--- a/hotspot/src/jdk.aot/share/classes/jdk.tools.jaotc/src/jdk/tools/jaotc/collect/FileSupport.java	Tue Jun 27 14:28:09 2017 -0400
+++ b/hotspot/src/jdk.aot/share/classes/jdk.tools.jaotc/src/jdk/tools/jaotc/collect/FileSupport.java	Tue Jun 27 14:29:54 2017 -0400
@@ -46,7 +46,9 @@
 
     private URI makeJarFileURI(Path path) {
         try {
-            return new URI("jar:file:" + path.toAbsolutePath() + "!/");
+            String name = path.toAbsolutePath().toString();
+            name = name.replace('\\','/');
+            return new URI("jar:file:///" + name + "!/");
         } catch (URISyntaxException e) {
             throw new InternalError(e);
         }