Javadoc typos

src/test/java/org/apache/commons/collections4/keyvalue/MultiKeyTest.java

@@ -140,7 +140,7 @@ public class MultiKeyTest {
         mk = new MultiKey<>(keys, false);
         assertArrayEquals(new Object[]{THREE, FOUR, ONE, TWO}, mk.getKeys());
         // change key - don't do this!
-        // the hashcode of the MultiKey is now broken
+        // the hash code of the MultiKey is now broken
         keys[3] = FIVE;
         assertArrayEquals(new Object[]{THREE, FOUR, ONE, FIVE}, mk.getKeys());
     }

src/test/java/org/apache/commons/collections4/map/LRUMapTest.java

@@ -450,7 +450,7 @@ public class LRUMapTest<K, V> extends AbstractOrderedMapTest<K, V> {
 
         @Override
         public int hashCode() {
-            // always return the same hashcode
+            // always return the same hash code
             // that way, it will end up in the same bucket
             return 12;
         }