--- a/src/java.base/share/classes/sun/net/www/MimeLauncher.java	Thu Dec 13 16:14:07 2018 +0100
+++ b/src/java.base/share/classes/sun/net/www/MimeLauncher.java	Thu Dec 13 15:31:05 2018 +0100
@@ -162,7 +162,7 @@
        location the application.  If a valid path is not found, it
        returns false else true.  */
     private boolean findExecutablePath(String str) {
-        if (str == null || str.length() == 0) {
+        if (str == null || str.isEmpty()) {
             return false;
         }