How to Fix Errors When Saving and Reloading a Guava Bloom Filter?

// Example code to save a Guava Bloom Filter
BloomFilter<String> bloomFilter = BloomFilter.create(Funnels.stringFunnel(Charset.defaultCharset()), 1000, 0.01);
bloomFilter.put("example data");

// Saving to a file
try (ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("bloomfilter.ser"))) {
    oos.writeObject(bloomFilter);
} catch (IOException e) {
    e.printStackTrace();
}

// Loading from the file
BloomFilter<String> loadedBloomFilter;
try (ObjectInputStream ois = new ObjectInputStream(new FileInputStream("bloomfilter.ser"))) {
    loadedBloomFilter = (BloomFilter<String>) ois.readObject();
} catch (IOException | ClassNotFoundException e) {
    e.printStackTrace();
}

// This example shows a BloomFilter and an example of correct serialization practices:
import com.google.common.hash.BloomFilter;
import com.google.common.hash.Funnels;

// BloomFilter instance with settings
BloomFilter<String> bloomFilter = BloomFilter.create(Funnels.stringFunnel(Charset.defaultCharset()), 1000, 0.01);

// Saving and loading using serialization 
// Saving the filter to a file
ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream("bloomfilter.bin"));
out.writeObject(bloomFilter);
out.close();

// Loading it back
ObjectInputStream in = new ObjectInputStream(new FileInputStream("bloomfilter.bin"));
BloomFilter<String> loadedFilter = (BloomFilter<String>) in.readObject();
in.close();