Add URLClassLoaderImplTest to knownfailures

bug: 28535349
Change-Id: I6b4b6e67f74199d14f8a92a525014a502854417b
(cherry picked from commit 1238646160be1579ba6e6c58b265c05d80f6f93c)
diff --git a/expectations/knownfailures.txt b/expectations/knownfailures.txt
index 18d0416..caae4e8 100644
--- a/expectations/knownfailures.txt
+++ b/expectations/knownfailures.txt
@@ -1534,5 +1534,13 @@
   names: [
     "com.android.org.apache.harmony.luni.tests.java.net.UnixNetworkInterfaceTest"
   ]
+},
+{
+  description: "URLClassLoader doesn't work on Android for jar files",
+  bug: 28535349,
+  result: EXEC_FAILED,
+  names: [
+    "com.android.org.apache.harmony.luni.tests.java.net.URLClassLoaderImplTest#test_Constructor$Ljava_net_URLLjava_lang_ClassLoaderLjava_net_URLStreamHandlerFactory"
+  ]
 }
 ]