--- src/protocol/http/org/apache/jmeter/protocol/http/control/DNSCacheManager.java	(Revision 1804189)
+++ src/protocol/http/org/apache/jmeter/protocol/http/control/DNSCacheManager.java	(Arbeitskopie)
@@ -217,8 +217,14 @@ 
                 List<InetAddress> addresses = new ArrayList<>();
                 for (String address : Arrays.asList(entry.getAddress().split("\\s*,\\s*"))) {
                     try {
-                        addresses.addAll(Arrays.asList(requestLookup(address)));
+                        final InetAddress[] requestLookup = requestLookup(address);
+                        if (requestLookup == null) {
+                            addAsLiteralAddress(addresses, address);
+                        } else {
+                            addresses.addAll(Arrays.asList(requestLookup));
+                        }
                     } catch (UnknownHostException e) {
+                        addAsLiteralAddress(addresses, address);
                         log.warn("Couldn't resolve static address {} for host {}", address, host, e);
                     }
                 }
@@ -228,6 +234,15 @@ 
         return new InetAddress[0];
     }
 
+    private void addAsLiteralAddress(List<InetAddress> addresses,
+            String address) {
+        try {
+            addresses.add(InetAddress.getByName(address));
+        } catch (UnknownHostException e) {
+            log.info("Couldn't convert {} as literal address to InetAddress", address, e);
+        }
+    }
+
     /**
      * Sends DNS request via system or custom DNS resolver
      * @param host Host
--- test/src/org/apache/jmeter/protocol/http/control/TestDNSCacheManager.java	(Revision 1804189)
+++ test/src/org/apache/jmeter/protocol/http/control/TestDNSCacheManager.java	(Arbeitskopie)
@@ -47,6 +47,16 @@ 
     }
 
     @Test
+    public void testWithOneAsStaticHostAndInvalidCustomResolver() throws Exception {
+        DNSCacheManager manager = new DNSCacheManager();
+        manager.setCustomResolver(true);
+        manager.addServer(INVALID_DNS_SERVER);
+        manager.addHost("localhost", "127.0.0.1");
+        assertThat(manager.resolve("localhost"),
+                CoreMatchers.is(CoreMatchers.equalTo(new InetAddress[] { InetAddress.getByName("127.0.0.1") })));
+    }
+
+    @Test
     public void testWithMultipleStaticHost() throws Exception {
         DNSCacheManager manager = new DNSCacheManager();
         manager.setCustomResolver(true);