Android源码中的低级错误

我这里要说的是MediaScanner.java,代码连接http://android.git.kernel.org/?p=platform/frameworks/base.git;a=blob_plain;f=media/java/android/media/MediaScanner.java;hb=HEAD

请看pruneDeadThumbnailFiles()这个函数

Cursor c = mMediaProvider.query(
                    mThumbsUri,
                    new String [] { "_data" },
                    null,
                    null,
                    null);
            Log.v(TAG, "pruneDeadThumbnailFiles... " + c);
            if (c != null && c.moveToFirst()) {
                do {
                    String fullPathString = c.getString(0);
                    existingFiles.remove(fullPathString);
                } while (c.moveToNext());
            }

            for (String fileToDelete : existingFiles) {
                if (Config.LOGV)
                    Log.v(TAG, "fileToDelete is " + fileToDelete);
                try {
                    (new File(fileToDelete)).delete();
                } catch (SecurityException ex) {
                }
            }

            Log.v(TAG, "/pruneDeadThumbnailFiles... " + c);
            if (c != null) {
                c.close();
            }

 难道写这个函数的工程师不知道要把数据库游标的关闭放在finally里面吗？导致了这样的问题：

01-06 00:19:22.949: ERROR/StrictMode(514): Releasing statement in a finalizer. Please ensure that you explicitly call close() on your cursor: SELECT _id, date_modified, _data FROM video WHERE (mime_type != 'video/avi'  AND mime_type != 'video
01-06 00:19:22.949: ERROR/StrictMode(514): android.database.sqlite.DatabaseObjectNotClosedException: Application did not close the cursor or database object that was opened here
01-06 00:19:22.949: ERROR/StrictMode(514):     at android.database.sqlite.SQLiteCompiledSql.<init>(SQLiteCompiledSql.java:63)
01-06 00:19:22.949: ERROR/StrictMode(514):     at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:83)
01-06 00:19:22.949: ERROR/StrictMode(514):     at android.database.sqlite.SQLiteQuery.<init>(SQLiteQuery.java:49)
01-06 00:19:22.949: ERROR/StrictMode(514):     at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:42)
01-06 00:19:22.949: ERROR/StrictMode(514):     at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1356)
01-06 00:19:22.949: ERROR/StrictMode(514):     at android.database.sqlite.SQLiteQueryBuilder.query(SQLiteQueryBuilder.java:330)
01-06 00:19:22.949: ERROR/StrictMode(514):     at com.android.providers.media.MediaProvider.query(MediaProvider.java:1607)
01-06 00:19:22.949: ERROR/StrictMode(514):     at android.content.ContentProvider$Transport.bulkQuery(ContentProvider.java:174)
01-06 00:19:22.949: ERROR/StrictMode(514):     at android.content.ContentProviderNative.onTransact(ContentProviderNative.java:111)
01-06 00:19:22.949: ERROR/StrictMode(514):     at android.os.Binder.execTransact(Binder.java:320)
01-06 00:19:22.949: ERROR/StrictMode(514):     at dalvik.system.NativeStart.run(Native Method)