Suppress boxing warning

Change-Id: I90226674320841774ad691c84609e3fe71bf7852
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit.test/tst/org/eclipse/jgit/transport/UploadPackTest.java

@@ -387,6 +387,7 @@ public class UploadPackTest {
 	}
 
 	@Test
+	@SuppressWarnings("boxing")
 	public void testV2EmptyRequest() throws Exception {
 		ByteArrayInputStream recvStream = uploadPackV2(PacketLineIn.END);
 		// Verify that there is nothing more after the capability