diff --git a/org.eclipse.jgit.http.server/src/org/eclipse/jgit/http/server/InfoPacksServlet.java b/org.eclipse.jgit.http.server/src/org/eclipse/jgit/http/server/InfoPacksServlet.java
index c3d7255..e90580b 100644
--- a/org.eclipse.jgit.http.server/src/org/eclipse/jgit/http/server/InfoPacksServlet.java
+++ b/org.eclipse.jgit.http.server/src/org/eclipse/jgit/http/server/InfoPacksServlet.java
@@ -20,7 +20,7 @@
 import javax.servlet.http.HttpServletResponse;
 
 import org.eclipse.jgit.internal.storage.file.ObjectDirectory;
-import org.eclipse.jgit.internal.storage.file.PackFile;
+import org.eclipse.jgit.internal.storage.file.Pack;
 import org.eclipse.jgit.lib.ObjectDatabase;
 
 /** Sends the current list of pack files, sorted most recent first. */
@@ -38,7 +38,7 @@
 		final StringBuilder out = new StringBuilder();
 		final ObjectDatabase db = getRepository(req).getObjectDatabase();
 		if (db instanceof ObjectDirectory) {
-			for (PackFile pack : ((ObjectDirectory) db).getPacks()) {
+			for (Pack pack : ((ObjectDirectory) db).getPacks()) {
 				out.append("P ");
 				out.append(pack.getPackFile().getName());
 				out.append('\n');
diff --git a/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/TestRepository.java b/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/TestRepository.java
index a5b3b1f..e3eb2c5 100644
--- a/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/TestRepository.java
+++ b/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/TestRepository.java
@@ -43,7 +43,7 @@
 import org.eclipse.jgit.internal.storage.file.FileRepository;
 import org.eclipse.jgit.internal.storage.file.LockFile;
 import org.eclipse.jgit.internal.storage.file.ObjectDirectory;
-import org.eclipse.jgit.internal.storage.file.PackFile;
+import org.eclipse.jgit.internal.storage.file.Pack;
 import org.eclipse.jgit.internal.storage.file.PackIndex.MutableEntry;
 import org.eclipse.jgit.internal.storage.pack.PackWriter;
 import org.eclipse.jgit.lib.AnyObjectId;
@@ -773,7 +773,7 @@
 			rw.writeInfoRefs();
 
 			final StringBuilder w = new StringBuilder();
-			for (PackFile p : fr.getObjectDatabase().getPacks()) {
+			for (Pack p : fr.getObjectDatabase().getPacks()) {
 				w.append("P ");
 				w.append(p.getPackFile().getName());
 				w.append('\n');
@@ -954,7 +954,7 @@
 	}
 
 	private static void prunePacked(ObjectDirectory odb) throws IOException {
-		for (PackFile p : odb.getPacks()) {
+		for (Pack p : odb.getPacks()) {
 			for (MutableEntry e : p)
 				FileUtils.delete(odb.fileFor(e.toObjectId()));
 		}
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/GcBasicPackingTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/GcBasicPackingTest.java
index d007dd4..42e4238 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/GcBasicPackingTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/GcBasicPackingTest.java
@@ -157,7 +157,7 @@
 				.create();
 		tr.update("refs/tags/t1", second);
 
-		Collection<PackFile> oldPacks = tr.getRepository().getObjectDatabase()
+		Collection<Pack> oldPacks = tr.getRepository().getObjectDatabase()
 				.getPacks();
 		assertEquals(0, oldPacks.size());
 		stats = gc.getStatistics();
@@ -171,7 +171,7 @@
 		stats = gc.getStatistics();
 		assertEquals(0, stats.numberOfLooseObjects);
 
-		List<PackFile> packs = new ArrayList<>(
+		List<Pack> packs = new ArrayList<>(
 				repo.getObjectDatabase().getPacks());
 		assertEquals(11, packs.get(0).getObjectCount());
 	}
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/GcConcurrentTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/GcConcurrentTest.java
index bb8455f..5cac1e3 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/GcConcurrentTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/GcConcurrentTest.java
@@ -156,8 +156,8 @@
 		}
 	}
 
-	PackFile getSinglePack(FileRepository r) {
-		Collection<PackFile> packs = r.getObjectDatabase().getPacks();
+	Pack getSinglePack(FileRepository r) {
+		Collection<Pack> packs = r.getObjectDatabase().getPacks();
 		assertEquals(1, packs.size());
 		return packs.iterator().next();
 	}
@@ -206,11 +206,11 @@
 		SampleDataRepositoryTestCase.copyCGitTestPacks(repo);
 		ExecutorService executor = Executors.newSingleThreadExecutor();
 		final CountDownLatch latch = new CountDownLatch(1);
-		Future<Collection<PackFile>> result = executor.submit(() -> {
+		Future<Collection<Pack>> result = executor.submit(() -> {
 			long start = System.currentTimeMillis();
 			System.out.println("starting gc");
 			latch.countDown();
-			Collection<PackFile> r = gc.gc();
+			Collection<Pack> r = gc.gc();
 			System.out.println(
 					"gc took " + (System.currentTimeMillis() - start) + " ms");
 			return r;
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/GcKeepFilesTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/GcKeepFilesTest.java
index e155958..8472983 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/GcKeepFilesTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/GcKeepFilesTest.java
@@ -36,9 +36,9 @@
 		assertEquals(4, stats.numberOfPackedObjects);
 		assertEquals(1, stats.numberOfPackFiles);
 
-		Iterator<PackFile> packIt = repo.getObjectDatabase().getPacks()
+		Iterator<Pack> packIt = repo.getObjectDatabase().getPacks()
 				.iterator();
-		PackFile singlePack = packIt.next();
+		Pack singlePack = packIt.next();
 		assertFalse(packIt.hasNext());
 		String packFileName = singlePack.getPackFile().getPath();
 		String keepFileName = packFileName.substring(0,
@@ -58,7 +58,7 @@
 		assertEquals(2, stats.numberOfPackFiles);
 
 		// check that no object is packed twice
-		Iterator<PackFile> packs = repo.getObjectDatabase().getPacks()
+		Iterator<Pack> packs = repo.getObjectDatabase().getPacks()
 				.iterator();
 		PackIndex ind1 = packs.next().getIndex();
 		assertEquals(4, ind1.getObjectCount());
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/PackFileSnapshotTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/PackFileSnapshotTest.java
index 1f1e094..7c32ce7 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/PackFileSnapshotTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/PackFileSnapshotTest.java
@@ -72,14 +72,14 @@
 		c.setInt(ConfigConstants.CONFIG_GC_SECTION, null,
 				ConfigConstants.CONFIG_KEY_AUTOPACKLIMIT, 1);
 		c.save();
-		Collection<PackFile> packs = gc(Deflater.NO_COMPRESSION);
+		Collection<Pack> packs = gc(Deflater.NO_COMPRESSION);
 		assertEquals("expected 1 packfile after gc", 1, packs.size());
-		PackFile p1 = packs.iterator().next();
+		Pack p1 = packs.iterator().next();
 		PackFileSnapshot snapshot = p1.getFileSnapshot();
 
 		packs = gc(Deflater.BEST_COMPRESSION);
 		assertEquals("expected 1 packfile after gc", 1, packs.size());
-		PackFile p2 = packs.iterator().next();
+		Pack p2 = packs.iterator().next();
 		File pf = p2.getPackFile();
 
 		// changing compression level with aggressive gc may change size,
@@ -153,11 +153,11 @@
 		createTestRepo(testDataSeed, testDataLength);
 
 		// repack to create initial packfile
-		PackFile pf = repackAndCheck(5, null, null, null);
-		Path packFilePath = pf.getPackFile().toPath();
-		AnyObjectId chk1 = pf.getPackChecksum();
-		String name = pf.getPackName();
-		Long length = Long.valueOf(pf.getPackFile().length());
+		Pack p = repackAndCheck(5, null, null, null);
+		Path packFilePath = p.getPackFile().toPath();
+		AnyObjectId chk1 = p.getPackChecksum();
+		String name = p.getPackName();
+		Long length = Long.valueOf(p.getPackFile().length());
 		FS fs = db.getFS();
 		Instant m1 = fs.lastModifiedInstant(packFilePath);
 
@@ -207,16 +207,16 @@
 		createTestRepo(testDataSeed, testDataLength);
 
 		// Repack to create initial packfile. Make a copy of it
-		PackFile pf = repackAndCheck(5, null, null, null);
-		Path packFilePath = pf.getPackFile().toPath();
+		Pack p = repackAndCheck(5, null, null, null);
+		Path packFilePath = p.getPackFile().toPath();
 		Path fn = packFilePath.getFileName();
 		assertNotNull(fn);
 		String packFileName = fn.toString();
 		Path packFileBasePath = packFilePath
 				.resolveSibling(packFileName.replaceAll(".pack", ""));
-		AnyObjectId chk1 = pf.getPackChecksum();
-		String name = pf.getPackName();
-		Long length = Long.valueOf(pf.getPackFile().length());
+		AnyObjectId chk1 = p.getPackChecksum();
+		String name = p.getPackName();
+		Long length = Long.valueOf(p.getPackFile().length());
 		copyPack(packFileBasePath, "", ".copy1");
 
