream} over the jar file entries.
+     * Entries appear in the {@code Stream} in the order they appear in
+     * the central directory of the jar file.
+     *
+     * @return an ordered {@code Stream} of entries in this jar file
+     * @throws IllegalStateException if the jar file has been closed
+     * @since 1.8
+     */
     public Stream<JarEntry> stream() {
         return StreamSupport.stream(Spliterators.spliterator(
                 new JarEntryIterator(), size(),

jdk/src/java.base/share/classes/java/util/zip/ZipFile.java

@@ -538,7 +538,7 @@ class ZipFile implements ZipConstants, Closeable {
     }
 
     /**
-     * Return an ordered {@code Stream} over the ZIP file entries.
+     * Returns an ordered {@code Stream} over the ZIP file entries.
      * Entries appear in the {@code Stream} in the order they appear in
      * the central directory of the ZIP file.
      *