Fixed TestCollectionCache

Change-Id: Ibbf1d5e2f2cd31fc8f4b910785a06c402b709268
diff --git a/Changes b/Changes
index 557d0e6..828386e 100644
--- a/Changes
+++ b/Changes
@@ -3,6 +3,7 @@
     - [cleanup] Added test coverage checking with
       $ mvn cobertura:cobertura (diewald, kupietz)
     - [cleanup] Added test statistics with referTo and pubDate (margaretha)
+    - [cleanup] Fixed TestCollectionCache (margaretha)
 
 0.59.2 2020-07-24
     - [feature] Add fingerprint method to index (diewald)
diff --git a/src/test/java/de/ids_mannheim/korap/collection/TestCollectionCache.java b/src/test/java/de/ids_mannheim/korap/collection/TestCollectionCache.java
index 9b73eb2..ee3fef4 100644
--- a/src/test/java/de/ids_mannheim/korap/collection/TestCollectionCache.java
+++ b/src/test/java/de/ids_mannheim/korap/collection/TestCollectionCache.java
@@ -15,6 +15,7 @@
 
     @Test
     public void testNullCache() throws IOException{
+        KrillCollection kc = new KrillCollection();
         Cache temp = KrillCollection.cache;
         assertTrue(KrillCollection.cache != null);