 		// Repack to create second packfile. Make a copy of it
@@ -280,10 +280,10 @@
 				Paths.get(base + ".pack" + dstSuffix));
 	}
 
-	private PackFile repackAndCheck(int compressionLevel, String oldName,
+	private Pack repackAndCheck(int compressionLevel, String oldName,
 			Long oldLength, AnyObjectId oldChkSum)
 			throws IOException, ParseException {
-		PackFile p = getSinglePack(gc(compressionLevel));
+		Pack p = getSinglePack(gc(compressionLevel));
 		File pf = p.getPackFile();
 		// The following two assumptions should not cause the test to fail. If
 		// on a certain platform we get packfiles (containing the same git
@@ -298,14 +298,14 @@
 		return p;
 	}
 
-	private PackFile getSinglePack(Collection<PackFile> packs) {
-		Iterator<PackFile> pIt = packs.iterator();
-		PackFile p = pIt.next();
+	private Pack getSinglePack(Collection<Pack> packs) {
+		Iterator<Pack> pIt = packs.iterator();
+		Pack p = pIt.next();
 		assertFalse(pIt.hasNext());
 		return p;
 	}
 
-	private Collection<PackFile> gc(int compressionLevel)
+	private Collection<Pack> gc(int compressionLevel)
 			throws IOException, ParseException {
 		GC gc = new GC(db);
 		PackConfig pc = new PackConfig(db.getConfig());
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/PackInserterTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/PackInserterTest.java
index 8c56480..8504303 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/PackInserterTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/PackInserterTest.java
@@ -160,7 +160,7 @@
 		}
 
 		assertPacksOnly();
-		List<PackFile> packs = listPacks();
+		List<Pack> packs = listPacks();
 		assertEquals(1, packs.size());
 		assertEquals(3, packs.get(0).getObjectCount());
 
@@ -193,7 +193,7 @@
 		}
 
 		assertPacksOnly();
-		List<PackFile> packs = listPacks();
+		List<Pack> packs = listPacks();
 		assertEquals(2, packs.size());
 		assertEquals(1, packs.get(0).getObjectCount());
 		assertEquals(1, packs.get(1).getObjectCount());
@@ -216,9 +216,9 @@
 		}
 
 		assertPacksOnly();
-		Collection<PackFile> packs = listPacks();
+		Collection<Pack> packs = listPacks();
 		assertEquals(1, packs.size());
-		PackFile p = packs.iterator().next();
+		Pack p = packs.iterator().next();
 		assertEquals(1, p.getObjectCount());
 
 		try (ObjectReader reader = db.newObjectReader()) {
@@ -237,9 +237,9 @@
 		}
 
 		assertPacksOnly();
-		List<PackFile> packs = listPacks();
+		List<Pack> packs = listPacks();
 		assertEquals(1, packs.size());
-		PackFile pack = packs.get(0);
+		Pack pack = packs.get(0);
 		assertEquals(1, pack.getObjectCount());
 
 		String inode = getInode(pack.getPackFile());
@@ -372,7 +372,7 @@
 		}
 
 		assertPacksOnly();
-		List<PackFile> packs = listPacks();
+		List<Pack> packs = listPacks();
 		assertEquals(1, packs.size());
 		assertEquals(2, packs.get(0).getObjectCount());
 
@@ -489,16 +489,16 @@
 		}
 	}
 
-	private List<PackFile> listPacks() throws Exception {
-		List<PackFile> fromOpenDb = listPacks(db);
-		List<PackFile> reopened;
+	private List<Pack> listPacks() throws Exception {
+		List<Pack> fromOpenDb = listPacks(db);
+		List<Pack> reopened;
 		try (FileRepository db2 = new FileRepository(db.getDirectory())) {
 			reopened = listPacks(db2);
 		}
 		assertEquals(fromOpenDb.size(), reopened.size());
 		for (int i = 0 ; i < fromOpenDb.size(); i++) {
-			PackFile a = fromOpenDb.get(i);
-			PackFile b = reopened.get(i);
+			Pack a = fromOpenDb.get(i);
+			Pack b = reopened.get(i);
 			assertEquals(a.getPackName(), b.getPackName());
 			assertEquals(
 					a.getPackFile().getAbsolutePath(), b.getPackFile().getAbsolutePath());
@@ -508,9 +508,9 @@
 		return fromOpenDb;
 	}
 
-	private static List<PackFile> listPacks(FileRepository db) throws Exception {
+	private static List<Pack> listPacks(FileRepository db) throws Exception {
 		return db.getObjectDatabase().getPacks().stream()
-				.sorted(comparing(PackFile::getPackName)).collect(toList());
+				.sorted(comparing(Pack::getPackName)).collect(toList());
 	}
 
 	private PackInserter newInserter() {
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/PackFileTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/PackTest.java
similarity index 94%
rename from org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/PackFileTest.java
rename to org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/PackTest.java
index 97a86e2..182e422 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/PackFileTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/PackTest.java
@@ -57,7 +57,7 @@
 import org.junit.Before;
 import org.junit.Test;
 
-public class PackFileTest extends LocalDiskRepositoryTestCase {
+public class PackTest extends LocalDiskRepositoryTestCase {
 	private int streamThreshold = 16 * 1024;
 
 	private TestRng rng;
@@ -228,21 +228,21 @@
 			PackedObjectInfo a = new PackedObjectInfo(idA);
 			PackedObjectInfo b = new PackedObjectInfo(idB);
 
-			TemporaryBuffer.Heap pack = new TemporaryBuffer.Heap(64 * 1024);
-			packHeader(pack, 2);
-			a.setOffset(pack.length());
-			objectHeader(pack, Constants.OBJ_BLOB, base.length);
-			deflate(pack, base);
+			TemporaryBuffer.Heap packContents = new TemporaryBuffer.Heap(64 * 1024);
+			packHeader(packContents, 2);
+			a.setOffset(packContents.length());
+			objectHeader(packContents, Constants.OBJ_BLOB, base.length);
+			deflate(packContents, base);
 
 			ByteArrayOutputStream tmp = new ByteArrayOutputStream();
 			DeltaEncoder de = new DeltaEncoder(tmp, base.length, 3L << 30);
 			de.copy(0, 1);
 			byte[] delta = tmp.toByteArray();
-			b.setOffset(pack.length());
-			objectHeader(pack, Constants.OBJ_REF_DELTA, delta.length);
-			idA.copyRawTo(pack);
-			deflate(pack, delta);
-			byte[] footer = digest(pack);
+			b.setOffset(packContents.length());
+			objectHeader(packContents, Constants.OBJ_REF_DELTA, delta.length);
+			idA.copyRawTo(packContents);
+			deflate(packContents, delta);
+			byte[] footer = digest(packContents);
 
 			File dir = new File(repo.getObjectDatabase().getDirectory(),
 					"pack");
@@ -250,7 +250,7 @@
 			File idxName = new File(dir, idA.name() + ".idx");
 
 			try (FileOutputStream f = new FileOutputStream(packName)) {
-				f.write(pack.toByteArray());
+				f.write(packContents.toByteArray());
 			}
 
 			try (FileOutputStream f = new FileOutputStream(idxName)) {
@@ -261,14 +261,14 @@
 				new PackIndexWriterV1(f).write(list, footer);
 			}
 
-			PackFile packFile = new PackFile(packName, PackExt.INDEX.getBit());
+			Pack pack = new Pack(packName, PackExt.INDEX.getBit());
 			try {
-				packFile.get(wc, b);
+				pack.get(wc, b);
 				fail("expected LargeObjectException.ExceedsByteArrayLimit");
 			} catch (LargeObjectException.ExceedsByteArrayLimit bad) {
 				assertNull(bad.getObjectId());
 			} finally {
-				packFile.close();
+				pack.close();
 			}
 		}
 	}
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/PackWriterTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/PackWriterTest.java
index c90310e..214ddb9 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/PackWriterTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/PackWriterTest.java
@@ -72,7 +72,7 @@
 
 	private ByteArrayOutputStream os;
 
-	private PackFile pack;
+	private Pack pack;
 
 	private ObjectInserter inserter;
 
@@ -840,7 +840,7 @@
 		p.setAllowThin(thin);
 		p.setIndexVersion(2);
 		p.parse(NullProgressMonitor.INSTANCE);
-		pack = p.getPackFile();
+		pack = p.getPack();
 		assertNotNull("have PackFile after parsing", pack);
 	}
 
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/T0004_PackReaderTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/T0004_PackReaderTest.java
index ee4c9b1..8f1371e 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/T0004_PackReaderTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/T0004_PackReaderTest.java
@@ -32,8 +32,8 @@
 		final ObjectId id;
 		final ObjectLoader or;
 
