diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/download/game/LibraryDownloadTask.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/download/game/LibraryDownloadTask.java
index cebb4823d..9c4c4d868 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/download/game/LibraryDownloadTask.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/download/game/LibraryDownloadTask.java
@@ -142,7 +142,7 @@ public final class LibraryDownloadTask extends Task {
         JarInputStream jar = new JarInputStream(new ByteArrayInputStream(data));
         JarEntry entry = jar.getNextJarEntry();
         while (entry != null) {
-            byte[] eData = IOUtils.readFullyAsByteArray(jar);
+            byte[] eData = IOUtils.readFullyWithoutClosing(jar);
             if (entry.getName().equals("checksums.sha1")) {
                 hashes = new String(eData, Charset.forName("UTF-8")).split("\n");
             }
diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/util/IOUtils.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/util/IOUtils.java
index ccc89e25a..999b8c53f 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/util/IOUtils.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/util/IOUtils.java
@@ -31,6 +31,12 @@ public final class IOUtils {
 
     public static final int DEFAULT_BUFFER_SIZE = 8 * 1024;
 
+    public static byte[] readFullyWithoutClosing(InputStream stream) throws IOException {
+        ByteArrayOutputStream result = new ByteArrayOutputStream();
+        copyTo(stream, result);
+        return result.toByteArray();
+    }
+
     public static ByteArrayOutputStream readFully(InputStream stream) throws IOException {
         try (InputStream is = stream) {
             ByteArrayOutputStream result = new ByteArrayOutputStream();