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我正在开发一个简单的项目来自动化 android 应用程序的夜间构建。我已经准备好所有配置（如 bash 脚本、gradle、android-sdk 等）来开始构建。问题是，当我在本地计算机上构建应用程序时，应用程序构建成功并且在手机上运行良好。但是当我在我公司的构建服务器上构建它时，它会在下面给出运行时错误，即使它构建成功；

01-08 05:46:46.688 14675 14721 E AndroidRuntime: FATAL EXCEPTION: AsyncTask #1
01-08 05:46:46.688 14675 14721 E AndroidRuntime: Process: com.vestel.camera, PID: 14675
01-08 05:46:46.688 14675 14721 E AndroidRuntime: java.lang.RuntimeException: An error occurred while executing doInBackground()
01-08 05:46:46.688 14675 14721 E AndroidRuntime:    at android.os.AsyncTask$3.done(AsyncTask.java:309)
01-08 05:46:46.688 14675 14721 E AndroidRuntime:    at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:354)
01-08 05:46:46.688 14675 14721 E AndroidRuntime:    at java.util.concurrent.FutureTask.setException(FutureTask.java:223)
01-08 05:46:46.688 14675 14721 E AndroidRuntime:    at java.util.concurrent.FutureTask.run(FutureTask.java:242)
01-08 05:46:46.688 14675 14721 E AndroidRuntime:    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
01-08 05:46:46.688 14675 14721 E AndroidRuntime:    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
01-08 05:46:46.688 14675 14721 E AndroidRuntime:    at java.lang.Thread.run(Thread.java:818)
01-08 05:46:46.688 14675 14721 E AndroidRuntime: Caused by: java.lang.ClassCastException: java.lang.Object[] cannot be cast to java.lang.Void[]
01-08 05:46:46.688 14675 14721 E AndroidRuntime:    at com.android.camera.CameraActivity$UpdateThumbnailTask.doInBackground(CameraActivity.java:826)
01-08 05:46:46.688 14675 14721 E AndroidRuntime:    at android.os.AsyncTask$2.call(AsyncTask.java:295)
01-08 05:46:46.688 14675 14721 E AndroidRuntime:    at java.util.concurrent.FutureTask.run(FutureTask.java:237)
01-08 05:46:46.688 14675 14721 E AndroidRuntime:    ... 3 more

这种错误的原因可能是什么？我在两台机器上都使用了 sdk 和 gradle 的确切副本，但是当我在服务器上构建它时，它给出了这个错误。顺便说一句，我也在第三台计算机上尝试了相同的过程，它也工作得很好。

这是UpdateThumbnailTask​​类的doInBackground方法；

private class UpdateThumbnailTask extends AsyncTask<Void, Void, Bitmap> {
        private final byte[] mJpegData;
        private final boolean mCheckOrientation;

        public UpdateThumbnailTask(final byte[] jpegData, boolean checkOrientation) {
            mJpegData = jpegData;
            mCheckOrientation = checkOrientation;
        }

        @Override
        protected Bitmap doInBackground(Void... params) {
            if (mJpegData != null)
                return decodeImageCenter(null);

            LocalDataAdapter adapter = getDataAdapter();
            ImageData img = adapter.getImageData(1);
            if (img == null) {
                return null;
            }
            Uri uri = img.getContentUri();
            String path = getPathFromUri(uri);
            if (path == null) {
                return null;
            }
            else {
                if (img.isPhoto()) {
                    return decodeImageCenter(path);
                } else {
                    return ThumbnailUtils
                            .createVideoThumbnail(path, MediaStore.Video.Thumbnails.MINI_KIND);
                }
            }
        }
    .
    .
    .

UpdateThumbnailTask​​ 的对象被创建了几次；

if(ImageStorage.getInstance().getImageList().size() == 0) {
            Log.w(TAG,"onActivityResult imagelist 0");
            Utils.execute(new UpdateThumbnailTask(null, true));
}

.

public void updateThumbnail(final byte[] jpegData) {
    Utils.execute(new UpdateThumbnailTask(jpegData, false));
}

.

public void updateThumbnail(boolean videoOnly) {
    // Only handle OnDataInserted if it's video.
    // Photo and Panorama have their own way of updating thumbnail.
    if (!videoOnly || (mCurrentModule instanceof VideoModule)) {
        Utils.execute(new UpdateThumbnailTask(null, true));
    }
}

提前致谢。

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