Tests: Only check that the cache size can shrink

core/src/test/java/com/github/weisj/darklaf/core/test/IconCacheTest.java

@@ -40,8 +40,9 @@ class IconCacheTest implements NonThreadSafeTest {
         IconSet.ICON_LOADER.clearCache();
         UIDefaults defaults = new DarkLaf().getDefaults();
         Assertions.assertFalse(IconSet.ICON_LOADER.isCacheEmpty());
+        int size = IconSet.ICON_LOADER.cacheSize();
         defaults.clear();
-        waitForGarbageCollection(() -> !IconSet.ICON_LOADER.isCacheEmpty());
+        waitForGarbageCollection(() -> IconSet.ICON_LOADER.cacheSize() == size);
     }
 
     @SuppressWarnings({"unused"})

utils/src/test/java/com/github/weisj/darklaf/util/cache/SoftCacheTest.java

@@ -45,9 +45,10 @@ class SoftCacheTest {
         Assertions.assertEquals(count, hardReferences.size());
         Assertions.assertEquals(count, cache.size());
 
+        int cacheSize = cache.size();
         hardReferences.clear();
 
-        waitForGarbageCollection(() -> !cache.isEmpty());
+        waitForGarbageCollection(() -> cache.size() == cacheSize);
     }
 
     @SuppressWarnings({"unused"})