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Java Forum / GUI / January 2006Problem with JRE1.5 Swing on Ratpoison
I have a Java Swing app written in JDK1.3.1 with runs under X windows using the Ratpoison window manager. But when I tried running the same app using JRE1.5.0 under Ratpoison, the text and all the components/widget are missing (only the Frame shows). I have tried using the same JRE and app under IceWM window manager and it works. Any ideas why ? CK >I have a Java Swing app written in JDK1.3.1 with runs under X windows >using the Ratpoison window manager. But when I tried running the same [quoted text clipped - 3 lines] >it works. >Any ideas why ? What a strange name, Ratpoison. Have you another to try? Can you post a small piece of code that exhibits this problem?  SignatureCanadian Mind Products, Roedy Green. http://mindprod.com Java custom programming, consulting and coaching. > What a strange name, Ratpoison. Have you another to try? Ratpoison is a minimalist Window Manager for Linux. It does not need a mouse and can move away the Mouse pointer. > Can you post a small piece of code that exhibits this problem? import javax.swing.*; public class RatpoisonTest extends JFrame { /** Creates a new instance of RatpoisonTest */ public RatpoisonTest() { JLabel l = new JLabel("Hello World"); this.getContentPane().add(l); this.setSize(400, 400); // Uncomment the following to make it show in Ratpoison //this.pack(); this.setVisible(true); } public static void main(String args[]) { RatpoisonTest r = new RatpoisonTest(); } } CK > import javax.swing.*; Does it still happen if you use AWT instead of Swing? > public class RatpoisonTest extends JFrame { Personal hate: There is no need to extend JFrame here. > /** Creates a new instance of RatpoisonTest */ > public RatpoisonTest() { [quoted text clipped - 4 lines] > //this.pack(); > this.setVisible(true); Have you tried frame.validate(); after the setVisible? Or perhaps frame.addNotify(); before the setVisible. setVisible should validate the window, but does so between adding the peer (addNotify) and actually showing the window. I wonder if RatPoison is doing something nasty if the window is created but not visible. > } > > public static void main(String args[]) { This should have the standard boilerplate. java.awt.EventQueue.invokeLater(new Runnable() { public void run() { > RatpoisonTest r = new RatpoisonTest(); } }); Even if you are not using Swing, AWT is full of threading bugs. > } > } Tom Hawtin SignatureUnemployed English Java programmer http://jroller.com/page/tackline/ Ok, I have tried the Shift-Ctrl-F1 it dumps the following: a[frame0,0,0,400x400,layout=java.awt.BorderLayout,title=,resizable,normal,defaultCloseOperation=HIDE_ON_CLOSE,rootPane=javax.swing.JRootPane[,5,25,390x370,layout=javax.swing.JRootPane$RootLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=16777673,maximumSize=,minimumSize=,preferredSize=],rootPaneCheckingEnabled=true] javax.swing.JRootPane[,5,25,390x370,layout=javax.swing.JRootPane$RootLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=16777673,maximumSize=,minimumSize=,preferredSize=] javax.swing.JPanel[null.glassPane,0,0,390x370,hidden,layout=java.awt.FlowLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=16777217,maximumSize=,minimumSize=,preferredSize=] javax.swing.JLayeredPane[null.layeredPane,0,0,390x370,alignmentX=0.0,alignmentY=0.0,border=,flags=0,maximumSize=,minimumSize=,preferredSize=,optimizedDrawingPossible=true] javax.swing.JPanel[null.contentPane,0,0,390x370,layout=javax.swing.JRootPane$1,alignmentX=0.0,alignmentY=0.0,border=,flags=9,maximumSize=,minimumSize=,preferredSize=] javax.swing.JLabel[,0,0,390x370,alignmentX=0.0,alignmentY=0.0,border=,flags=8388608,maximumSize=,minimumSize=,preferredSize=,defaultIcon=,disabledIcon=,horizontalAlignment=LEADING,horizontalTextPosition=TRAILING,iconTextGap=4,labelFor=,text=Hello World,verticalAlignment=CENTER,verticalTextPosition=CENTER] Then, I tried the export AWT_TOOLKIT=MToolkit and it works ! Thanks Tom. I have not tried it in AWT (rather not rewite the whole app) and all the recoding tricks (validate(), addNotify, eventQueue) didn't work. CK > I have a Java Swing app written in JDK1.3.1 with runs under X windows > using the Ratpoison window manager. But when I tried running the same > app using JRE1.5.0 under Ratpoison, the text and all the > components/widget are missing (only the Frame shows). > I have tried using the same JRE and app under IceWM window manager and > it works. Do other Swings apps work? Does it generate any exceptions? If you do Shift-Ctrl-F1 (assuming that isn't intercepted) are the components present and correct? It might be worth switching to the old Motif toolkit and seeing if that works. In bash: export AWT_TOOLKIT=MToolkit Tom Hawtin SignatureUnemployed English Java programmer http://jroller.com/page/tackline/ > Do other Swings apps work? Does it generate any exceptions? If you do > Shift-Ctrl-F1 (assuming that isn't intercepted) are the components > present and correct? > Tom Hawtin What does Shift-CTRL-F1 do? Thanks, SignatureKnute Johnson email s/nospam/knute/ >> Do other Swings apps work? Does it generate any exceptions? If you do >> Shift-Ctrl-F1 (assuming that isn't intercepted) are the components >> present and correct? > > What does Shift-CTRL-F1 do? From java.awt.Window.preProcessKeyEvent * Implements a debugging hook -- checks to see if * the user has typed <i>control-shift-F1</i>. If so, * the list of child windows is dumped to <code>System.out</code>. That's slightly incorrect. It dumps itself and child components recursively. It does not dump owned windows at all. It should print something like this (in this example, an empty applet "AppletParents" of size 100x100). sun.applet.AppletViewer[frame0,0,0,110x175,invalid,layout=java.awt.Borde rLayout,title=Applet Viewer: AppletParents.class,resizable,normal]] sun.applet.AppletViewerPanel[panel0,5,49,100x100,invalid,layout=java.aw t.BorderLayout] AppletParents[panel1,0,0,100x100,layout=java.awt.FlowLayout] java.awt.Label[label0,5,149,100x21,invalid,align=left,text=Applet start ed.] Tom Hawtin SignatureUnemployed English Java programmer http://jroller.com/page/tackline/ >>> Do other Swings apps work? Does it generate any exceptions? If you do >>> Shift-Ctrl-F1 (assuming that isn't intercepted) are the components [quoted text clipped - 23 lines] > > Tom Hawtin Thanks Tom, SignatureKnute Johnson email s/nospam/knute/ Other swing apps work ... seems to depend on how you code the screen. There is no exception on the console. I have not tried the Shift-Ctrl-F1 yet or the export AWT_TOOLKIT. I have tested with JRE1.3.1 and JRE1.4.2 and the app works (i.e. screen shows up) but not on JRE1.5.0 CK > I have a Java Swing app written in JDK1.3.1 with runs under X windows > using the Ratpoison window manager. But when I tried running the same > app using JRE1.5.0 under Ratpoison, the text and all the > components/widget are missing (only the Frame shows). > Any ideas why ? I've not noticed this particular problem but I have noticed two other issues with using ratpoison. Firstly, moving toolbars doesn't work - they just expand to fill the screen and stop anything else from being visible. Secondly, drop down menus in combo boxes will not appear beyond the area of a containing dialog. I don't know if there's any relationship between these problems and yours, Richard See: http://java.sun.com/j2se/1.5.0/system-configurations.html I suspect the window manager compliance issue with standards such as ICCCM, EWMH etc. ... 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