java - OkHttp3 body stream is empty in multithreaded environment -


i have class downloads file on http , saves file.

the class called own threadexecutor run 2 downloads in parallel.
unfortunately, response.body().source() of request empty if data downloaded (checked charlesproxy), size of buffer 0.
seems okio or okhttp have problems being called 2 different threads because 1 thread in threadpool don't see behavior.

the network stack ohttp based (version 3.8.1). 

    private string downloaddatatofile(@nonnull string resourcename, @nonnull file localfile,                                    @nonnull transfercanceller transfercanceller,                                    response response, call call) throws ioexception, smartdriveexception {     bufferedsource bufferedsource = null;     outputstream outputstream = null;     try {         bufferedsource = response.body().source();         timber.i("start download " + url + " -> " + localfile);         smartdrivefileutils.deleteifexists(localfile); // delete old file in case have have half downloaded         createdirectoryifneeded(localfile);         if (!localfile.createnewfile()) {             timber.e("could not create new file download");         }         outputstream = new fileoutputstream(localfile, false);         long payloadsize = response.body().contentlength();          byte[] buffer = new byte[transfer_buffer_size];         try {             while (!transfercanceller.iscancelled() && payloadsize != 0) {                 int read = bufferedsource.read(buffer);                 if (read == -1) {                     break;                 }                 outputstream.write(buffer, 0, read);             }         } catch (eofexception exception) {             ignoreokhttpreadingfromemptystreamexception(exception);         }         return ontransferfinished(resourcename, localfile, transfercanceller, response, call);     } {         io.closequietly(bufferedsource);         io.closequietly(outputstream);     } }


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