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Tuesday, October 25th 2011, 6:05pm
Console application
Hello everyone!
i've a problem whith a console application. I've selected "console application" and developed my application. I've compiled the application like JAR and testet on a XP machine in the console windows and all it's ok. I've copied the JAR file on a linux machine and i recive this messasge:
Exception in thread "main" java.awt.HeadlessException:
No X11 DISPLAY variable was set, but this program performed an operation which requires it.
at java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:159)
at java.awt.Window.<init>(Window.java:432)
at java.awt.Frame.<init>(Frame.java:403)
at java.awt.Frame.<init>(Frame.java:36
at javax.swing.SwingUtilities$SharedOwnerFrame.<init>(SwingUtilities.java:1727)
at javax.swing.SwingUtilities.getSharedOwnerFrame(SwingUtilities.java:1804)
at javax.swing.JDialog.<init>(JDialog.java:253)
at VBA.ExceptionDialog.<init>(ExceptionDialog.java:34)
at VBA.Interaction.MsgBox(Interaction.java:367)
at Module1.main(Module1.jsrc:140)
It appens on the line in which i do a executeQuery. Maybe for some reason there is some problem on the Select statement, but what sound really strange to me and afraid me it's that the application try to open a Dialog/Message box even if the application it's a console application. Teorically it shuold not do any graphical call.
In my code there aren't MSGBOX call, only java#lang#system.out.println().
I don't want to know why the executeQuery goes in troubles, but i want to know why a console application do a graphical call and how to avoid this.
Please give some help, i need it ASAP.
Thanks a lot
Mauro
i've a problem whith a console application. I've selected "console application" and developed my application. I've compiled the application like JAR and testet on a XP machine in the console windows and all it's ok. I've copied the JAR file on a linux machine and i recive this messasge:
Exception in thread "main" java.awt.HeadlessException:
No X11 DISPLAY variable was set, but this program performed an operation which requires it.
at java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:159)
at java.awt.Window.<init>(Window.java:432)
at java.awt.Frame.<init>(Frame.java:403)
at java.awt.Frame.<init>(Frame.java:36
at javax.swing.SwingUtilities$SharedOwnerFrame.<init>(SwingUtilities.java:1727)
at javax.swing.SwingUtilities.getSharedOwnerFrame(SwingUtilities.java:1804)
at javax.swing.JDialog.<init>(JDialog.java:253)
at VBA.ExceptionDialog.<init>(ExceptionDialog.java:34)
at VBA.Interaction.MsgBox(Interaction.java:367)
at Module1.main(Module1.jsrc:140)
It appens on the line in which i do a executeQuery. Maybe for some reason there is some problem on the Select statement, but what sound really strange to me and afraid me it's that the application try to open a Dialog/Message box even if the application it's a console application. Teorically it shuold not do any graphical call.
In my code there aren't MSGBOX call, only java#lang#system.out.println().
I don't want to know why the executeQuery goes in troubles, but i want to know why a console application do a graphical call and how to avoid this.
Please give some help, i need it ASAP.
Thanks a lot
Mauro
Wednesday, October 26th 2011, 5:00pm
RE: Console application
If you compile your code to a *.jar file the compiler generates a link to a window for exceptions.I don't want to know why the executeQuery goes in troubles, but i want to know why a console application do a graphical call [...]
For example: If your application gives out an FileNotFoundException, then in the IDE it will be printed out in the textbox at the bottom of the IDE. But if you have compiled it, for the error-outpuit there will be created a Window, where yo can see the error message in it.
Don't compile to a jar file. Do it youself. Running your program in the IDE on the fly. Then go over the menu to the temp-path, where the Jaabaco *.class-files are generated and ctreate with this files your jar.
Quoted
[...] and how to avoid this.
For this you need additional a Jabaco Framework which was only on the fly compiled.
Here are binaries of it:
[ FrameworkTest-rev84-OnTheFly.zip ]
Greatings
theuserbl
Wednesday, October 26th 2011, 6:21pm
RE: RE: Console application
Ok, before you ask, what I mean with
I mean: Going over the menu "Project" -> "Open Working Directory".
If you start Jabaco, the directory is at first empty. But if you start your program in the IDE (with [F5] or "Project" -> "Start"), then there are all neded files are generated.
Greatings
theuserbl
Then go over the menu to the temp-path, where the Jaabaco *.class-files are generated and ctreate with this files your jar.
I mean: Going over the menu "Project" -> "Open Working Directory".
If you start Jabaco, the directory is at first empty. But if you start your program in the IDE (with [F5] or "Project" -> "Start"), then there are all neded files are generated.
Greatings
theuserbl
This post has been edited 2 times, last edit by "theuserbl" (Oct 26th 2011, 6:51pm)
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