-		PackFile pr = null;
-		for (PackFile p : db.getObjectDatabase().getPacks()) {
+		Pack pr = null;
+		for (Pack p : db.getObjectDatabase().getPacks()) {
 			if (PACK_NAME.equals(p.getPackName())) {
 				pr = p;
 				break;
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/transport/PackParserTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/transport/PackParserTest.java
index 07c236d..60b8098 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/transport/PackParserTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/transport/PackParserTest.java
@@ -29,7 +29,7 @@
 import org.eclipse.jgit.errors.TooLargeObjectInPackException;
 import org.eclipse.jgit.internal.JGitText;
 import org.eclipse.jgit.internal.storage.file.ObjectDirectoryPackParser;
-import org.eclipse.jgit.internal.storage.file.PackFile;
+import org.eclipse.jgit.internal.storage.file.Pack;
 import org.eclipse.jgit.junit.JGitTestUtil;
 import org.eclipse.jgit.junit.RepositoryTestCase;
 import org.eclipse.jgit.junit.TestRepository;
@@ -63,16 +63,16 @@
 		try (InputStream is = new FileInputStream(packFile)) {
 			ObjectDirectoryPackParser p = (ObjectDirectoryPackParser) index(is);
 			p.parse(NullProgressMonitor.INSTANCE);
-			PackFile file = p.getPackFile();
+			Pack pack = p.getPack();
 
-			assertTrue(file.hasObject(ObjectId.fromString("4b825dc642cb6eb9a060e54bf8d69288fbee4904")));
-			assertTrue(file.hasObject(ObjectId.fromString("540a36d136cf413e4b064c2b0e0a4db60f77feab")));
-			assertTrue(file.hasObject(ObjectId.fromString("5b6e7c66c276e7610d4a73c70ec1a1f7c1003259")));
-			assertTrue(file.hasObject(ObjectId.fromString("6ff87c4664981e4397625791c8ea3bbb5f2279a3")));
-			assertTrue(file.hasObject(ObjectId.fromString("82c6b885ff600be425b4ea96dee75dca255b69e7")));
-			assertTrue(file.hasObject(ObjectId.fromString("902d5476fa249b7abc9d84c611577a81381f0327")));
-			assertTrue(file.hasObject(ObjectId.fromString("aabf2ffaec9b497f0950352b3e582d73035c2035")));
-			assertTrue(file.hasObject(ObjectId.fromString("c59759f143fb1fe21c197981df75a7ee00290799")));
+			assertTrue(pack.hasObject(ObjectId.fromString("4b825dc642cb6eb9a060e54bf8d69288fbee4904")));
+			assertTrue(pack.hasObject(ObjectId.fromString("540a36d136cf413e4b064c2b0e0a4db60f77feab")));
+			assertTrue(pack.hasObject(ObjectId.fromString("5b6e7c66c276e7610d4a73c70ec1a1f7c1003259")));
+			assertTrue(pack.hasObject(ObjectId.fromString("6ff87c4664981e4397625791c8ea3bbb5f2279a3")));
+			assertTrue(pack.hasObject(ObjectId.fromString("82c6b885ff600be425b4ea96dee75dca255b69e7")));
+			assertTrue(pack.hasObject(ObjectId.fromString("902d5476fa249b7abc9d84c611577a81381f0327")));
+			assertTrue(pack.hasObject(ObjectId.fromString("aabf2ffaec9b497f0950352b3e582d73035c2035")));
+			assertTrue(pack.hasObject(ObjectId.fromString("c59759f143fb1fe21c197981df75a7ee00290799")));
 		}
 	}
 
@@ -88,20 +88,20 @@
 		try (InputStream is = new FileInputStream(packFile)) {
 			ObjectDirectoryPackParser p = (ObjectDirectoryPackParser) index(is);
 			p.parse(NullProgressMonitor.INSTANCE);
-			PackFile file = p.getPackFile();
+			Pack pack = p.getPack();
 
-			assertTrue(file.hasObject(ObjectId.fromString("02ba32d3649e510002c21651936b7077aa75ffa9")));
-			assertTrue(file.hasObject(ObjectId.fromString("0966a434eb1a025db6b71485ab63a3bfbea520b6")));
-			assertTrue(file.hasObject(ObjectId.fromString("09efc7e59a839528ac7bda9fa020dc9101278680")));
-			assertTrue(file.hasObject(ObjectId.fromString("0a3d7772488b6b106fb62813c4d6d627918d9181")));
-			assertTrue(file.hasObject(ObjectId.fromString("1004d0d7ac26fbf63050a234c9b88a46075719d3")));
-			assertTrue(file.hasObject(ObjectId.fromString("10da5895682013006950e7da534b705252b03be6")));
-			assertTrue(file.hasObject(ObjectId.fromString("1203b03dc816ccbb67773f28b3c19318654b0bc8")));
-			assertTrue(file.hasObject(ObjectId.fromString("15fae9e651043de0fd1deef588aa3fbf5a7a41c6")));
-			assertTrue(file.hasObject(ObjectId.fromString("16f9ec009e5568c435f473ba3a1df732d49ce8c3")));
-			assertTrue(file.hasObject(ObjectId.fromString("1fd7d579fb6ae3fe942dc09c2c783443d04cf21e")));
-			assertTrue(file.hasObject(ObjectId.fromString("20a8ade77639491ea0bd667bf95de8abf3a434c8")));
-			assertTrue(file.hasObject(ObjectId.fromString("2675188fd86978d5bc4d7211698b2118ae3bf658")));
+			assertTrue(pack.hasObject(ObjectId.fromString("02ba32d3649e510002c21651936b7077aa75ffa9")));
+			assertTrue(pack.hasObject(ObjectId.fromString("0966a434eb1a025db6b71485ab63a3bfbea520b6")));
+			assertTrue(pack.hasObject(ObjectId.fromString("09efc7e59a839528ac7bda9fa020dc9101278680")));
+			assertTrue(pack.hasObject(ObjectId.fromString("0a3d7772488b6b106fb62813c4d6d627918d9181")));
+			assertTrue(pack.hasObject(ObjectId.fromString("1004d0d7ac26fbf63050a234c9b88a46075719d3")));
+			assertTrue(pack.hasObject(ObjectId.fromString("10da5895682013006950e7da534b705252b03be6")));
+			assertTrue(pack.hasObject(ObjectId.fromString("1203b03dc816ccbb67773f28b3c19318654b0bc8")));
+			assertTrue(pack.hasObject(ObjectId.fromString("15fae9e651043de0fd1deef588aa3fbf5a7a41c6")));
+			assertTrue(pack.hasObject(ObjectId.fromString("16f9ec009e5568c435f473ba3a1df732d49ce8c3")));
+			assertTrue(pack.hasObject(ObjectId.fromString("1fd7d579fb6ae3fe942dc09c2c783443d04cf21e")));
+			assertTrue(pack.hasObject(ObjectId.fromString("20a8ade77639491ea0bd667bf95de8abf3a434c8")));
+			assertTrue(pack.hasObject(ObjectId.fromString("2675188fd86978d5bc4d7211698b2118ae3bf658")));
 			// and lots more...
 		}
 	}
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/errors/NoPackSignatureException.java b/org.eclipse.jgit/src/org/eclipse/jgit/errors/NoPackSignatureException.java
index c3b1df9..a37b8be 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/errors/NoPackSignatureException.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/errors/NoPackSignatureException.java
@@ -13,8 +13,7 @@
 import java.io.IOException;
 
 /**
- * Thrown when a PackFile is found not to contain the pack signature defined by
- * git.
+ * Thrown when a Pack is found not to contain the pack signature defined by git.
  *
  * @since 4.5
  */
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/errors/PackInvalidException.java b/org.eclipse.jgit/src/org/eclipse/jgit/errors/PackInvalidException.java
index c484984..1fd8086 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/errors/PackInvalidException.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/errors/PackInvalidException.java
@@ -17,7 +17,7 @@
 import org.eclipse.jgit.internal.JGitText;
 
 /**
- * Thrown when a PackFile previously failed and is known to be unusable
+ * Thrown when a Pack previously failed and is known to be unusable
  */
 public class PackInvalidException extends IOException {
 	private static final long serialVersionUID = 1L;
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/errors/PackMismatchException.java b/org.eclipse.jgit/src/org/eclipse/jgit/errors/PackMismatchException.java
index ad5664c..44b8e01 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/errors/PackMismatchException.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/errors/PackMismatchException.java
@@ -13,7 +13,7 @@
 import java.io.IOException;
 
 /**
- * Thrown when a PackFile no longer matches the PackIndex.
+ * Thrown when a Pack no longer matches the PackIndex.
  */
 public class PackMismatchException extends IOException {
 	private static final long serialVersionUID = 1L;
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/errors/UnsupportedPackVersionException.java b/org.eclipse.jgit/src/org/eclipse/jgit/errors/UnsupportedPackVersionException.java
index 7538229..07aa756 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/errors/UnsupportedPackVersionException.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/errors/UnsupportedPackVersionException.java
@@ -16,7 +16,7 @@
 import org.eclipse.jgit.internal.JGitText;
 
 /**
- * Thrown when a PackFile uses a pack version not supported by JGit.
+ * Thrown when a Pack uses a pack version not supported by JGit.
  *
  * @since 4.5
  */
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ByteArrayWindow.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ByteArrayWindow.java
index 45d9c85..1036535 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ByteArrayWindow.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ByteArrayWindow.java
@@ -25,7 +25,7 @@
 final class ByteArrayWindow extends ByteWindow {
 	private final byte[] array;
 
