diff --git a/src/test/java/tools/jackson/databind/testutil/UnlimitedLookupCache.java b/src/test/java/tools/jackson/databind/testutil/UnlimitedLookupCache.java
deleted file mode 100644
index c117a7f29c..0000000000
--- a/src/test/java/tools/jackson/databind/testutil/UnlimitedLookupCache.java
+++ /dev/null
@@ -1,66 +0,0 @@
-package tools.jackson.databind.testutil;
-
-import java.util.concurrent.ConcurrentHashMap;
-
-import tools.jackson.databind.util.LookupCache;
-
-/**
- * A LookupCache implementation that has no synchronization (like SimpleLookupCache does)
- * but that has the downside of not limiting the size of the cache.
- */
-public class UnlimitedLookupCache<K,V> implements LookupCache<K,V> {
-
-    private final int _initialEntries;
-    private final transient ConcurrentHashMap<K,V> _map;
-
-    public UnlimitedLookupCache(int initialEntries)
-    {
-        _initialEntries = initialEntries;
-        // We'll use concurrency level of 4, seems reasonable
-        _map = new ConcurrentHashMap<K,V>(initialEntries, 0.8f, 4);
-    }
-
-    @Override
-    public LookupCache<K, V> snapshot() {
-        return new UnlimitedLookupCache<K,V>(_initialEntries);
-    }
-
-    @Override
-    public LookupCache<K, V> emptyCopy() {
-        return snapshot();
-    }
-
-    /*
-    @Override
-    public void contents(BiConsumer<K, V> consumer) {
-        for (Map.Entry<K,V> entry : _map.entrySet()) {
-            consumer.accept(entry.getKey(), entry.getValue());
-        }
-    }
-    */
-
-    @Override
-    public int size() {
-        return _map.size();
-    }
-
-    @Override
-    public V get(Object key) {
-        return _map.get(key);
-    }
-
-    @Override
-    public V put(K key, V value) {
-        return _map.put(key, value);
-    }
-
-    @Override
-    public V putIfAbsent(K key, V value) {
-        return _map.putIfAbsent(key, value);
-    }
-
-    @Override
-    public void clear() {
-        _map.clear();
-    }
-}
diff --git a/src/test/java/tools/jackson/databind/util/UnlimitedLookupCacheTest.java b/src/test/java/tools/jackson/databind/util/UnlimitedLookupCacheTest.java
deleted file mode 100644
index 9b2f150e29..0000000000
--- a/src/test/java/tools/jackson/databind/util/UnlimitedLookupCacheTest.java
+++ /dev/null
@@ -1,44 +0,0 @@
-package tools.jackson.databind.util;
-
-import org.junit.jupiter.api.Test;
-
-import tools.jackson.databind.JavaType;
-import tools.jackson.databind.testutil.DatabindTestUtil;
-import tools.jackson.databind.testutil.UnlimitedLookupCache;
-import tools.jackson.databind.type.TypeFactory;
-
-import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.junit.jupiter.api.Assertions.assertNotNull;
-import static org.junit.jupiter.api.Assertions.assertNull;
-
-public class UnlimitedLookupCacheTest
-    extends DatabindTestUtil
-{
-    @Test
-    public void testCache() {
-        UnlimitedLookupCache<Long, String> cache = new UnlimitedLookupCache<>(4);
-        assertNull(cache.get(1000L));
-        assertNull(cache.put(1000L, "Thousand"));
-        assertEquals("Thousand", cache.get(1000L));
-        assertEquals("Thousand", cache.putIfAbsent(1000L, "Míle"));
-        assertEquals("Thousand", cache.get(1000L));
-        assertEquals("Thousand", cache.put(1000L, "Míle"));
-        assertEquals("Míle", cache.get(1000L));
-        cache.clear();
-        assertNull(cache.put(1000L, "Thousand"));
-    }
-
-    @Test
-    public void testCompatibility()
-    {
-        UnlimitedLookupCache<Object, JavaType> cache = new UnlimitedLookupCache<>(4);
-        TypeFactory tf = defaultTypeFactory().withCache(cache);
-        assertNotNull(tf); // just to get rid of warning
-
-        //TODO find way to inject the `tf` instance into an ObjectMapper (via MapperBuilder?)
-
-        //ObjectMapper mapper = new ObjectMapper();
-        //mapper.setTypeFactory(tf);
-        //assertEquals("1000", mapper.writeValueAsString(1000));
-    }
-}