@bastelfreak

URL

is deprecated and replaced with

URI

now. Can you try with?

diff --git a/src/puppetlabs/puppetdb/utils.clj b/src/puppetlabs/puppetdb/utils.clj
index c491fd1eb..195195506 100644
--- a/src/puppetlabs/puppetdb/utils.clj
+++ b/src/puppetlabs/puppetdb/utils.clj
@@ -14,7 +14,7 @@
             [clojure.walk :as walk])
   (:import
    [clojure.lang ExceptionInfo]
-   [<http://java.net|java.net> MalformedURLException URISyntaxException URL]
+   [<http://java.net|java.net> MalformedURLException URI URISyntaxException]
    [java.nio ByteBuffer CharBuffer]
    [java.nio.channels SocketChannel]
    [java.nio.charset Charset CoderResult StandardCharsets]
@@ -190,21 +190,20 @@
   "Converts the `base-url' map to an ASCII URL.  May throw
    MalformedURLException or URISyntaxException."
   [{:keys [protocol host port prefix version] :as _base-url} :- base-url-schema]
-  (-> (URL. protocol host port
-            (str prefix "/" (name (or version :v4))))
-      .toURI .toASCIIString))
+  (-> (URI. protocol nil host port
+            (str prefix "/" (name (or version :v4))) nil nil)
+      .toASCIIString))

 (pls/defn-validated base-url->str-no-path :- s/Str
   "Converts the `base-url' map to an ASCII URL minus the path element. This can
   be used to build a full URL when you have an absolute path."
   [{:keys [protocol host port] :as _base-url} :- base-url-schema]
-  (-> (URL. protocol host port "")
-      .toURI .toASCIIString))
+  (-> (URI. protocol nil host port "" nil nil)
+      .toASCIIString))

 (defn base-url->str-with-prefix
   [{:keys [protocol host port prefix] :as _base-url}]
-  (-> (java.net.URL. protocol host port prefix)
-      .toURI
+  (-> (URI. protocol nil host port prefix nil nil)
       .toASCIIString))

 (defn describe-bad-base-url
diff --git a/test/puppetlabs/puppetdb/testutils/dashboard.clj b/test/puppetlabs/puppetdb/testutils/dashboard.clj
index 97726eb70..9520c1a14 100644
--- a/test/puppetlabs/puppetdb/testutils/dashboard.clj
+++ b/test/puppetlabs/puppetdb/testutils/dashboard.clj
@@ -4,8 +4,8 @@
   "Similar to puppetlabs.puppetdb.utils/base-url->str but doesn't
   include a version as the dashboard page does not include a version"
   [{:keys [protocol host port prefix] :as _base-url}]
-  (-> (java.net.URL. protocol host port prefix)
-      .toURI .toASCIIString))
+  (-> (java.net.URI. protocol nil host port prefix nil nil)
+      .toASCIIString))

 (defn dashboard-page? [{:keys [body] :as _req}]
   (.contains body "<title>OpenvoxDB: Dashboard</title>"))