-	ByteArrayWindow(PackFile pack, long o, byte[] b) {
+	ByteArrayWindow(Pack pack, long o, byte[] b) {
 		super(pack, o, b.length);
 		array = b;
 	}
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ByteBufferWindow.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ByteBufferWindow.java
index 8703216..b687757 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ByteBufferWindow.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ByteBufferWindow.java
@@ -27,7 +27,7 @@
 final class ByteBufferWindow extends ByteWindow {
 	private final ByteBuffer buffer;
 
-	ByteBufferWindow(PackFile pack, long o, ByteBuffer b) {
+	ByteBufferWindow(Pack pack, long o, ByteBuffer b) {
 		super(pack, o, b.capacity());
 		buffer = b;
 	}
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ByteWindow.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ByteWindow.java
index 159f31c..31e7ead 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ByteWindow.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ByteWindow.java
@@ -27,7 +27,7 @@
  * </p>
  */
 abstract class ByteWindow {
-	protected final PackFile pack;
+	protected final Pack pack;
 
 	protected final long start;
 
@@ -37,13 +37,13 @@
 	 * Constructor for ByteWindow.
 	 *
 	 * @param p
-	 *            a {@link org.eclipse.jgit.internal.storage.file.PackFile}.
+	 *            a {@link org.eclipse.jgit.internal.storage.file.Pack}.
 	 * @param s
 	 *            where the byte window starts in the pack file
 	 * @param n
 	 *            size of the byte window
 	 */
-	protected ByteWindow(PackFile p, long s, int n) {
+	protected ByteWindow(Pack p, long s, int n) {
 		pack = p;
 		start = s;
 		end = start + n;
@@ -53,8 +53,8 @@
 		return (int) (end - start);
 	}
 
-	final boolean contains(PackFile neededFile, long neededPos) {
-		return pack == neededFile && start <= neededPos && neededPos < end;
+	final boolean contains(Pack neededPack, long neededPos) {
+		return pack == neededPack && start <= neededPos && neededPos < end;
 	}
 
 	/**
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/CachedObjectDirectory.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/CachedObjectDirectory.java
index 9c7a2e7..7dedeb5 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/CachedObjectDirectory.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/CachedObjectDirectory.java
@@ -239,7 +239,7 @@
 	}
 
 	@Override
-	PackFile openPack(File pack) throws IOException {
+	Pack openPack(File pack) throws IOException {
 		return wrapped.openPack(pack);
 	}
 
@@ -250,7 +250,7 @@
 	}
 
 	@Override
-	Collection<PackFile> getPacks() {
+	Collection<Pack> getPacks() {
 		return wrapped.getPacks();
 	}
 
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/DeltaBaseCache.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/DeltaBaseCache.java
index cef5a33..69cebad 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/DeltaBaseCache.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/DeltaBaseCache.java
@@ -49,7 +49,7 @@
 		cache = new Slot[CACHE_SZ];
 	}
 
-	Entry get(PackFile pack, long position) {
+	Entry get(Pack pack, long position) {
 		Slot e = cache[hash(position)];
 		if (e == null)
 			return null;
@@ -63,7 +63,7 @@
 		return null;
 	}
 
-	void store(final PackFile pack, final long position,
+	void store(final Pack pack, final long position,
 			final byte[] data, final int objectType) {
 		if (data.length > maxByteCount)
 			return; // Too large to cache.
@@ -146,7 +146,7 @@
 
 		Slot lruNext;
 
-		PackFile provider;
+		Pack provider;
 
 		long position;
 
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/FileObjectDatabase.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/FileObjectDatabase.java
index 11ed10c..01dd27d 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/FileObjectDatabase.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/FileObjectDatabase.java
@@ -71,7 +71,7 @@
 	abstract InsertLooseObjectResult insertUnpackedObject(File tmp,
 			ObjectId id, boolean createDuplicate) throws IOException;
 
-	abstract PackFile openPack(File pack) throws IOException;
+	abstract Pack openPack(File pack) throws IOException;
 
-	abstract Collection<PackFile> getPacks();
+	abstract Collection<Pack> getPacks();
 }
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/GC.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/GC.java
index 3240752..75de3be 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/GC.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/GC.java
@@ -205,16 +205,16 @@
 	 * gc.log.
 	 *
 	 * @return the collection of
-	 *         {@link org.eclipse.jgit.internal.storage.file.PackFile}'s which
+	 *         {@link org.eclipse.jgit.internal.storage.file.Pack}'s which
 	 *         are newly created
 	 * @throws java.io.IOException
 	 * @throws java.text.ParseException
 	 *             If the configuration parameter "gc.pruneexpire" couldn't be
 	 *             parsed
 	 */
-	// TODO(ms): change signature and return Future<Collection<PackFile>>
+	// TODO(ms): change signature and return Future<Collection<Pack>>
 	@SuppressWarnings("FutureReturnValueIgnored")
-	public Collection<PackFile> gc() throws IOException, ParseException {
+	public Collection<Pack> gc() throws IOException, ParseException {
 		if (!background) {
 			return doGc();
 		}
@@ -224,9 +224,9 @@
 			return Collections.emptyList();
 		}
 
-		Callable<Collection<PackFile>> gcTask = () -> {
+		Callable<Collection<Pack>> gcTask = () -> {
 			try {
-				Collection<PackFile> newPacks = doGc();
+				Collection<Pack> newPacks = doGc();
 				if (automatic && tooManyLooseObjects()) {
 					String message = JGitText.get().gcTooManyUnpruned;
 					gcLog.write(message);
@@ -258,14 +258,14 @@
 		return (executor != null) ? executor : WorkQueue.getExecutor();
 	}
 
-	private Collection<PackFile> doGc() throws IOException, ParseException {
+	private Collection<Pack> doGc() throws IOException, ParseException {
 		if (automatic && !needGc()) {
 			return Collections.emptyList();
 		}
 		pm.start(6 /* tasks */);
 		packRefs();
 		// TODO: implement reflog_expire(pm, repo);
-		Collection<PackFile> newPacks = repack();
+		Collection<Pack> newPacks = repack();
 		prune(Collections.emptySet());
 		// TODO: implement rerere_gc(pm);
 		return newPacks;
@@ -281,7 +281,7 @@
 	 * @param existing
 	 * @throws IOException
 	 */
-	private void loosen(ObjectDirectoryInserter inserter, ObjectReader reader, PackFile pack, HashSet<ObjectId> existing)
+	private void loosen(ObjectDirectoryInserter inserter, ObjectReader reader, Pack pack, HashSet<ObjectId> existing)
 			throws IOException {
 		for (PackIndex.MutableEntry entry : pack) {
 			ObjectId oid = entry.toObjectId();
@@ -313,10 +313,10 @@
 	 * @throws ParseException
 	 * @throws IOException
 	 */
-	private void deleteOldPacks(Collection<PackFile> oldPacks,
-			Collection<PackFile> newPacks) throws ParseException, IOException {
+	private void deleteOldPacks(Collection<Pack> oldPacks,
+			Collection<Pack> newPacks) throws ParseException, IOException {
 		HashSet<ObjectId> ids = new HashSet<>();
-		for (PackFile pack : newPacks) {
+		for (Pack pack : newPacks) {
 			for (PackIndex.MutableEntry entry : pack) {
 				ids.add(entry.toObjectId());
 			}
@@ -329,12 +329,12 @@
 
 		prunePreserved();
 		long packExpireDate = getPackExpireDate();
-		oldPackLoop: for (PackFile oldPack : oldPacks) {
+		oldPackLoop: for (Pack oldPack : oldPacks) {
 			checkCancelled();
 			String oldName = oldPack.getPackName();
 			// check whether an old pack file is also among the list of new
 			// pack files. Then we must not delete it.
-			for (PackFile newPack : newPacks)
+			for (Pack newPack : newPacks)
 				if (oldName.equals(newPack.getPackName()))
 					continue oldPackLoop;
 
@@ -438,7 +438,7 @@
 	 */
 	public void prunePacked() throws IOException {
 		ObjectDirectory objdb = repo.getObjectDatabase();
-		Collection<PackFile> packs = objdb.getPacks();
+		Collection<Pack> packs = objdb.getPacks();
 		File objects = repo.getObjectsDirectory();
 		String[] fanout = objects.list();
 
@@ -466,7 +466,7 @@
 							continue;
 						}
 						boolean found = false;
-						for (PackFile p : packs) {
+						for (Pack p : packs) {
 							checkCancelled();
 							if (p.hasObject(id)) {
 								found = true;
@@ -788,8 +788,8 @@
 	 *             reflog-entries or during writing to the packfiles
 	 *             {@link java.io.IOException} occurs
 	 */
-	public Collection<PackFile> repack() throws IOException {
-		Collection<PackFile> toBeDeleted = repo.getObjectDatabase().getPacks();
+	public Collection<Pack> repack() throws IOException {
+		Collection<Pack> toBeDeleted = repo.getObjectDatabase().getPacks();
 
 		long time = System.currentTimeMillis();
 		Collection<Ref> refsBefore = getAllRefs();
@@ -821,10 +821,10 @@
 		}
 
 		List<ObjectIdSet> excluded = new LinkedList<>();
-		for (PackFile f : repo.getObjectDatabase().getPacks()) {
+		for (Pack p : repo.getObjectDatabase().getPacks()) {
 			checkCancelled();
-			if (f.shouldBeKept())
-				excluded.add(f.getIndex());
+			if (p.shouldBeKept())
+				excluded.add(p.getIndex());
 		}
 
