diff --git a/cmake/install.inc b/cmake/install.inc
index e9ad240a793b9736edbe5769c6af12276e13a1a6..7ea2ba8da0af79c15378cda956a330b357804c5a 100755
--- a/cmake/install.inc
+++ b/cmake/install.inc
@@ -32,7 +32,7 @@ ELSEIF (TD_WINDOWS)
   #INSTALL(TARGETS taos RUNTIME DESTINATION driver)
   #INSTALL(TARGETS shell RUNTIME DESTINATION .)
   IF (TD_MVN_INSTALLED)
-    INSTALL(FILES ${LIBRARY_OUTPUT_PATH}/taos-jdbcdriver-2.0.34-dist.jar DESTINATION connector/jdbc)
+    INSTALL(FILES ${LIBRARY_OUTPUT_PATH}/taos-jdbcdriver-2.0.35-dist.jar DESTINATION connector/jdbc)
   ENDIF ()
 ELSEIF (TD_DARWIN)
   SET(TD_MAKE_INSTALL_SH "${TD_COMMUNITY_DIR}/packaging/tools/make_install.sh")
diff --git a/src/connector/jdbc/CMakeLists.txt b/src/connector/jdbc/CMakeLists.txt
index e432dac1cea593b371a173f334e5313236091ab3..1e5cede714820f29defe3c6b458b2daf467bc4d2 100644
--- a/src/connector/jdbc/CMakeLists.txt
+++ b/src/connector/jdbc/CMakeLists.txt
@@ -8,7 +8,7 @@ IF (TD_MVN_INSTALLED)
   ADD_CUSTOM_COMMAND(OUTPUT ${JDBC_CMD_NAME}
     POST_BUILD
     COMMAND mvn -Dmaven.test.skip=true install -f ${CMAKE_CURRENT_SOURCE_DIR}/pom.xml
-    COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/target/taos-jdbcdriver-2.0.34-dist.jar ${LIBRARY_OUTPUT_PATH}
+    COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/target/taos-jdbcdriver-2.0.35-dist.jar ${LIBRARY_OUTPUT_PATH}
     COMMAND mvn -Dmaven.test.skip=true clean -f ${CMAKE_CURRENT_SOURCE_DIR}/pom.xml
     COMMENT "build jdbc driver")
   ADD_CUSTOM_TARGET(${JDBC_TARGET_NAME} ALL WORKING_DIRECTORY ${EXECUTABLE_OUTPUT_PATH} DEPENDS ${JDBC_CMD_NAME})
diff --git a/src/connector/jdbc/deploy-pom.xml b/src/connector/jdbc/deploy-pom.xml
index ef57198e78d2268faba526d5506b0dc384f5766f..7caf46848d18c4491cdea1ab50df31d8d2d26daf 100755
--- a/src/connector/jdbc/deploy-pom.xml
+++ b/src/connector/jdbc/deploy-pom.xml
@@ -5,7 +5,7 @@
 
   <groupId>com.taosdata.jdbc</groupId>
   <artifactId>taos-jdbcdriver</artifactId>
-  <version>2.0.34</version>
+  <version>2.0.35</version>
   <packaging>jar</packaging>
 
   <name>JDBCDriver</name>
diff --git a/src/connector/jdbc/pom.xml b/src/connector/jdbc/pom.xml
index fbeeeb56d30357294663a5ebf64608c57e066a7d..d79be3ac86ffd2504c13fa4c4acf6b4f336ccfb3 100644
--- a/src/connector/jdbc/pom.xml
+++ b/src/connector/jdbc/pom.xml
@@ -3,7 +3,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.taosdata.jdbc</groupId>
     <artifactId>taos-jdbcdriver</artifactId>
-    <version>2.0.34</version>
+    <version>2.0.35</version>
     <packaging>jar</packaging>
     <name>JDBCDriver</name>
     <url>https://github.com/taosdata/TDengine/tree/master/src/connector/jdbc</url>
diff --git a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBDriver.java b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBDriver.java
index 521a88b128ff930510bf00cdcb6a12cbc3211742..33d2560bcca28116db49a283f02d566bda5e3852 100755
--- a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBDriver.java
+++ b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBDriver.java
@@ -118,9 +118,6 @@ public class TSDBDriver extends AbstractDriver {
     }
 
