src/java.base/share/classes/sun/net/spi/DefaultProxySelector.java

@@ -393,11 +393,13 @@
      * @param disjunct non-null mask disjunct
      * @return java regex string corresponding to this mask
      */
     static String disjunctToRegex(String disjunct) {
         String regex;
-        if (disjunct.startsWith("*")) {
+        if (disjunct.startsWith("*") && disjunct.endsWith("*")) {
+            regex = ".*" + quote(disjunct.substring(1, disjunct.length() - 1)) + ".*";
+        } else if (disjunct.startsWith("*")) {
             regex = ".*" + quote(disjunct.substring(1));
         } else if (disjunct.endsWith("*")) {
             regex = quote(disjunct.substring(0, disjunct.length() - 1)) + ".*";
         } else {
             regex = quote(disjunct);