 		// Don't exclude tags that are also branch tips
@@ -842,8 +842,8 @@
 			nonHeads.clear();
 		}
 
-		List<PackFile> ret = new ArrayList<>(2);
-		PackFile heads = null;
+		List<Pack> ret = new ArrayList<>(2);
+		Pack heads = null;
 		if (!allHeadsAndTags.isEmpty()) {
 			heads = writePack(allHeadsAndTags, PackWriter.NONE, allTags,
 					tagTargets, excluded);
@@ -853,13 +853,13 @@
 			}
 		}
 		if (!nonHeads.isEmpty()) {
-			PackFile rest = writePack(nonHeads, allHeadsAndTags, PackWriter.NONE,
+			Pack rest = writePack(nonHeads, allHeadsAndTags, PackWriter.NONE,
 					tagTargets, excluded);
 			if (rest != null)
 				ret.add(rest);
 		}
 		if (!txnHeads.isEmpty()) {
-			PackFile txn = writePack(txnHeads, PackWriter.NONE, PackWriter.NONE,
+			Pack txn = writePack(txnHeads, PackWriter.NONE, PackWriter.NONE,
 					null, excluded);
 			if (txn != null)
 				ret.add(txn);
@@ -1129,7 +1129,7 @@
 		}
 	}
 
-	private PackFile writePack(@NonNull Set<? extends ObjectId> want,
+	private Pack writePack(@NonNull Set<? extends ObjectId> want,
 			@NonNull Set<? extends ObjectId> have, @NonNull Set<ObjectId> tags,
 			Set<ObjectId> tagTargets, List<ObjectIdSet> excludeObjects)
 			throws IOException {
@@ -1356,13 +1356,13 @@
 	 */
 	public RepoStatistics getStatistics() throws IOException {
 		RepoStatistics ret = new RepoStatistics();
-		Collection<PackFile> packs = repo.getObjectDatabase().getPacks();
-		for (PackFile f : packs) {
-			ret.numberOfPackedObjects += f.getIndex().getObjectCount();
+		Collection<Pack> packs = repo.getObjectDatabase().getPacks();
+		for (Pack p : packs) {
+			ret.numberOfPackedObjects += p.getIndex().getObjectCount();
 			ret.numberOfPackFiles++;
-			ret.sizeOfPackedObjects += f.getPackFile().length();
-			if (f.getBitmapIndex() != null)
-				ret.numberOfBitmaps += f.getBitmapIndex().getBitmapCount();
+			ret.sizeOfPackedObjects += p.getPackFile().length();
+			if (p.getBitmapIndex() != null)
+				ret.numberOfBitmaps += p.getBitmapIndex().getBitmapCount();
 		}
 		File objDir = repo.getObjectsDirectory();
 		String[] fanout = objDir.list();
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/LargePackedWholeObject.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/LargePackedWholeObject.java
index ee4bbc1..e2fbd7a 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/LargePackedWholeObject.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/LargePackedWholeObject.java
@@ -30,12 +30,12 @@
 
 	private final int headerLength;
 
-	private final PackFile pack;
+	private final Pack pack;
 
 	private final FileObjectDatabase db;
 
 	LargePackedWholeObject(int type, long size, long objectOffset,
-			int headerLength, PackFile pack, FileObjectDatabase db) {
+			int headerLength, Pack pack, FileObjectDatabase db) {
 		this.type = type;
 		this.size = size;
 		this.objectOffset = objectOffset;
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/LocalCachedPack.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/LocalCachedPack.java
index 9d04062..ae5bce6 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/LocalCachedPack.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/LocalCachedPack.java
@@ -25,31 +25,31 @@
 
 	private final String[] packNames;
 
-	private PackFile[] packs;
+	private Pack[] packs;
 
 	LocalCachedPack(ObjectDirectory odb, List<String> packNames) {
 		this.odb = odb;
 		this.packNames = packNames.toArray(new String[0]);
 	}
 
-	LocalCachedPack(List<PackFile> packs) {
+	LocalCachedPack(List<Pack> packs) {
 		odb = null;
 		packNames = null;
-		this.packs = packs.toArray(new PackFile[0]);
+		this.packs = packs.toArray(new Pack[0]);
 	}
 
 	/** {@inheritDoc} */
 	@Override
 	public long getObjectCount() throws IOException {
 		long cnt = 0;
-		for (PackFile pack : getPacks())
+		for (Pack pack : getPacks())
 			cnt += pack.getObjectCount();
 		return cnt;
 	}
 
 	void copyAsIs(PackOutputStream out, WindowCursor wc)
 			throws IOException {
-		for (PackFile pack : getPacks())
+		for (Pack pack : getPacks())
 			pack.copyPackAsIs(out, wc);
 	}
 
@@ -58,7 +58,7 @@
 	public boolean hasObject(ObjectToPack obj, StoredObjectRepresentation rep) {
 		try {
 			LocalObjectRepresentation local = (LocalObjectRepresentation) rep;
-			for (PackFile pack : getPacks()) {
+			for (Pack pack : getPacks()) {
 				if (local.pack == pack)
 					return true;
 			}
@@ -68,9 +68,9 @@
 		}
 	}
 
-	private PackFile[] getPacks() throws FileNotFoundException {
+	private Pack[] getPacks() throws FileNotFoundException {
 		if (packs == null) {
-			PackFile[] p = new PackFile[packNames.length];
+			Pack[] p = new Pack[packNames.length];
 			for (int i = 0; i < packNames.length; i++)
 				p[i] = getPackFile(packNames[i]);
 			packs = p;
@@ -78,8 +78,8 @@
 		return packs;
 	}
 
-	private PackFile getPackFile(String packName) throws FileNotFoundException {
-		for (PackFile pack : odb.getPacks()) {
+	private Pack getPackFile(String packName) throws FileNotFoundException {
+		for (Pack pack : odb.getPacks()) {
 			if (packName.equals(pack.getPackName()))
 				return pack;
 		}
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/LocalObjectRepresentation.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/LocalObjectRepresentation.java
index 3950dde..559718a 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/LocalObjectRepresentation.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/LocalObjectRepresentation.java
@@ -16,40 +16,40 @@
 import org.eclipse.jgit.lib.ObjectId;
 
 class LocalObjectRepresentation extends StoredObjectRepresentation {
-	static LocalObjectRepresentation newWhole(PackFile f, long p, long length) {
+	static LocalObjectRepresentation newWhole(Pack pack, long offset, long length) {
 		LocalObjectRepresentation r = new LocalObjectRepresentation() {
 			@Override
 			public int getFormat() {
 				return PACK_WHOLE;
 			}
 		};
-		r.pack = f;
-		r.offset = p;
+		r.pack = pack;
+		r.offset = offset;
 		r.length = length;
 		return r;
 	}
 
-	static LocalObjectRepresentation newDelta(PackFile f, long p, long n,
+	static LocalObjectRepresentation newDelta(Pack pack, long offset, long length,
 			ObjectId base) {
 		LocalObjectRepresentation r = new Delta();
-		r.pack = f;
-		r.offset = p;
-		r.length = n;
+		r.pack = pack;
+		r.offset = offset;
+		r.length = length;
 		r.baseId = base;
 		return r;
 	}
 
-	static LocalObjectRepresentation newDelta(PackFile f, long p, long n,
+	static LocalObjectRepresentation newDelta(Pack pack, long offset, long length,
 			long base) {
 		LocalObjectRepresentation r = new Delta();
-		r.pack = f;
-		r.offset = p;
-		r.length = n;
+		r.pack = pack;
+		r.offset = offset;
+		r.length = length;
 		r.baseOffset = base;
 		return r;
 	}
 
-	PackFile pack;
+	Pack pack;
 
 	long offset;
 
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/LocalObjectToPack.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/LocalObjectToPack.java
index 4a0ac1f..ac6cd21 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/LocalObjectToPack.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/LocalObjectToPack.java
@@ -17,7 +17,7 @@
 /** {@link ObjectToPack} for {@link ObjectDirectory}. */
 class LocalObjectToPack extends ObjectToPack {
 	/** Pack to reuse compressed data from, otherwise null. */
-	PackFile pack;
+	Pack pack;
 
 	/** Offset of the object's header in {@link #pack}. */
 	long offset;
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectory.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectory.java
index 4a40db6..e71a960 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectory.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectory.java
@@ -51,7 +51,7 @@
  * This is the classical object database representation for a Git repository,
  * where objects are stored loose by hashing them into directories by their
  * {@link org.eclipse.jgit.lib.ObjectId}, or are stored in compressed containers
- * known as {@link org.eclipse.jgit.internal.storage.file.PackFile}s.
+ * known as {@link org.eclipse.jgit.internal.storage.file.Pack}s.
  * <p>
  * Optionally an object database can reference one or more alternates; other
  * ObjectDatabase instances that are searched in addition to the current
@@ -206,7 +206,7 @@
 
 	/** {@inheritDoc} */
 	@Override
-	public Collection<PackFile> getPacks() {
+	public Collection<Pack> getPacks() {
 		return packed.getPacks();
 	}
 
