diff --git a/src/test/java/fr/xephi/authme/util/ExceptionUtilsTest.java b/src/test/java/fr/xephi/authme/util/ExceptionUtilsTest.java
index e6931b08..b42fa97f 100644
--- a/src/test/java/fr/xephi/authme/util/ExceptionUtilsTest.java
+++ b/src/test/java/fr/xephi/authme/util/ExceptionUtilsTest.java
@@ -40,10 +40,10 @@ public class ExceptionUtilsTest {
     @Test
     public void shouldHandleCircularCausesGracefully() {
         // given
-        IllegalStateException ise = new IllegalStateException();
-        UnsupportedOperationException uoe = new UnsupportedOperationException(ise);
+        ExceptionWithSettableCause exceptionWithSettableCause = new ExceptionWithSettableCause();
+        UnsupportedOperationException uoe = new UnsupportedOperationException(exceptionWithSettableCause);
         ReflectiveOperationException roe = new ReflectiveOperationException(uoe);
-        ReflectionTestUtils.setField(Throwable.class, ise, "cause", roe);
+        exceptionWithSettableCause.cause = roe;
 
         // when
         NullPointerException resultNpe = ExceptionUtils.findThrowableInCause(NullPointerException.class, uoe);
@@ -65,4 +65,14 @@ public class ExceptionUtilsTest {
         // then
         assertThat(result, equalTo("[MalformedURLException]: Unrecognized URL format"));
     }
+
+    private static final class ExceptionWithSettableCause extends Exception {
+
+        Exception cause;
+
+        @Override
+        public synchronized Throwable getCause() {
+            return cause;
+        }
+    }
 }