[jira] Updated: (HARMONY-4212) [classlib][nio] deregistered channel.configureBlocking(true) throws IllegalBlockingModeException

["Sergey Dmitriev (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HARMONY-4212?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sergey Dmitriev updated HARMONY-4212:
-------------------------------------

    Attachment: 4212workaround.patch

The 4212workaround.patch is not a fix but kind of dirty fix to make it possible to pass the provided testcase (select7.java) and to enable Oracle OC4J execution. Please treat it as this.

> [classlib][nio] deregistered channel.configureBlocking(true) throws IllegalBlockingModeException
> ------------------------------------------------------------------------------------------------
>
>                 Key: HARMONY-4212
>                 URL: https://issues.apache.org/jira/browse/HARMONY-4212
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>            Reporter: Sergey Dmitriev
>         Attachments: 4212workaround.patch
>
>
> In nio.channels: after deregistering and removing SocketChannel from selector calling channel.configureBlocking(true) throws IllegalBlockingModeException. Actually this not how it is have to be. Please see the mini test. (Please execute "telnet localhost 9999" in other shell after test launch).
> ] guy@box ~
> ] cat select7.java
> import java.nio.channels.*;
> import java.net.*;
> import java.util.*;
> public class select7 {
>     public static void main(String[] args) throws Exception {
>         Selector selector = Selector.open();
>         ServerSocketChannel ssc = ServerSocketChannel.open();
>         ssc.socket().bind(new InetSocketAddress(9999));
>         // server listening
>         System.out.println("Waiting on accept...");
>         SocketChannel sc = ssc.accept();
>         System.out.println("Done.");
>         // register & select
>         sc.configureBlocking(false);
>         sc.register(selector, SelectionKey.OP_READ);
>         System.out.println("Waiting on select()...");
>         int res = selector.select();
>         System.out.println("Done. " + res + " key(s) up.");
>         // run through the selected keys
>         Iterator readyKeys = selector.selectedKeys().iterator();
>         while (readyKeys.hasNext()) {
>             SelectionKey key = (SelectionKey)readyKeys.next();
>             System.out.println("Selected key = " + key);
>             key.cancel();
>             readyKeys.remove();
>             SelectableChannel ch = key.channel();
>             ch.configureBlocking(true);
>         }
>     }
> }
> ] guy@box ~
> ] ~/jre2/bin/java -showversion select7
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r540000, (May 21 2007), Linux/ia32/gcc 3.3.3, release build
> http://incubator.apache.org/harmony
> Waiting on accept...
> Done.
> Waiting on select()...
> Done. 1 key(s) up.
> Selected key = org.apache.harmony.nio.internal.SelectionKeyImpl@4507d7e0
> Uncaught exception in main:
> java.nio.channels.IllegalBlockingModeException
>         at java.nio.channels.spi.AbstractSelectableChannel.configureBlocking(AbstractSelectableChannel.java:206)
>         at select7.main(select7.java:39)
> ] guy@box ~
> ] java -showversion select7
> java version "1.5.0_06"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05)
> BEA JRockit(R) (build R26.3.0-32-58710-1.5.0_06-20060308-2022-linux-ia32, )
> Waiting on accept...
> Done.
> Waiting on select()...
> Done. 1 key(s) up.
> Selected key = sun.nio.ch.SelectionKeyImpl@10e847b

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.