diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/dfs/DfsPackFileTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/dfs/DfsPackFileTest.java
index 82fc56347..77e5b7cb1 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/dfs/DfsPackFileTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/dfs/DfsPackFileTest.java
@@ -139,6 +139,7 @@ private static class TestPackLoadListener implements PackLoadListener {
 
 		int blockLoadCount;
 
+		@SuppressWarnings("boxing")
 		@Override
 		public void onIndexLoad(String packName, PackSource src, PackExt ext,
 				long size, Object loadedIdx) {
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/dfs/DfsReaderTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/dfs/DfsReaderTest.java
index 918f38805..eb8ceecd8 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/dfs/DfsReaderTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/dfs/DfsReaderTest.java
@@ -229,6 +229,7 @@ public void packLoadListener_has_repeatedCalls_openMultipleIndices() throws IOEx
 	private static class CounterPackLoadListener implements PackLoadListener {
 		final Map<PackExt, Integer> callsPerExt = new HashMap<>();
 
+		@SuppressWarnings("boxing")
 		@Override
 		public void onIndexLoad(String packName, PackSource src, PackExt ext, long size,
 				Object loadedIdx) {