@@ -216,7 +216,7 @@
 	 * Add a single existing pack to the list of available pack files.
 	 */
 	@Override
-	public PackFile openPack(File pack)
+	public Pack openPack(File pack)
 			throws IOException {
 		final String p = pack.getName();
 		if (p.length() != 50 || !p.startsWith("pack-") || !p.endsWith(".pack")) //$NON-NLS-1$ //$NON-NLS-2$
@@ -235,7 +235,7 @@
 			}
 		}
 
-		PackFile res = new PackFile(pack, extensions);
+		Pack res = new Pack(pack, extensions);
 		packed.insert(res);
 		return res;
 	}
@@ -509,7 +509,7 @@
 		// PackConfig) then make sure we get rid of all handles on the file.
 		// Windows will not allow for rename otherwise.
 		if (packFile.exists()) {
-			for (PackFile p : packed.getPacks()) {
+			for (Pack p : packed.getPacks()) {
 				if (packFile.getPath().equals(p.getPackFile().getPath())) {
 					p.close();
 					break;
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectoryPackParser.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectoryPackParser.java
index e275186..04d2ff8 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectoryPackParser.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/ObjectDirectoryPackParser.java
@@ -88,7 +88,7 @@
 	private Deflater def;
 
 	/** The pack that was created, if parsing was successful. */
-	private PackFile newPack;
+	private Pack newPack;
 
 	private PackConfig pconfig;
 
@@ -129,14 +129,14 @@
 	}
 
 	/**
-	 * Get the imported {@link org.eclipse.jgit.internal.storage.file.PackFile}.
+	 * Get the imported {@link org.eclipse.jgit.internal.storage.file.Pack}.
 	 * <p>
 	 * This method is supplied only to support testing; applications shouldn't
 	 * be using it directly to access the imported data.
 	 *
 	 * @return the imported PackFile, if parsing was successful.
 	 */
-	public PackFile getPackFile() {
+	public Pack getPack() {
 		return newPack;
 	}
 
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackFile.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/Pack.java
similarity index 98%
rename from org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackFile.java
rename to org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/Pack.java
index e112fe7..d928633 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackFile.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/Pack.java
@@ -69,13 +69,13 @@
  * delta packed format yielding high compression of lots of object where some
  * objects are similar.
  */
-public class PackFile implements Iterable<PackIndex.MutableEntry> {
-	private static final Logger LOG = LoggerFactory.getLogger(PackFile.class);
+public class Pack implements Iterable<PackIndex.MutableEntry> {
+	private static final Logger LOG = LoggerFactory.getLogger(Pack.class);
 
 	/**
 	 * Sorts PackFiles to be most recently created to least recently created.
 	 */
-	public static final Comparator<PackFile> SORT = (a, b) -> b.packLastModified
+	public static final Comparator<Pack> SORT = (a, b) -> b.packLastModified
 			.compareTo(a.packLastModified);
 
 	private final File packFile;
@@ -136,7 +136,7 @@
 	 * @param extensions
 	 *            additional pack file extensions with the same base as the pack
 	 */
-	public PackFile(File packFile, int extensions) {
+	public Pack(File packFile, int extensions) {
 		this.packFile = packFile;
 		this.fileSnapshot = PackFileSnapshot.save(packFile);
 		this.packLastModified = fileSnapshot.lastModifiedInstant();
@@ -1201,7 +1201,7 @@
 	@SuppressWarnings("nls")
 	@Override
 	public String toString() {
-		return "PackFile [packFileName=" + packFile.getName() + ", length="
+		return "Pack [packFileName=" + packFile.getName() + ", length="
 				+ packFile.length() + ", packChecksum="
 				+ ObjectId.fromRaw(packChecksum).name() + "]";
 	}
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackDirectory.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackDirectory.java
index fd9da7c..b2ba36b 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackDirectory.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackDirectory.java
@@ -47,16 +47,17 @@
 /**
  * Traditional file system packed objects directory handler.
  * <p>
- * This is the {@code PackFile}s object representation for a Git object
- * database, where objects are stored in compressed containers known as
- * {@link org.eclipse.jgit.internal.storage.file.PackFile}s.
+ * This is the {@link org.eclipse.jgit.internal.storage.file.Pack}s object
+ * representation for a Git object database, where objects are stored in
+ * compressed containers known as
+ * {@link org.eclipse.jgit.internal.storage.file.Pack}s.
  */
 class PackDirectory {
 	private final static Logger LOG = LoggerFactory
 			.getLogger(PackDirectory.class);
 
 	private static final PackList NO_PACKS = new PackList(FileSnapshot.DIRTY,
-			new PackFile[0]);
+			new Pack[0]);
 
 	private final Config config;
 
@@ -94,18 +95,18 @@
 	void close() {
 		PackList packs = packList.get();
 		if (packs != NO_PACKS && packList.compareAndSet(packs, NO_PACKS)) {
-			for (PackFile p : packs.packs) {
+			for (Pack p : packs.packs) {
 				p.close();
 			}
 		}
 	}
 
-	Collection<PackFile> getPacks() {
+	Collection<Pack> getPacks() {
 		PackList list = packList.get();
 		if (list == NO_PACKS) {
 			list = scanPacks(list);
 		}
-		PackFile[] packs = list.packs;
+		Pack[] packs = list.packs;
 		return Collections.unmodifiableCollection(Arrays.asList(packs));
 	}
 
@@ -126,7 +127,7 @@
 		PackList pList;
 		do {
 			pList = packList.get();
-			for (PackFile p : pList.packs) {
+			for (Pack p : pList.packs) {
 				try {
 					if (p.hasObject(objectId)) {
 						return true;
@@ -167,7 +168,7 @@
 		PackList pList;
 		do {
 			pList = packList.get();
-			for (PackFile p : pList.packs) {
+			for (Pack p : pList.packs) {
 				try {
 					p.resolve(matches, id, matchLimit);
 					p.resetTransientErrorCount();
@@ -187,7 +188,7 @@
 		do {
 			SEARCH: for (;;) {
 				pList = packList.get();
-				for (PackFile p : pList.packs) {
+				for (Pack p : pList.packs) {
 					try {
 						ObjectLoader ldr = p.get(curs, objectId);
 						p.resetTransientErrorCount();
@@ -213,7 +214,7 @@
 		do {
 			SEARCH: for (;;) {
 				pList = packList.get();
-				for (PackFile p : pList.packs) {
+				for (Pack p : pList.packs) {
 					try {
 						long len = p.getObjectSize(curs, id);
 						p.resetTransientErrorCount();
@@ -239,7 +240,7 @@
 			WindowCursor curs) {
 		PackList pList = packList.get();
 		SEARCH: for (;;) {
-			for (PackFile p : pList.packs) {
+			for (Pack p : pList.packs) {
 				try {
 					LocalObjectRepresentation rep = p.representation(curs, otp);
 					p.resetTransientErrorCount();
@@ -259,7 +260,7 @@
 		}
 	}
 
-	private void handlePackError(IOException e, PackFile p) {
+	private void handlePackError(IOException e, Pack p) {
 		String warnTmpl = null;
 		int transientErrorCount = 0;
 		String errTmpl = JGitText.get().exceptionWhileReadingPack;
@@ -322,7 +323,7 @@
 				&& old != scanPacks(old);
 	}
 
-	void insert(PackFile pf) {
+	void insert(Pack pack) {
 		PackList o, n;
 		do {
 			o = packList.get();
@@ -331,33 +332,33 @@
 			// (picked up by a concurrent thread that did a scan?) we
 			// do not want to insert it a second time.
 			//
-			final PackFile[] oldList = o.packs;
-			final String name = pf.getPackFile().getName();
-			for (PackFile p : oldList) {
+			final Pack[] oldList = o.packs;
+			final String name = pack.getPackFile().getName();
+			for (Pack p : oldList) {
 				if (name.equals(p.getPackFile().getName())) {
 					return;
 				}
 			}
 
-			final PackFile[] newList = new PackFile[1 + oldList.length];
-			newList[0] = pf;
+			final Pack[] newList = new Pack[1 + oldList.length];
+			newList[0] = pack;
 			System.arraycopy(oldList, 0, newList, 1, oldList.length);
 			n = new PackList(o.snapshot, newList);
 		} while (!packList.compareAndSet(o, n));
 	}
 
-	private void remove(PackFile deadPack) {
+	private void remove(Pack deadPack) {
 		PackList o, n;
 		do {
 			o = packList.get();
 
-			final PackFile[] oldList = o.packs;
+			final Pack[] oldList = o.packs;
 			final int j = indexOf(oldList, deadPack);
 			if (j < 0) {
 				break;
 			}
 
-			final PackFile[] newList = new PackFile[oldList.length - 1];
+			final Pack[] newList = new Pack[oldList.length - 1];
 			System.arraycopy(oldList, 0, newList, 0, j);
 			System.arraycopy(oldList, j + 1, newList, j, newList.length - j);
 			n = new PackList(o.snapshot, newList);
@@ -365,7 +366,7 @@
 		deadPack.close();
 	}
 
