X2Go Bug report logs - #645
Connection is lost when using java programs

version graph

Package: x2goclient; Maintainer for x2goclient is X2Go Developers <x2go-dev@lists.x2go.org>; Source for x2goclient is src:x2goclient.

Reported by: Johannes Boesl <j.boesl@adito.de>

Date: Sat, 18 Oct 2014 14:10:01 UTC

Severity: normal

Found in version 4.0.1.1-1ubuntu1

Full log

Message #15 received at 645@bugs.x2go.org (full text, mbox, reply):

Received: (at 645) by bugs.x2go.org; 21 Dec 2015 19:56:55 +0000
From miguel.dilaj@gmail.com  Mon Dec 21 20:56:55 2015
X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on
	ymir.das-netzwerkteam.de
X-Spam-Level: **
X-Spam-Status: No, score=2.6 required=5.0 tests=BAYES_50,FREEMAIL_FROM,
	HTML_MESSAGE,MISSING_SUBJECT,T_DKIM_INVALID,URIBL_BLOCKED autolearn=no
	version=3.3.2
Received: from mail-wm0-f50.google.com (mail-wm0-f50.google.com [74.125.82.50])
	by ymir.das-netzwerkteam.de (Postfix) with ESMTPS id 08F555DA52
	for <645@bugs.x2go.org>; Mon, 21 Dec 2015 20:56:55 +0100 (CET)
Received: by mail-wm0-f50.google.com with SMTP id p187so82053536wmp.0
        for <645@bugs.x2go.org>; Mon, 21 Dec 2015 11:56:54 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20120113;
        h=to:from:message-id:date:user-agent:mime-version:content-type;
        bh=VEENFJpsMWflvMWZJvHF/tfZMO9AxcvHV9NouTMQbT8=;
        b=DY8PrlFIhoKqW0/0DOQSa/O6SMt+tm6Slgd7nA3lLdiHIOCbNMqMNO0cSh1fAzB+LP
         yBBC1Ly+SxrfikNdxShGKLhhaiE5F9GpZ4bC+O4XRKfmdycTC3Ij27fvZKRlHBn/U+tr
         0W+AFPIDVf8aFwJO75rcKlcEzv+RUfM0UvSdE9PqQlZ44SDoqnCxqte11ejtX1TeCnsC
         Xul3v8BK2D9EqkQGQByeFuhxzQ8m+0Xiwhmv+zUg2fW6NDROh3OhTtqEz+WiSvIsFZ8h
         anMQ5Ov8hUA8MtGsQGtwUB+uKRZW+I1VrAzevY+KjjyK5EPQzZvlLuPXD8XQR79B83mp
         CGbQ==
X-Received: by 10.194.90.243 with SMTP id bz19mr23361439wjb.128.1450727814458;
        Mon, 21 Dec 2015 11:56:54 -0800 (PST)
Received: from [192.168.7.105] ([181.164.173.51])
        by smtp.googlemail.com with ESMTPSA id f11sm21555091wmd.7.2015.12.21.11.56.50
        for <645@bugs.x2go.org>
        (version=TLSv1/SSLv3 cipher=OTHER);
        Mon, 21 Dec 2015 11:56:52 -0800 (PST)
To: 645@bugs.x2go.org
From: Miguel Dilaj <miguel.dilaj@gmail.com>
Message-ID: <56785A64.9090401@gmail.com>
Date: Mon, 21 Dec 2015 17:00:36 -0300
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101
 Thunderbird/38.4.0
MIME-Version: 1.0
Content-Type: multipart/alternative;
 boundary="------------090408020101000006010806"

[Message part 1 (text/plain, inline)]
Hi all,

If you are using JDK8, and running the offending program using strace 
causes entries like this one:

     java.lang.ClassCastException: sun.awt.image.BufImgSurfaceData 
cannot be cast to sun.java2d.xr.XRSurfaceData

Then it's not an X2Go bug, it's a Java bug. See 
http://bugs.java.com/bugdatabase/view_bug.do?bug_id=7172749

Many Java programs are affected when run over X2Go.
The only workaround I've found is downgrading to JDK7, where the bug is 
not present.
Presumably Oracle will solve it in JDK9, but I don't have the time to 
extensively test it.
Hope that helps!
Kind regards,

Miguel


[Message part 2 (text/html, inline)]

Send a report that this bug log contains spam.

X2Go Developers <owner@bugs.x2go.org>. Last modified: Sat Apr 20 11:55:12 2024; Machine Name: ymir.das-netzwerkteam.de

X2Go Bug tracking system

Debbugs is free software and licensed under the terms of the GNU Public License version 2. The current version can be obtained from https://bugs.debian.org/debbugs-source/.

Copyright © 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson, 2005-2017 Don Armstrong, and many other contributors.