Fixed a bug where copyArchives didn't copy the file's data.

src/org/displee/cache/index/IndexInformation.java

@@ -307,6 +307,17 @@ public Archive[] copyArchives() {
 		return archives;
 	}
 
+	/**
+	 * Add multiple archives to this index.
+	 * @param archives An array of archives.
+	 * @param resetFiles If we need to reset all the files in the archives.
+	 */
+	public void addArchives(Archive[] archives, boolean resetFiles) {
+		for (Archive archive : archives) {
+			addArchive(archive, resetFiles);
+		}
+	}
+
 	/**
 	 * Add multiple archives to this index.
 	 * @param archives An array of archives.
@@ -585,6 +596,10 @@ public Archive getArchive(int id, int[] xtea, boolean direct) {
 					return archive;
 				}
 				archive.read(new InputStream(Compression.decompress(archiveInformation, xtea)));
+				if (this.id == 5 && !archive.containsData()) {//reset map data if archive has no data
+					archive.setIsRead(false);
+					return archive;
+				}
 				final InputStream inputStream = new InputStream(archiveInformation.getData());
 				inputStream.setOffset(1);
 				final int remaining = inputStream.getBytes().length - ((inputStream.readInt() & 0xFFFFFF) + inputStream.getOffset());

src/org/displee/cache/index/archive/Archive.java

@@ -146,6 +146,22 @@ public byte[] write(OutputStream outputStream) {
 		return outputStream.flip();
 	}
 
+	/**
+	 * Check if this archive contains data.
+	 * @return If this archive contains data.
+	 */
+	public boolean containsData() {
+		if (files == null) {
+			return false;
+		}
+		for(File file : files) {
+			if (file != null && file.getData() != null) {
+				return true;
+			}
+		}
+		return false;
+	}
+
 	/**
 	 * Add multiple files.
 	 * @param files The array of the files to add.
@@ -329,7 +345,10 @@ public void restore() {
 	public Archive copy() {
 		final Archive archive = new Archive(id, name);
 		archive.fileIds = Arrays.copyOf(fileIds, fileIds.length);
-		archive.files = Arrays.copyOf(files, files.length);
+		archive.files = new File[files.length];
+		for(int i = 0; i < files.length; i++) {
+			archive.files[i] = files[i].copy();
+		}
 		archive.revision = revision;
 		archive.crc = crc;
 		archive.whirlpool = Arrays.copyOf(whirlpool, whirlpool.length);

src/org/displee/cache/index/archive/file/File.java

@@ -57,7 +57,7 @@ public File(int id, byte[] data, int name) {
 	 * @return The new file.
 	 */
 	public File copy() {
-		return new File(id, data, name);
+		return new File(id, data.clone(), name);
 	}
 
 	/**