change

src/connector/jdbc/pom.xml

@@ -127,6 +127,7 @@
                     </includes>
                     <excludes>
                         <exclude>**/AppMemoryLeakTest.java</exclude>
+                        <exclude>**/TaosInfoMonitorTest.java</exclude>
                         <exclude>**/FailOverTest.java</exclude>
                     </excludes>
                     <testFailureIgnore>true</testFailureIgnore>

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/TaosInfoMonitorTest.java

@@ -0,0 +1,37 @@
+package com.taosdata.jdbc.cases;
+
+import org.junit.Test;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import java.util.stream.Collectors;
+import java.util.stream.IntStream;
+
+public class TaosInfoMonitorTest {
+
+    @Test
+    public void testCreateTooManyConnection() throws ClassNotFoundException, SQLException, InterruptedException {
+        Class.forName("com.taosdata.jdbc.TSDBDriver");
+        int conCnt = 0;
+        final String url = "jdbc:TAOS://127.0.0.1:6030/?user=root&password=taosdata";
+
+        List<Connection> connectionList = IntStream.range(0, 100).mapToObj(i -> {
+            try {
+                return DriverManager.getConnection(url);
+            } catch (SQLException e) {
+                e.printStackTrace();
+            }
+            return null;
+        }).collect(Collectors.toList());
+        connectionList.stream().forEach(conn -> {
+            try {
+                conn.close();
+            } catch (SQLException e) {
+                e.printStackTrace();
+            }
+        });
+    }
+}