     public Connection connect(String url, Properties info) throws SQLException {
-        if (url == null)
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_URL_NOT_SET);
-
         if (!acceptsURL(url))
             return null;
 
diff --git a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBJNIConnector.java b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBJNIConnector.java
index b427f296e95e6a83a03d4f222aac2a0b7b2cb612..79c540597c307284757e2f3e813067907022543c 100755
--- a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBJNIConnector.java
+++ b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBJNIConnector.java
@@ -38,14 +38,6 @@ public class TSDBJNIConnector {
         System.loadLibrary("taos");
     }
 
-    public boolean isClosed() {
-        return this.taos == TSDBConstants.JNI_NULL_POINTER;
-    }
-
-    public boolean isResultsetClosed() {
-        return this.isResultsetClosed;
-    }
-
     public static void init(String configDir, String locale, String charset, String timezone) throws SQLWarning {
         synchronized (isInitialized) {
             if (!isInitialized) {
@@ -159,6 +151,14 @@ public class TSDBJNIConnector {
 
     private native long isUpdateQueryImp(long connection, long pSql);
 
+    public boolean isClosed() {
+        return this.taos == TSDBConstants.JNI_NULL_POINTER;
+    }
+
+    public boolean isResultsetClosed() {
+        return this.isResultsetClosed;
+    }
+
     /**
      * Free result set operation from C to release result set pointer by JNI
      */
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SetConfigurationInJNITest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SetConfigurationInJNITest.java
index 9b8ed386d461453b48ce28ffcc85f985e7ad3f08..fe51383a044d555d8c6b610854bf233feae747ba 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SetConfigurationInJNITest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SetConfigurationInJNITest.java
@@ -2,10 +2,61 @@ package com.taosdata.jdbc;
 
 import org.junit.Test;
 
+import java.sql.SQLException;
+import java.util.Arrays;
+
+import static org.junit.Assert.*;
+
+
 public class SetConfigurationInJNITest {
 
+    private String host = "127.0.0.1";
+    private String dbname = "test_jni";
+    private long maxSQLLength = 1024000;
+    private String debugFlagJSON = "{ \"debugFlag\": 135}";
+    private String maxSqlLengthJSON = "{ \"maxSQLLength\": " + maxSQLLength + "}";
+
+    @Test
+    public void testDebugFlag() {
+        try {
+            TSDBJNIConnector.initImp(null);
+            TSDBJNIConnector.setOptions(0, null);
+            TSDBJNIConnector.setOptions(1, null);
+            TSDBJNIConnector.setOptions(2, null);
+            String tsCharset = TSDBJNIConnector.getTsCharset();
+            System.out.println(tsCharset);
+
+            TSDBJNIConnector jniConnector = new TSDBJNIConnector();
+            boolean connected = jniConnector.connect(host, 0, null, "root", "taosdata");
+            assertTrue(connected);
+
+            String[] setupSqls = {
+                    "drop database if exists " + dbname,
+                    "create database if not exists " + dbname,
+                    "use " + dbname,
+                    "create table weather(ts timestamp, f1 int) tags(loc nchar(10))",
+                    "insert into t1 using weather tags('beijing') values(now, 1)",
+                    "drop database if exists " + dbname
+            };
+
+            Arrays.asList(setupSqls).forEach(sql -> {
+                try {
+                    long setupSql = jniConnector.executeQuery(sql);
+                    if (jniConnector.isUpdateQuery(setupSql)) {
+                        jniConnector.freeResultSet(setupSql);
+                    }
+                } catch (SQLException e) {
+                    e.printStackTrace();
+                }
+            });
+
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
     @Test
-    public void test() {
+    public void testMaxSQLLength() {
 
     }
-}
+}
\ No newline at end of file