Fix for CVE-2019-17640 in vert-x3/vertx-web (project vert-x3__vertx-web_CVE-2019-17640_3.9.3), commit b12f7c4c6576a8adc3f683b2899de4b0e7d099e4
Fixed file: vertx-web/src/test/java/io/vertx/ext/web/handler/StaticHandlerTest.java
Fixed class: StaticHandlerTest (lines 39-861)
Fixed method: testGetDefaultIndex (lines 51-52)
Method signature: void testGetDefaultIndex()