Index: trunk/test/unit/org/openstreetmap/josm/tools/PlatformHookTestIT.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/tools/PlatformHookTestIT.java	(revision 15480)
+++ trunk/test/unit/org/openstreetmap/josm/tools/PlatformHookTestIT.java	(revision 15480)
@@ -0,0 +1,42 @@
+// License: GPL. For details, see LICENSE file.
+package org.openstreetmap.josm.tools;
+
+import static org.junit.Assert.assertEquals;
+
+import java.io.StringReader;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+import javax.json.Json;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.openstreetmap.josm.testutils.JOSMTestRules;
+
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
+
+/**
+ * Integration tests of {@link PlatformHook} class.
+ */
+public class PlatformHookTestIT {
+
+    /**
+     * Setup rule
+     */
+    @Rule
+    @SuppressFBWarnings(value = "URF_UNREAD_PUBLIC_OR_PROTECTED_FIELD")
+    public JOSMTestRules test = new JOSMTestRules();
+
+    /**
+     * Test that we always support the latest Ubuntu version.
+     * @throws Exception in case of error
+     */
+    @Test
+    public void testLatestUbuntuVersion() throws Exception {
+        String latestUbuntuVersion = Json.createReader(new StringReader(HttpClient.create(
+                new URL("https://api.launchpad.net/devel/ubuntu/series")).connect().fetchContent()))
+                .readObject().getJsonArray("entries").getJsonObject(0).getString("name");
+        assertEquals(latestUbuntuVersion, HttpURLConnection.HTTP_OK, HttpClient.create(
+                new URL("https://josm.openstreetmap.de/apt/dists/" + latestUbuntuVersion + '/')).connect().getResponseCode());
+    }
+}