diff -r fa68c2ab636d -r 38d0b67617e3 test/jdk/tools/jpackage/helpers/JPackageHelper.java
--- a/test/jdk/tools/jpackage/helpers/JPackageHelper.java	Wed Feb 06 09:00:28 2019 -0500
+++ b/test/jdk/tools/jpackage/helpers/JPackageHelper.java	Wed Feb 06 09:10:12 2019 -0500
@@ -488,10 +488,6 @@
                     case '"':
                         // " -> \" -> \\\"
                         if (i == 0 || in.codePointAt(i - 1) != '\\') {
-                            if (!toolProvider && isWindows()) {
-                                sb.appendCodePoint('\\');
-                                sb.appendCodePoint('\\');
-                            }
                             sb.appendCodePoint('\\');
                             sb.appendCodePoint(code);
                         }
@@ -511,9 +507,6 @@
                                 sb.appendCodePoint(code);
                             }
                         } else {
-                            if (isWindows()) {
-                                sb.appendCodePoint('\\');
-                            }
                             sb.appendCodePoint(code);
                         }
                         break;