diff --git a/httpmime/src/test/java/org/apache/http/entity/mime/TestMultipartContentBody.java b/httpmime/src/test/java/org/apache/http/entity/mime/TestMultipartContentBody.java
index bee0fa27a..4a6fac22f 100644
--- a/httpmime/src/test/java/org/apache/http/entity/mime/TestMultipartContentBody.java
+++ b/httpmime/src/test/java/org/apache/http/entity/mime/TestMultipartContentBody.java
@@ -67,12 +67,12 @@ public class TestMultipartContentBody {
 
     @Test(expected=IllegalArgumentException.class)
     public void testStringBodyInvalidConstruction1() throws Exception {
-        new StringBody(null, ContentType.DEFAULT_TEXT);
+    	Assert.assertNotNull(new StringBody(null, ContentType.DEFAULT_TEXT)); // avoid unused warning
     }
 
     @Test(expected=IllegalArgumentException.class)
     public void testStringBodyInvalidConstruction2() throws Exception {
-        new StringBody("stuff", (ContentType) null);
+    	Assert.assertNotNull(new StringBody("stuff", (ContentType) null)); // avoid unused warning
     }
 
     @Test