Account for reset URLs with no path.

Author: mtwomey

src/main/java/com/appirio/tech/core/service/identity/resource/UserResource.java

@@ -1366,6 +1366,7 @@ protected String getResetPasswordUrlPrefix(HttpServletRequest request) {
             i = i < 0 ? 0 : i + 3;
             String domainName = resetPasswordUrlPrefix.substring(i);
             i = domainName.indexOf("/");
+            i = i < 0 ? domainName.length() : i;
             domainName = domainName.substring(0, i);
             i = domainName.lastIndexOf(".");
             i = domainName.lastIndexOf(".", i - 1);