From atenne@gmail.com Sat Jan 13 19:23:01 2024 Received: (at submit) by bugs.x2go.org; 13 Jan 2024 18:23:08 +0000 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on ymir.das-netzwerkteam.de X-Spam-Level: X-Spam-Status: No, score=-2.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,HTML_MESSAGE,SPF_HELO_NONE, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.2 Received: from mail-oi1-x233.google.com (mail-oi1-x233.google.com [IPv6:2607:f8b0:4864:20::233]) by ymir.das-netzwerkteam.de (Postfix) with ESMTPS id 5D3C15DAC0 for ; Sat, 13 Jan 2024 19:23:01 +0100 (CET) Received: by mail-oi1-x233.google.com with SMTP id 5614622812f47-3bc09844f29so6333753b6e.0 for ; Sat, 13 Jan 2024 10:23:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1705170179; x=1705774979; darn=bugs.x2go.org; h=to:subject:message-id:date:from:mime-version:from:to:cc:subject :date:message-id:reply-to; bh=C/Cibmqwnp0a7aHBU/wONJijWEyUvTEXWH5OBwyUKP4=; b=fm4Gqs4us+e1qjgwjhwnkJWDByogix2HBvBgoq84jOjliFVhNV+jfeUqiXllmKNLM2 rKpUBW3Xhm4KMPSYjc0K60CJUw6h6EGBlICwZSpMRLaVO3NVPZ3c/yduHwRZp5Oo46Co 4BebYskmQI/S0SXIvZSgAyeLcPWtnt3jEXGUcrQq+G/6TnpPWiE6CsIm2FTLQjGUKzaD eGgggMwfTm1gFbN1hXdnRFKFDe9Yi2uFYSaaF25bjWXMpg+BcNaJ2rv5r/0go9s6HCWi 6MEfw7lFKxAQAnT+q2mR6TMp6LJuWCF23LSZLcdCKpi1Y8XMNJLP83pbeujXcb2lZGV8 AJUQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705170179; x=1705774979; h=to:subject:message-id:date:from:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=C/Cibmqwnp0a7aHBU/wONJijWEyUvTEXWH5OBwyUKP4=; b=BFRaHY92jWh1aH5eBRGvOGeHsjXtx0w0NIaiQdjHvHJyV8HN0SWjJ9wodl7U6OY19v 2J7F3qW7+B2g0W8GzKOZB7XGQe9p2dFF3FIuftTO9a9kIkNsQ5+lxNKx6cf1EDdV9zFk fODbmoslOe9te6bB0FrGE1w4T5d2WOcnyILWEju8UzRdJF81GVRTqbSIp28zLfrbcBaO F3OK5qlJgtuB6fiXHXyVHOlwhcySjnT/pmOCeoGENwgG9JWDE4dxnaYi2IWwXC+Lkm2c qEmUth3X6sxci/XaEvqTzfBGpQgkWWONhmskapON7YEtiiCdrQmy5QWQdYwooVm9GZOF kTSQ== X-Gm-Message-State: AOJu0YwaInTUJFsl5uqSk0ZV6/sZD5LRBFCVsyP4bWk/btg0LB0AyI9D qzU6YO215z0FxJLaOQ9J6mKyPLuPJhQUQAZIRllyaTfnBUmN2Q== X-Google-Smtp-Source: AGHT+IEU9tXVnUQflineZ8T20vB2/E7HSjvLq/j/DsF2/nhiXNXuGCJrCrz1UsNGvBEkWihmILldDJt7SrH4XvaRXrw= X-Received: by 2002:a05:6808:3685:b0:3bd:56ce:89e3 with SMTP id cr5-20020a056808368500b003bd56ce89e3mr2789139oib.60.1705170179142; Sat, 13 Jan 2024 10:22:59 -0800 (PST) MIME-Version: 1.0 From: Avner Tenne Date: Sat, 13 Jan 2024 20:22:48 +0200 Message-ID: Subject: X11 error with Java 17 To: submit@bugs.x2go.org Content-Type: multipart/alternative; boundary="000000000000cf3855060ed7de1a" --000000000000cf3855060ed7de1a Content-Type: text/plain; charset="UTF-8" Package: x2goserver Version: 4.1.0.3-9 I'm running x2go server on Centos 7.5 using KDE desktop manager. I use the latest client version 4.1.2.2 from windows. I'm running the following Java code using the Java 17 version. public class TestDialog extends JDialog { private static final long serialVersionUID = 1L; private final JPanel contentPanel = new JPanel(); /** * Launch the application. */ public static void main(String[] args) { try { TestDialog dialog = new