close cache instances properly

libraries/src/test/java/com/baeldung/jcache/CacheLoaderTest.java

@@ -9,6 +9,7 @@ import javax.cache.configuration.FactoryBuilder;
 import javax.cache.configuration.MutableConfiguration;
 import javax.cache.spi.CachingProvider;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
@@ -32,4 +33,9 @@ public class CacheLoaderTest {
             assertEquals("fromCache" + i, value);
         }
     }
+    
+    @After
+    public void closeCache() {
+        cache.close();
+    }
 }

libraries/src/test/java/com/baeldung/jcache/EntryProcessorTest.java

@@ -8,6 +8,7 @@ import javax.cache.Caching;
 import javax.cache.configuration.MutableConfiguration;
 import javax.cache.spi.CachingProvider;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
@@ -29,4 +30,9 @@ public class EntryProcessorTest {
         this.cache.invoke("key", new SimpleEntryProcessor());
         assertEquals("value - modified", cache.get("key"));
     }
+
+    @After
+    public void closeCache() {
+        cache.close();
+    }
 }

libraries/src/test/java/com/baeldung/jcache/EventListenerTest.java

@@ -10,6 +10,7 @@ import javax.cache.configuration.MutableCacheEntryListenerConfiguration;
 import javax.cache.configuration.MutableConfiguration;
 import javax.cache.spi.CachingProvider;
 
+import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
@@ -43,4 +44,9 @@ public class EventListenerTest {
         assertEquals(true, this.listener.getUpdated());
     }
 
+    @After
+    public void closeCache() {
+        cache.close();
+    }
+
 }