--- old/src/java.base/unix/classes/jdk/internal/loader/FileURLMapper.java	2019-01-04 10:01:57.086537099 -0800
+++ new/src/java.base/unix/classes/jdk/internal/loader/FileURLMapper.java	2019-01-04 10:01:56.766537363 -0800
@@ -30,22 +30,21 @@
 import sun.net.www.ParseUtil;
 
 /**
- * (Solaris) platform specific handling for file: URLs .
- * urls must not contain a hostname in the authority field
+ * (Unix) platform specific handling for file: URLs .
+ * URLs must not contain a hostname in the authority field
  * other than "localhost".
  *
  * This implementation could be updated to map such URLs
- * on to /net/host/...
+ * on to /net/host/... on system using such an automounter map.
  *
  * @author      Michael McMahon
  */
 
 public class FileURLMapper {
-
-    URL url;
+    final URL url;
     String path;
 
-    public FileURLMapper (URL url) {
+    public FileURLMapper(URL url) {
         this.url = url;
     }
 
@@ -53,8 +52,7 @@
      * @return the platform specific path corresponding to the URL
      *  so long as the URL does not contain a hostname in the authority field.
      */
-
-    public String getPath () {
+    public String getPath() {
         if (path != null) {
             return path;
         }
@@ -69,13 +67,8 @@
     /**
      * Checks whether the file identified by the URL exists.
      */
-    public boolean exists () {
-        String s = getPath ();
-        if (s == null) {
-            return false;
-        } else {
-            File f = new File (s);
-            return f.exists();
-        }
+    public boolean exists() {
+        String s = getPath();
+        return s != null && new File(s).exists();
     }
 }