-	private static int indexOf(PackFile[] list, PackFile pack) {
+	private static int indexOf(Pack[] list, Pack pack) {
 		for (int i = 0; i < list.length; i++) {
 			if (list[i] == pack) {
 				return i;
@@ -395,10 +396,10 @@
 	}
 
 	private PackList scanPacksImpl(PackList old) {
-		final Map<String, PackFile> forReuse = reuseMap(old);
+		final Map<String, Pack> forReuse = reuseMap(old);
 		final FileSnapshot snapshot = FileSnapshot.save(directory);
 		final Set<String> names = listPackDirectory();
-		final List<PackFile> list = new ArrayList<>(names.size() >> 2);
+		final List<Pack> list = new ArrayList<>(names.size() >> 2);
 		boolean foundNew = false;
 		for (String indexName : names) {
 			// Must match "pack-[0-9a-f]{40}.idx" to be an index.
@@ -425,7 +426,7 @@
 
 			final String packName = base + PACK.getExtension();
 			final File packFile = new File(directory, packName);
-			final PackFile oldPack = forReuse.get(packName);
+			final Pack oldPack = forReuse.get(packName);
 			if (oldPack != null
 					&& !oldPack.getFileSnapshot().isModified(packFile)) {
 				forReuse.remove(packName);
@@ -433,7 +434,7 @@
 				continue;
 			}
 
-			list.add(new PackFile(packFile, extensions));
+			list.add(new Pack(packFile, extensions));
 			foundNew = true;
 		}
 
@@ -447,7 +448,7 @@
 			return old;
 		}
 
-		for (PackFile p : forReuse.values()) {
+		for (Pack p : forReuse.values()) {
 			p.close();
 		}
 
@@ -455,14 +456,14 @@
 			return new PackList(snapshot, NO_PACKS.packs);
 		}
 
-		final PackFile[] r = list.toArray(new PackFile[0]);
-		Arrays.sort(r, PackFile.SORT);
+		final Pack[] r = list.toArray(new Pack[0]);
+		Arrays.sort(r, Pack.SORT);
 		return new PackList(snapshot, r);
 	}
 
-	private static Map<String, PackFile> reuseMap(PackList old) {
-		final Map<String, PackFile> forReuse = new HashMap<>();
-		for (PackFile p : old.packs) {
+	private static Map<String, Pack> reuseMap(PackList old) {
+		final Map<String, Pack> forReuse = new HashMap<>();
+		for (Pack p : old.packs) {
 			if (p.invalid()) {
 				// The pack instance is corrupted, and cannot be safely used
 				// again. Do not include it in our reuse map.
@@ -471,7 +472,7 @@
 				continue;
 			}
 
-			final PackFile prior = forReuse.put(p.getPackFile().getName(), p);
+			final Pack prior = forReuse.put(p.getPackFile().getName(), p);
 			if (prior != null) {
 				// This should never occur. It should be impossible for us
 				// to have two pack files with the same name, as all of them
@@ -504,10 +505,10 @@
 		/** State just before reading the pack directory. */
 		final FileSnapshot snapshot;
 
-		/** All known packs, sorted by {@link PackFile#SORT}. */
-		final PackFile[] packs;
+		/** All known packs, sorted by {@link Pack#SORT}. */
+		final Pack[] packs;
 
-		PackList(FileSnapshot monitor, PackFile[] packs) {
+		PackList(FileSnapshot monitor, Pack[] packs) {
 			this.snapshot = monitor;
 			this.packs = packs;
 		}
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackIndex.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackIndex.java
index 31686be..942cc96 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackIndex.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackIndex.java
@@ -34,7 +34,7 @@
 
 /**
  * Access path to locate objects by {@link org.eclipse.jgit.lib.ObjectId} in a
- * {@link org.eclipse.jgit.internal.storage.file.PackFile}.
+ * {@link org.eclipse.jgit.internal.storage.file.Pack}.
  * <p>
  * Indexes are strictly redundant information in that we can rebuild all of the
  * data held in the index file from the on disk representation of the pack file
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackIndexWriter.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackIndexWriter.java
index 612b123..87e0b44 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackIndexWriter.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackIndexWriter.java
@@ -25,7 +25,7 @@
 
 /**
  * Creates a table of contents to support random access by
- * {@link org.eclipse.jgit.internal.storage.file.PackFile}.
+ * {@link org.eclipse.jgit.internal.storage.file.Pack}.
  * <p>
  * Pack index files (the <code>.idx</code> suffix in a pack file pair) provides
  * random access to any object in the pack by associating an ObjectId to the
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackInputStream.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackInputStream.java
index a9e0588..0bceca7 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackInputStream.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackInputStream.java
@@ -16,11 +16,11 @@
 class PackInputStream extends InputStream {
 	private final WindowCursor wc;
 
-	private final PackFile pack;
+	private final Pack pack;
 
 	private long pos;
 
-	PackInputStream(PackFile pack, long pos, WindowCursor wc)
+	PackInputStream(Pack pack, long pos, WindowCursor wc)
 			throws IOException {
 		this.pack = pack;
 		this.pos = pos;
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackLock.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackLock.java
index 2c2f791..482b143 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackLock.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackLock.java
@@ -18,7 +18,7 @@
 import org.eclipse.jgit.util.FileUtils;
 
 /**
- * Keeps track of a {@link org.eclipse.jgit.internal.storage.file.PackFile}'s
+ * Keeps track of a {@link org.eclipse.jgit.internal.storage.file.Pack}'s
  * associated <code>.keep</code> file.
  */
 public class PackLock {
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackReverseIndex.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackReverseIndex.java
index 4d80a03..ee458e2 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackReverseIndex.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackReverseIndex.java
@@ -25,7 +25,7 @@
  * </p>
  *
  * @see PackIndex
- * @see PackFile
+ * @see Pack
  */
 public class PackReverseIndex {
 	/** Index we were created from, and that has our ObjectId data. */
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/WindowCache.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/WindowCache.java
index 3e8cb3a..25653b3 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/WindowCache.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/WindowCache.java
@@ -33,7 +33,7 @@
 import org.eclipse.jgit.util.Monitoring;
 
 /**
- * Caches slices of a {@link org.eclipse.jgit.internal.storage.file.PackFile} in
+ * Caches slices of a {@link org.eclipse.jgit.internal.storage.file.Pack} in
  * memory for faster read access.
  * <p>
  * The WindowCache serves as a Java based "buffer cache", loading segments of a
@@ -41,7 +41,7 @@
  * only tiny slices of a file, the WindowCache tries to smooth out these tiny
  * reads into larger block-sized IO operations.
  * <p>
- * Whenever a cache miss occurs, {@link #load(PackFile, long)} is invoked by
+ * Whenever a cache miss occurs, {@link #load(Pack, long)} is invoked by
  * exactly one thread for the given <code>(PackFile,position)</code> key tuple.
  * This is ensured by an array of locks, with the tuple hashed to a lock
  * instance.
@@ -80,10 +80,10 @@
  * <p>
  * This cache has an implementation rule such that:
  * <ul>
- * <li>{@link #load(PackFile, long)} is invoked by at most one thread at a time
+ * <li>{@link #load(Pack, long)} is invoked by at most one thread at a time
  * for a given <code>(PackFile,position)</code> tuple.</li>
  * <li>For every <code>load()</code> invocation there is exactly one
- * {@link #createRef(PackFile, long, ByteWindow)} invocation to wrap a
+ * {@link #createRef(Pack, long, ByteWindow)} invocation to wrap a
  * SoftReference or a StrongReference around the cached entity.</li>
  * <li>For every Reference created by <code>createRef()</code> there will be
  * exactly one call to {@link #clear(PageRef)} to cleanup any resources associated
@@ -91,10 +91,10 @@
  * </ul>
  * <p>
  * Therefore, it is safe to perform resource accounting increments during the
- * {@link #load(PackFile, long)} or
- * {@link #createRef(PackFile, long, ByteWindow)} methods, and matching
+ * {@link #load(Pack, long)} or
+ * {@link #createRef(Pack, long, ByteWindow)} methods, and matching
  * decrements during {@link #clear(PageRef)}. Implementors may need to override
- * {@link #createRef(PackFile, long, ByteWindow)} in order to embed additional
+ * {@link #createRef(Pack, long, ByteWindow)} in order to embed additional
  * accounting information into an implementation specific
  * {@link org.eclipse.jgit.internal.storage.file.WindowCache.PageRef} subclass, as
  * the cached entity may have already been evicted by the JRE's garbage
@@ -170,7 +170,7 @@
 		 * @param delta
 		 *            delta of cached bytes
 		 */
-		void recordOpenBytes(PackFile pack, int delta);
+		void recordOpenBytes(Pack pack, int delta);
 
 		/**
 		 * Returns a snapshot of this recorder's stats. Note that this may be an
@@ -242,7 +242,7 @@
 		}
 
 		@Override
-		public void recordOpenBytes(PackFile pack, int delta) {
+		public void recordOpenBytes(Pack pack, int delta) {
 			openByteCount.add(delta);
 			String repositoryId = repositoryId(pack);
 			LongAdder la = openByteCountPerRepository
@@ -254,9 +254,8 @@
 			}
 		}
 
