fix bug fix bug https://github.com/AriaLyy/Aria/issues/595

修复一个数据升级导致的taskType列不存在问题，https://github.com/AriaLyy/Aria/issues/586

HttpComponent/src/main/java/com/arialyy/aria/http/download/HttpDGInfoTask.java

@@ -89,6 +89,9 @@ public final class HttpDGInfoTask implements IInfoTask {
       } catch (InterruptedException e) {
         e.printStackTrace();
       }
+      if (!mPool.isShutdown()){
+        mPool.shutdown();
+      }
     } else {
       for (DTaskWrapper wrapper : wrapper.getSubTaskWrapper()) {
         cloneHeader(wrapper);

HttpComponent/src/main/java/com/arialyy/aria/http/download/HttpDGLoader.java

@@ -66,7 +66,7 @@ final class HttpDGLoader extends AbsGroupLoader {
       }
 
       @Override public void onFail(AbsEntity entity, BaseException e, boolean needRetry) {
-        getListener().onFail(needRetry, e);
+        fail(e, needRetry);
       }
     });
   }

HttpComponent/src/main/java/com/arialyy/aria/http/download/HttpDThreadTaskAdapter.java

@@ -24,7 +24,6 @@ import com.arialyy.aria.http.BaseHttpThreadTaskAdapter;
 import com.arialyy.aria.http.ConnectionHelp;
 import com.arialyy.aria.util.ALog;
 import com.arialyy.aria.util.BufferedRandomAccessFile;
-import com.arialyy.aria.util.FileUtil;
 import java.io.BufferedInputStream;
 import java.io.FileOutputStream;
 import java.io.IOException;
@@ -112,7 +111,7 @@ final class HttpDThreadTaskAdapter extends BaseHttpThreadTaskAdapter {
             new BufferedRandomAccessFile(getThreadConfig().tempFile, "rwd",
                 getTaskConfig().getBuffSize());
         //设置每条线程写入文件的位置
-        if (getThreadRecord().startLocation > 0){
+        if (getThreadRecord().startLocation > 0) {
           file.seek(getThreadRecord().startLocation);
         }
         readNormal(is, file);
@@ -199,6 +198,7 @@ final class HttpDThreadTaskAdapter extends BaseHttpThreadTaskAdapter {
       fos = new FileOutputStream(getThreadConfig().tempFile, true);
       foc = fos.getChannel();
       fic = Channels.newChannel(is);
+
       ByteBuffer bf = ByteBuffer.allocate(getTaskConfig().getBuffSize());
       //如果要通过 Future 的 cancel 方法取消正在运行的任务，那么该任务必定是可以 对线程中断做出响应 的任务。