src/java.naming/share/classes/com/sun/jndi/ldap/LdapCtx.java

@@ -2976,11 +2976,12 @@
             }
 
             r = new LdapReferralException(resolvedName, resolvedObj, remainName,
                 msg, envprops, fullDN, handleReferrals, reqCtls);
             // only one set of URLs is present
-            r.setReferralInfo(res.referrals.elementAt(0), false);
+            r.setReferralInfo(res.referrals == null ? null :
+                    res.referrals.elementAt(0), false);
 
             if (hopCount > 1) {
                 r.setHopCount(hopCount);
             }
 

@@ -3045,11 +3046,11 @@
              *
              *     If 1 referral and 0 entries is received then
              *     assume name resolution has not yet completed.
              */
             if (((res.entries == null) || (res.entries.isEmpty())) &&
-                (res.referrals.size() == 1)) {
+                ((res.referrals != null) && (res.referrals.size() == 1))) {
 
                 r.setReferralInfo(res.referrals, false);
 
                 // check the hop limit
                 if (hopCount > referralHopLimit) {