From 2b4e4761531c4ed099c8a827ccdff73ff832ab21 Mon Sep 17 00:00:00 2001
From: Glavo <zjx001202@gmail.com>
Date: Fri, 30 Dec 2022 17:21:57 +0800
Subject: [PATCH] fix crash on Java 8 (#1954)

---
 .../org/jackhuang/hmcl/upgrade/ExecutableHeaderHelper.java     | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/ExecutableHeaderHelper.java b/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/ExecutableHeaderHelper.java
index 66a0f0eed..7c47f586d 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/ExecutableHeaderHelper.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/upgrade/ExecutableHeaderHelper.java
@@ -19,6 +19,7 @@ package org.jackhuang.hmcl.upgrade;
 
 import java.io.IOException;
 import java.io.InputStream;
+import java.nio.Buffer;
 import java.nio.ByteBuffer;
 import java.nio.channels.FileChannel;
 import java.nio.channels.FileChannel.MapMode;
@@ -75,7 +76,7 @@ final class ExecutableHeaderHelper {
         suffixLoop: for (String suffix : suffix2header.keySet()) {
             Optional<byte[]> header = readHeader(zip, suffix);
             if (header.isPresent()) {
-                buf.rewind();
+                ((Buffer) buf).rewind();
                 for (byte b : header.get()) {
                     if (!buf.hasRemaining() || b != buf.get()) {
                         continue suffixLoop;