diff --git a/src/main/java/org/springframework/data/aerospike/cache/AerospikeCacheKey.java b/src/main/java/org/springframework/data/aerospike/cache/AerospikeCacheKey.java
index cb1f7d721..86a80a6ba 100644
--- a/src/main/java/org/springframework/data/aerospike/cache/AerospikeCacheKey.java
+++ b/src/main/java/org/springframework/data/aerospike/cache/AerospikeCacheKey.java
@@ -3,6 +3,9 @@
 import com.aerospike.client.Value;
 import lombok.Getter;
 
+/**
+ * Wrapper class used for caching with methods that receive either a String or a long number
+ */
 public class AerospikeCacheKey {
 
     @Getter
diff --git a/src/main/java/org/springframework/data/aerospike/cache/AerospikeCacheKeyProcessor.java b/src/main/java/org/springframework/data/aerospike/cache/AerospikeCacheKeyProcessor.java
index b10e9822e..f89c54e1d 100644
--- a/src/main/java/org/springframework/data/aerospike/cache/AerospikeCacheKeyProcessor.java
+++ b/src/main/java/org/springframework/data/aerospike/cache/AerospikeCacheKeyProcessor.java
@@ -1,5 +1,8 @@
 package org.springframework.data.aerospike.cache;
 
+/**
+ * Interface that provides methods used in caching
+ */
 public interface AerospikeCacheKeyProcessor {
 
     /**
diff --git a/src/main/java/org/springframework/data/aerospike/cache/AerospikeCacheKeyProcessorImpl.java b/src/main/java/org/springframework/data/aerospike/cache/AerospikeCacheKeyProcessorImpl.java
index b49a27357..035352db8 100644
--- a/src/main/java/org/springframework/data/aerospike/cache/AerospikeCacheKeyProcessorImpl.java
+++ b/src/main/java/org/springframework/data/aerospike/cache/AerospikeCacheKeyProcessorImpl.java
@@ -11,7 +11,7 @@
 public class AerospikeCacheKeyProcessorImpl implements AerospikeCacheKeyProcessor {
 
     @Getter
-    private static final Kryo kryoInstance = new Kryo();
+    private final Kryo kryoInstance = new Kryo();
 
     public AerospikeCacheKeyProcessorImpl() {
         configureKryo();