Allow additional environment properties to be set for outbound LDAP connections used by security realms.

LDAP security realm needs to have configurable timeouts.

The default LDAP connection timeout appears to be 2 minutes. If the ldap server is down, it could take 2 minutes for the connection to timeout. This can cause unneeded delay if you have configured multiple ldap servers for failover / redundancy.

The following hack appears to work:

+++ domain-management/src/main/java/org/jboss/as/domain/management/connections/ldap/LdapConnectionManagerService.java
@@ -132,6 +132,7 @@ public class LdapConnectionManagerService implements Service<LdapConnectionManag
result.put(Context.INITIAL_CONTEXT_FACTORY,initialContextFactory);
String url = config.require(URL).asString();
result.put(Context.PROVIDER_URL,url);
+ result.put("com.sun.jndi.ldap.connect.timeout", "500");
return result;
}