Rethink internal waiting thread increasing very rapidly

I am using rethinkdb-driver 2.4.2 in spring boot java application, I am making a query to get some list of data but i can see 100+ thread are in waiting.

Memory Dump Log

"https-jsse-nio-52020-exec-190" #295 daemon prio=5 os_prio=0 tid=0x00007fe4d410b000 nid=0x6b29 waiting on condition [0x00007fe494685000]
   java.lang.Thread.State: WAITING (parking)
    at sun.misc.Unsafe.park(Native Method)
    - parking to wait for  <0x00000000d1fedd88> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
    at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
    at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
    at com.rethinkdb.net.Result.next(Result.java:259)
    at com.rethinkdb.net.Result.forEach(Result.java:338)
    at com.rethinkdb.net.Result.forEachRemaining(Result.java:350)
    at com.rethinkdb.net.Result.collect(Result.java:179)
    at com.rethinkdb.net.Result.toList(Result.java:159)
    at com.mycode.socket.manager.ignite.RethinkManager.getACD(RethinkManager.java:75)

Code snipit

public String getACD(String idd, String namee) {
        //r.db('esl').table('table').filter({"id":"4","name":"abc.com"}).getField("id1").nth(0)
        String id = "1";
        try{
            rethinkDBConnectionFactory.reInitDbACD();
            GetField vdnSkillPBXFilter = rethinkDBConnectionFactory.getSkill().filter(row -> row.g("id").eq(idd)).filter(row -> row.g("name").eq(namee)).getField("id1");
            
            try(Result<String> acdIdListObj = vdnSkillPBXFilter.run(rethinkDBConnectionFactory.getConn(),String.class);){
                List<String> acdIdList = acdIdListObj.toList();
            }
        }catch(Exception e){
            e.printStackTrace();
        }
        return id;
    }