Set the default timeout values to non-zero

[arinto]

I have long running thread the repeatedly perform API calls and after running for several days, this thread stuck at this point (below it the jstack output):

"pool-3-thread-1" #20 prio=5 os_prio=0 tid=0x00007f30ac4ba000 nid=0x4962 runnable [0x00007f304b56d000]
   java.lang.Thread.State: RUNNABLE
        at java.net.SocketInputStream.socketRead0(Native Method)
        at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
        at java.net.SocketInputStream.read(SocketInputStream.java:170)
        at java.net.SocketInputStream.read(SocketInputStream.java:141)
        at sun.security.ssl.InputRecord.readFully(InputRecord.java:465)
        at sun.security.ssl.InputRecord.read(InputRecord.java:503)
        at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:961)
        - locked <0x00000005cc52ffa0> (a java.lang.Object)
        at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:918)
        at sun.security.ssl.AppInputStream.read(AppInputStream.java:105)
        - locked <0x00000005cc530090> (a sun.security.ssl.AppInputStream)
        at java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
        at java.io.BufferedInputStream.read1(BufferedInputStream.java:286)
        at java.io.BufferedInputStream.read(BufferedInputStream.java:345)
        - locked <0x00000005cc5300c0> (a java.io.BufferedInputStream)
        at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:704)
        at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:647)
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1535)
        - locked <0x00000005cc530100> (a sun.net.www.protocol.https.DelegateHttpsURLConnection)
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1440)
        - locked <0x00000005cc530100> (a sun.net.www.protocol.https.DelegateHttpsURLConnection)
        at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480)
        at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:338)
        at org.jinstagram.http.Response.<init>(Response.java:33)
        at org.jinstagram.http.Request.doSend(Request.java:96)
        at org.jinstagram.http.Request.send(Request.java:69)
        at org.jinstagram.Instagram.getApiResponse(Instagram.java:862)
        at org.jinstagram.Instagram.createInstagramObject(Instagram.java:781)
        at org.jinstagram.Instagram.getUserFeedInfoNextPage(Instagram.java:233)
        at xxx.xxx.yyy.run(yyy.java:165)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)

According to the output, the thread is waiting for the socketRead0 to finish. And in this case, due to some error, the socketRead0 method is never finish.

We need to have some timeout mechanism to alleviate this issue, and it seems that we can do that via InstagramConfig. I'm testing this solution now, and will update this issue accordingly. CMIIW.

Therefore, to prevent jInstagram users experiencing the same issue, I suggest we set the default values for this configuration to non-zero value.

[Piccirello]

I too have had threads get blocked due to a lack of a default timeout. I've since set a timeout with InstagramConfig, but the need to do this is not at all clear from the (lack of) documentation.

Changes proposed in 2dc12f7