SEC-2500: Prevent anonymous bind for ActiveDirectoryLdapAuthenticator

ldap/src/test/java/org/springframework/security/ldap/authentication/ad/ActiveDirectoryLdapAuthenticationProviderTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2014 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
  * the License. You may obtain a copy of the License at
@@ -143,6 +143,12 @@ public class ActiveDirectoryLdapAuthenticationProviderTests {
         provider.authenticate(joe);
     }
 
+    // SEC-2500
+    @Test(expected = BadCredentialsException.class)
+    public void sec2500PreventAnonymousBind() {
+        provider.authenticate(new UsernamePasswordAuthenticationToken("rwinch", ""));
+    }
+
     @SuppressWarnings("unchecked")
     @Test(expected = IncorrectResultSizeDataAccessException.class)
     public void duplicateUserSearchCausesError() throws Exception {