OF-1322: Preventing a NPE, removing an unneeded nullcheck.

src/java/org/jivesoftware/openfire/net/SASLAuthentication.java

@@ -200,7 +200,6 @@ public class SASLAuthentication {
                 boolean trustedCert = false;
                 if (session.isSecure()) {
                     final LocalClientSession localClientSession = (LocalClientSession)session;
-                    if (localClientSession != null) {
                     final Connection connection = localClientSession.getConnection();
                     final KeyStore keyStore = connection.getConfiguration().getIdentityStore().getStore();
                     final KeyStore trustStore = connection.getConfiguration().getTrustStore().getStore();
@@ -209,7 +208,6 @@ public class SASLAuthentication {
                         trustedCert = true;
                     }
                 }
-                }
                 if (trustedCert == false) {
                     continue; // Do not offer EXTERNAL.
                 }

src/java/org/jivesoftware/util/CertificateManager.java

@@ -184,7 +184,7 @@ public class CertificateManager {
      */
     public static X509Certificate getEndEntityCertificate(Certificate chain[],
             KeyStore certStore, KeyStore trustStore) {
-        if (chain.length == 0) {
+        if (chain == null || chain.length == 0) {
             return null;
         }
         X509Certificate first = (X509Certificate) chain[0];