diff --git a/src/main/java/com/baidu/hugegraph/rest/RestClient.java b/src/main/java/com/baidu/hugegraph/rest/RestClient.java
index 1171f539b..57e0a8b5f 100644
--- a/src/main/java/com/baidu/hugegraph/rest/RestClient.java
+++ b/src/main/java/com/baidu/hugegraph/rest/RestClient.java
@@ -19,24 +19,8 @@
 
 package com.baidu.hugegraph.rest;
 
-import static org.glassfish.jersey.apache.connector.ApacheClientProperties.CONNECTION_MANAGER;
-
-import java.util.Collection;
-import java.util.Map;
-import java.util.concurrent.Callable;
-import java.util.concurrent.ScheduledExecutorService;
-import java.util.concurrent.TimeUnit;
-
-import javax.ws.rs.client.Client;
-import javax.ws.rs.client.ClientBuilder;
-import javax.ws.rs.client.Entity;
-import javax.ws.rs.client.Invocation.Builder;
-import javax.ws.rs.client.WebTarget;
-import javax.ws.rs.core.MediaType;
-import javax.ws.rs.core.MultivaluedMap;
-import javax.ws.rs.core.Response;
-import javax.ws.rs.core.Variant;
-
+import com.baidu.hugegraph.util.ExecutorUtil;
+import com.google.common.collect.ImmutableMap;
 import org.apache.commons.lang3.tuple.Pair;
 import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
 import org.apache.http.pool.PoolStats;
@@ -50,17 +34,26 @@
 import org.glassfish.jersey.message.GZipEncoder;
 import org.glassfish.jersey.uri.UriComponent;
 
-import javax.net.ssl.HttpsURLConnection;
-import javax.net.ssl.SSLSession;
-import javax.net.ssl.TrustManager;
-import javax.net.ssl.HostnameVerifier;
-import javax.net.ssl.SSLContext;
+import javax.net.ssl.*;
+import javax.ws.rs.client.Client;
+import javax.ws.rs.client.ClientBuilder;
+import javax.ws.rs.client.Entity;
+import javax.ws.rs.client.Invocation.Builder;
+import javax.ws.rs.client.WebTarget;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.MultivaluedMap;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.Variant;
 import java.security.KeyManagementException;
 import java.security.cert.CertificateException;
 import java.security.cert.X509Certificate;
+import java.util.Collection;
+import java.util.Map;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
 
-import com.baidu.hugegraph.util.ExecutorUtil;
-import com.google.common.collect.ImmutableMap;
+import static org.glassfish.jersey.apache.connector.ApacheClientProperties.CONNECTION_MANAGER;
 
 
 
@@ -138,8 +131,10 @@ public X509Certificate[] getAcceptedIssuers() {
     private Client wrapTrustConfig(String url, ClientConfig config) {
         Client client = null;
         SslConfigurator sslConfig = SslConfigurator.newInstance();
-        sslConfig.trustStoreFile(config.getProperties().get("trustStoreFile").toString())
-                 .trustStorePassword(config.getProperties().get("trustStorePassword").toString());
+        String trustStoreFile = config.getProperty("trustStoreFile").toString();
+        String trustStorePassword = config.getProperty("trustStorePassword").toString();
+        sslConfig.trustStoreFile(trustStoreFile)
+                 .trustStorePassword(trustStorePassword);
         sslConfig.securityProtocol("SSL");
         SSLContext sc = sslConfig.createSSLContext();
         TrustManager[] trustAllCerts = NoCheckTrustManager();
@@ -157,7 +152,7 @@ private Client wrapTrustConfig(String url, ClientConfig config) {
 
     public RestClient(String url, ClientConfig config) {
         Client client = null;
-        Object protocol = config.getProperties().get("protocol");
+        Object protocol = config.getProperty("protocol");
         if (protocol != null && protocol.equals("https")) {
             client = wrapTrustConfig(url, config);
         } else {
diff --git a/src/test/resources/hugegraph-evaluation.license b/src/test/resources/hugegraph-evaluation.license
new file mode 100644
index 000000000..d09b0b930
Binary files /dev/null and b/src/test/resources/hugegraph-evaluation.license differ