Find alternative to com.clearspring.analytics

    <dependency>
      <groupId>com.clearspring.analytics</groupId>
      <artifactId>stream</artifactId>
      <version>2.7.0</version>
    </dependency>

   private Batch getBatch( Map<String, Object> payload) {
       synchronized (this) {
           long hash = MurmurHash.hash64(payload);
           Batch batch = batches.get(hash);
           if (batch == null && payload != null) {
               batch = new Batch(notifier, payload);
               batches.put(hash, batch);
           }
           return batch;
       }
   }

final CountMinSketch sketch = new CountMinSketch(0.0001,.99,7364181); //add probablistic counter to find dups