TestDialog(); dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE); dialog.setVisible(true); } catch (Exception e) { e.printStackTrace(); } } /** * Create the dialog. */ public TestDialog() { super(); setPreferredSize(getPreferredSize()); setBounds(100, 100, 450, 300); getContentPane().setLayout(new BorderLayout()); contentPanel.setLayout(new FlowLayout()); contentPanel.setBorder(new EmptyBorder(5, 5, 5, 5)); getContentPane().add(contentPanel, BorderLayout.CENTER); { JLabel lblNewLabel = new JLabel("New label"); contentPanel.add(lblNewLabel); } { JButton btnNewButton = new JButton("New button"); contentPanel.add(btnNewButton); } { JPanel buttonPane = new JPanel(); buttonPane.setLayout(new FlowLayout(FlowLayout.RIGHT)); getContentPane().add(buttonPane, BorderLayout.SOUTH); { JButton okButton = new JButton("OK"); okButton.setActionCommand("OK"); buttonPane.add(okButton); getRootPane().setDefaultButton(okButton); } { JButton cancelButton = new JButton("Cancel"); cancelButton.setActionCommand("Cancel"); buttonPane.add(cancelButton); } } } } When I use the x2go session type KDE I don't get any errors running my code. But, when I use application session type using terminal mode I get the following exception: java.lang.NullPointerException: Cannot invoke "sun.awt.X11.XBaseWindow.isVisible()" because "parent" is null at java.desktop/sun.awt.X11.XWindowPeer.setToplevelTransientFor(XWindowPeer.java:1688) at java.desktop/sun.awt.X11.XWindowPeer.postInit(XWindowPeer.java:253) at java.desktop/sun.awt.X11.XDecoratedPeer.postInit(XDecoratedPeer.java:105) at java.desktop/sun.awt.X11.XBaseWindow.init(XBaseWindow.java:184) at java.desktop/sun.awt.X11.XBaseWindow.(XBaseWindow.java:259) at java.desktop/sun.awt.X11.XWindow.(XWindow.java:147) at java.desktop/sun.awt.X11.XComponentPeer.(XComponentPeer.java:111) at java.desktop/sun.awt.X11.XCanvasPeer.(XCanvasPeer.java:42) at java.desktop/sun.awt.X11.XPanelPeer.(XPanelPeer.java:48) at java.desktop/sun.awt.X11.XWindowPeer.(XWindowPeer.java:134) at java.desktop/sun.awt.X11.XDecoratedPeer.(XDecoratedPeer.java:62) at java.desktop/sun.awt.X11.XDialogPeer.(XDialogPeer.java:40) at java.desktop/sun.awt.X11.XToolkit.createDialog(XToolkit.java:1084) at java.desktop/java.awt.Dialog.addNotify(Dialog.java:768) at java.desktop/java.awt.Dialog.conditionalShow(Dialog.java:917) at java.desktop/java.awt.Dialog.show(Dialog.java:1048) at java.desktop/java.awt.Component.show(Component.java:1728) at java.desktop/java.awt.Component.setVisible(Component.java:1675) at java.desktop/java.awt.Window.setVisible(Window.java:1036) at java.desktop/java.awt.Dialog.setVisible(Dialog.java:1016) at TestDialog.main(TestDialog.java:22) Is there any external X2go/desktop session that is missing in order my code will work fine. Avner --000000000000cf3855060ed7de1a Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Package: x2goserver
Version: 4.1.0.3-9
I'm running =
x2go server on Centos 7.5 using KDE desktop manager.
I use the latest client version 4.1.2.2 from windows. 
=