-		private static String repositoryId(PackFile pack) {
-			// use repository's gitdir since packfile doesn't know its
-			// repository
+		private static String repositoryId(Pack pack) {
+			// use repository's gitdir since Pack doesn't know its repository
 			return pack.getPackFile().getParentFile().getParentFile()
 					.getParent();
 		}
@@ -380,7 +379,7 @@
 		return cache.publishMBeanIfNeeded();
 	}
 
-	static final ByteWindow get(PackFile pack, long offset)
+	static final ByteWindow get(Pack pack, long offset)
 			throws IOException {
 		final WindowCache c = cache;
 		final ByteWindow r = c.getOrLoad(pack, c.toStart(offset));
@@ -395,7 +394,7 @@
 		return r;
 	}
 
-	static final void purge(PackFile pack) {
+	static final void purge(Pack pack) {
 		cache.removeAll(pack);
 	}
 
@@ -506,7 +505,7 @@
 		return packHash + (int) (off >>> windowSizeShift);
 	}
 
-	private ByteWindow load(PackFile pack, long offset) throws IOException {
+	private ByteWindow load(Pack pack, long offset) throws IOException {
 		long startTime = System.nanoTime();
 		if (pack.beginWindowCache())
 			statsRecorder.recordOpenFiles(1);
@@ -525,7 +524,7 @@
 		}
 	}
 
-	private PageRef<ByteWindow> createRef(PackFile p, long o, ByteWindow v) {
+	private PageRef<ByteWindow> createRef(Pack p, long o, ByteWindow v) {
 		final PageRef<ByteWindow> ref = useStrongRefs
 				? new StrongRef(p, o, v, queue)
 				: new SoftRef(p, o, v, (SoftCleanupQueue) queue);
@@ -539,7 +538,7 @@
 		close(ref.getPack());
 	}
 
-	private void close(PackFile pack) {
+	private void close(Pack pack) {
 		if (pack.endWindowCache()) {
 			statsRecorder.recordOpenFiles(-1);
 		}
@@ -578,9 +577,9 @@
 	 * @return the object reference.
 	 * @throws IOException
 	 *             the object reference was not in the cache and could not be
-	 *             obtained by {@link #load(PackFile, long)}.
+	 *             obtained by {@link #load(Pack, long)}.
 	 */
-	private ByteWindow getOrLoad(PackFile pack, long position)
+	private ByteWindow getOrLoad(Pack pack, long position)
 			throws IOException {
 		final int slot = slot(pack, position);
 		final Entry e1 = table.get(slot);
@@ -623,7 +622,7 @@
 		return v;
 	}
 
-	private ByteWindow scan(Entry n, PackFile pack, long position) {
+	private ByteWindow scan(Entry n, Pack pack, long position) {
 		for (; n != null; n = n.next) {
 			final PageRef<ByteWindow> r = n.ref;
 			if (r.getPack() == pack && r.getPosition() == position) {
@@ -704,7 +703,7 @@
 	/**
 	 * Clear all entries related to a single file.
 	 * <p>
-	 * Typically this method is invoked during {@link PackFile#close()}, when we
+	 * Typically this method is invoked during {@link Pack#close()}, when we
 	 * know the pack is never going to be useful to us again (for example, it no
 	 * longer exists on disk). A concurrent reader loading an entry from this
 	 * same pack may cause the pack to become stuck in the cache anyway.
@@ -712,7 +711,7 @@
 	 * @param pack
 	 *            the file to purge all entries of.
 	 */
-	private void removeAll(PackFile pack) {
+	private void removeAll(Pack pack) {
 		for (int s = 0; s < tableSize; s++) {
 			final Entry e1 = table.get(s);
 			boolean hasDead = false;
@@ -733,11 +732,11 @@
 		queue.gc();
 	}
 
-	private int slot(PackFile pack, long position) {
+	private int slot(Pack pack, long position) {
 		return (hash(pack.hash, position) >>> 1) % tableSize;
 	}
 
-	private Lock lock(PackFile pack, long position) {
+	private Lock lock(Pack pack, long position) {
 		return locks[(hash(pack.hash, position) >>> 1) % locks.length];
 	}
 
@@ -799,16 +798,20 @@
 		boolean kill();
 
 		/**
-		 * Get the packfile the referenced cache page is allocated for
+		 * Get the {@link org.eclipse.jgit.internal.storage.file.Pack} the
+		 * referenced cache page is allocated for
 		 *
-		 * @return the packfile the referenced cache page is allocated for
+		 * @return the {@link org.eclipse.jgit.internal.storage.file.Pack} the
+		 *         referenced cache page is allocated for
 		 */
-		PackFile getPack();
+		Pack getPack();
 
 		/**
-		 * Get the position of the referenced cache page in the packfile
+		 * Get the position of the referenced cache page in the
+		 * {@link org.eclipse.jgit.internal.storage.file.Pack}
 		 *
-		 * @return the position of the referenced cache page in the packfile
+		 * @return the position of the referenced cache page in the
+		 *         {@link org.eclipse.jgit.internal.storage.file.Pack}
 		 */
 		long getPosition();
 
@@ -844,7 +847,7 @@
 	/** A soft reference wrapped around a cached object. */
 	private static class SoftRef extends SoftReference<ByteWindow>
 			implements PageRef<ByteWindow> {
-		private final PackFile pack;
+		private final Pack pack;
 
 		private final long position;
 
@@ -852,7 +855,7 @@
 
 		private long lastAccess;
 
-		protected SoftRef(final PackFile pack, final long position,
+		protected SoftRef(final Pack pack, final long position,
 				final ByteWindow v, final SoftCleanupQueue queue) {
 			super(v, queue);
 			this.pack = pack;
@@ -861,7 +864,7 @@
 		}
 
 		@Override
-		public PackFile getPack() {
+		public Pack getPack() {
 			return pack;
 		}
 
@@ -900,7 +903,7 @@
 	private static class StrongRef implements PageRef<ByteWindow> {
 		private ByteWindow referent;
 
-		private final PackFile pack;
+		private final Pack pack;
 
 		private final long position;
 
@@ -910,7 +913,7 @@
 
 		private CleanupQueue queue;
 
-		protected StrongRef(final PackFile pack, final long position,
+		protected StrongRef(final Pack pack, final long position,
 				final ByteWindow v, final CleanupQueue queue) {
 			this.pack = pack;
 			this.position = position;
@@ -920,7 +923,7 @@
 		}
 
 		@Override
-		public PackFile getPack() {
+		public Pack getPack() {
 			return pack;
 		}
 
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/WindowCursor.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/WindowCursor.java
index 6c97570..e7fd7b9 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/WindowCursor.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/WindowCursor.java
@@ -86,7 +86,7 @@
 	/** {@inheritDoc} */
 	@Override
 	public BitmapIndex getBitmapIndex() throws IOException {
-		for (PackFile pack : db.getPacks()) {
+		for (Pack pack : db.getPacks()) {
 			PackBitmapIndex index = pack.getBitmapIndex();
 			if (index != null)
 				return new BitmapIndexImpl(index);
@@ -98,7 +98,7 @@
 	@Override
 	public Collection<CachedPack> getCachedPacksAndUpdate(
 			BitmapBuilder needBitmap) throws IOException {
-		for (PackFile pack : db.getPacks()) {
+		for (Pack pack : db.getPacks()) {
 			PackBitmapIndex index = pack.getBitmapIndex();
 			if (needBitmap.removeAllOrNone(index))
 				return Collections.<CachedPack> singletonList(
@@ -218,7 +218,7 @@
 	 *             this cursor does not match the provider or id and the proper
 	 *             window could not be acquired through the provider's cache.
 	 */
-	int copy(final PackFile pack, long position, final byte[] dstbuf,
+	int copy(final Pack pack, long position, final byte[] dstbuf,
 			int dstoff, final int cnt) throws IOException {
 		final long length = pack.length;
 		int need = cnt;
@@ -239,7 +239,7 @@
 		((LocalCachedPack) pack).copyAsIs(out, this);
 	}
 
-	void copyPackAsIs(final PackFile pack, final long length,
+	void copyPackAsIs(final Pack pack, final long length,
 			final PackOutputStream out) throws IOException {
 		long position = 12;
 		long remaining = length - (12 + 20);
@@ -275,7 +275,7 @@
 	 *             the inflater encountered an invalid chunk of data. Data
 	 *             stream corruption is likely.
 	 */
-	int inflate(final PackFile pack, long position, final byte[] dstbuf,
+	int inflate(final Pack pack, long position, final byte[] dstbuf,
 			boolean headerOnly) throws IOException, DataFormatException {
 		prepareInflater();
 		pin(pack, position);
@@ -293,7 +293,7 @@
 		}
 	}
 
-	ByteArrayWindow quickCopy(PackFile p, long pos, long cnt)
+	ByteArrayWindow quickCopy(Pack p, long pos, long cnt)
 			throws IOException {
 		pin(p, pos);
 		if (window instanceof ByteArrayWindow
@@ -314,7 +314,7 @@
 			inf.reset();
 	}
 
-	void pin(PackFile pack, long position)
+	void pin(Pack pack, long position)
 			throws IOException {
 		final ByteWindow w = window;
 		if (w == null || !w.contains(pack, position)) {