求帮助 android Volley的BUG

Question

今天程序莫名其妙崩溃
10-15 14:32:57.463: E/AndroidRuntime(16119): FATAL EXCEPTION: Thread-774
10-15 14:32:57.463: E/AndroidRuntime(16119): Process: com.cyber.testapp, PID: 16119
10-15 14:32:57.463: E/AndroidRuntime(16119): java.lang.NegativeArraySizeException: -374
10-15 14:32:57.463: E/AndroidRuntime(16119): at com.android.volley.toolbox.DiskBasedCache.streamToBytes(DiskBasedCache.java:317)
10-15 14:32:57.463: E/AndroidRuntime(16119): at com.android.volley.toolbox.DiskBasedCache.get(DiskBasedCache.java:118)
10-15 14:32:57.463: E/AndroidRuntime(16119): at com.android.volley.CacheDispatcher.run(CacheDispatcher.java:101)

上网查了说是Volley本身有问题 但是完全不知道该怎么处理
https://github.com/mcxiaoke/android-volley/commit/2f317deb8c9cfdf349a9a3b7a90207c2bf5649b7
这个网址根本看不懂是什么意思 是要修改Volley里面的代码么？ 但是网上根本找不到源码啊。。。

Answer 1

网上说的是修改volley包目录下com/android/volley/toolbox/DiskBasedCache.java文件，找到public synchronized Entry get(String key) 这个方法
在catch中再加上NegativeArraySizeException的捕获

 @Override
    public synchronized Entry get(String key) {
        CacheHeader entry = mEntries.get(key);
        // if the entry does not exist, return.
        if (entry == null) {
            return null;
        }

        File file = getFileForKey(key);
        CountingInputStream cis = null;
        try {
            cis = new CountingInputStream(new FileInputStream(file));
            CacheHeader.readHeader(cis); // eat header
            byte[] data = streamToBytes(cis, (int) (file.length() - cis.bytesRead));
            return entry.toCacheEntry(data);
        } catch (IOException e) {
            VolleyLog.d("%s: %s", file.getAbsolutePath(), e.toString());
            remove(key);
            return null;
        }  
                //就是加下面这段
                catch (NegativeArraySizeException e) {
           VolleyLog.d("%s: %s", file.getAbsolutePath(), e.toString());
            remove(key);
            return null;
        }
                finally {
            if (cis != null) {
                try {
                    cis.close();
                } catch (IOException ioe) {
                    return null;
                }
            }
        }
    }