I'm running the following Java code usi=
ng the Java 17 version.=20

public class TestDialog extends JDialog {

	private static final =
long serialVersionUID =3D 1L;
	private final JPanel contentPanel =3D new=
 JPanel();

	/**
	 * Launch the application.
	 */
	public st=
atic void main(String[] args) {
		try {
			TestDialog dialog =3D new =
TestDialog();
			dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOS=
E);
			dialog.setVisible(true);
		} catch (Exception e) {
			e.pri=
ntStackTrace();
		}
	}

	/**
	 * Create the dialog.
	 */<=
br>	public TestDialog() {
		super();
		setPreferredSize(getPreferredS=
ize());
		setBounds(100, 100, 450, 300);
		getContentPane().setLayout=
(new BorderLayout());
		contentPanel.setLayout(new FlowLayout());
		c=
ontentPanel.setBorder(new EmptyBorder(5, 5, 5, 5));
		getContentPane().a=
dd(contentPanel, BorderLayout.CENTER);
		{
			JLabel lblNewLabel =3D =
new JLabel("New label");
			contentPanel.add(lblNewLabel);
=
		}
		{
			JButton btnNewButton =3D new JButton("New button"=
;);
			contentPanel.add(btnNewButton);
		}
		{
			JPanel button=
Pane =3D new JPanel();
			buttonPane.setLayout(new FlowLayout(FlowLayout=
.RIGHT));
			getContentPane().add(buttonPane, BorderLayout.SOUTH);
		=
	{
				JButton okButton =3D new JButton("OK");
				okButton=
.setActionCommand("OK");
				buttonPane.add(okButton);
				=
getRootPane().setDefaultButton(okButton);
			}
			{
				JButton ca=
ncelButton =3D new JButton("Cancel");
				cancelButton.setActi=
onCommand("Cancel");
				buttonPane.add(cancelButton);
			}=

		}
	}

}

When I use the x2go session type KDE =
I don't get any errors running my code.
But, when I use application session type using terminal mode I get th=
e following exception:
java.lang.NullPointerException: Cannot invoke "sun.awt.X11.XBaseWindow=
.isVisible()" because "parent" is null
=C2=A0 =C2=A0 =C2=
=A0 =C2=A0 at java.desktop/sun.awt.X11.XWindowPeer.setToplevelTransientFor(=
XWindowPeer.java:1688)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 at java.desktop/sun.a=
wt.X11.XWindowPeer.postInit(XWindowPeer.java:253)
=C2=A0 =C2=A0 =C2=A0 =
=C2=A0 at java.desktop/sun.awt.X11.XDecoratedPeer.postInit(XDecoratedPeer.j=
ava:105)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 at java.desktop/sun.awt.X11.XBaseWi=
ndow.init(XBaseWindow.java:184)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 at java.desk=
top/sun.awt.X11.XBaseWindow.<init>(XBaseWindow.java:259)
=C2=A0 =
=C2=A0 =C2=A0 =C2=A0 at java.desktop/sun.awt.X11.XWindow.<init>(XWind=
ow.java:147)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 at java.desktop/sun.awt.X11.XCo=
mponentPeer.<init>(XComponentPeer.java:111)
=C2=A0 =C2=A0 =C2=A0 =
=C2=A0 at java.desktop/sun.awt.X11.XCanvasPeer.<init>(XCanvasPeer.jav=
a:42)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 at java.desktop/sun.awt.X11.XPanelPeer=
.<init>(XPanelPeer.java:48)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 at java.de=
sktop/sun.awt.X11.XWindowPeer.<init>(XWindowPeer.java:134)
=C2=A0 =
=C2=A0 =C2=A0 =C2=A0 at java.desktop/sun.awt.X11.XDecoratedPeer.<init>=
;(XDecoratedPeer.java:62)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 at java.desktop/su=
n.awt.X11.XDialogPeer.<init>(XDialogPeer.java:40)
=C2=A0 =C2=A0 =
=C2=A0 =C2=A0 at java.desktop/sun.awt.X11.XToolkit.createDialog(XToolkit.ja=
va:1084)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 at java.desktop/java.awt.Dialog.add=
Notify(Dialog.java:768)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 at java.desktop/java=
.awt.Dialog.conditionalShow(Dialog.java:917)
=C2=A0 =C2=A0 =C2=A0 =C2=A0=
 at java.desktop/java.awt.Dialog.show(Dialog.java:1048)
=C2=A0 =C2=A0 =
=C2=A0 =C2=A0 at java.desktop/java.awt.Component.show(Component.java:1728)<=
br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 at java.desktop/java.awt.Component.setVisibl=
e(Component.java:1675)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 at java.desktop/java.=
awt.Window.setVisible(Window.java:1036)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 at j=
ava.desktop/java.awt.Dialog.setVisible(Dialog.java:1016)
=C2=A0 =C2=A0 =
=C2=A0 =C2=A0 at TestDialog.main(TestDialog.java:22)
Is there any external X2go/desktop session that is missing i=
n order my code will work fine. 

<=
/pre>
Avner
--000000000000cf3855060ed7de1a--