Weird java.lang.StackOverflowError in Jar file

Ok… I packaged up my app into a JAR file and set it off for someone to try.

When they run it it gives a java.lang.StackOverflowError that I can’t seem to figure out why? I get an obvious stack that this huge but can’t really make any sense of it.

Along with my app JAR file I have included
swt.jar
JGoSWT.jar
JGoSWTSVG.jar
swt-*.dll

… it runs without a problem on mine… any clues or things I should look at? could it be an incorrect dll or jar file on the other system?

dWiGhT

I don’t know of any problems. Does the stack trace give you any clue?

Here is the last part of the trace (which repeats for about 20 pages)…

java.lang.StackOverflowError
java.lang.StackOverflowError
at org.eclipse.swt.widgets.EventTable.hooks(EventTable.java:51)
at org.eclipse.swt.widgets.Widget.hooks(Widget.java:620)
at org.eclipse.swt.widgets.Composite.WM_PRINTCLIENT(Composite.java:1340)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:3304)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025)
at org.eclipse.swt.internal.win32.OS.CallWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.CallWindowProc(OS.java:1842)
at org.eclipse.swt.widgets.Button.callWindowProc(Button.java:327)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:3334)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025)
at org.eclipse.swt.internal.win32.OS.SetWindowTextW(Native Method)
at org.eclipse.swt.internal.win32.OS.SetWindowText(OS.java:2636)
at org.eclipse.swt.widgets.Button._setText(Button.java:290)
at org.eclipse.swt.widgets.Button.setText(Button.java:914)
at com.nwoods.jgo.JGoButton.paint(Unknown Source)
at com.nwoods.jgo.JGoView.paintViewObjects(Unknown Source)
at com.nwoods.jgo.JGoView.paintView(Unknown Source)
at com.nwoods.jgo.JGoView.paintControl(Unknown Source)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:83)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:928)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:952)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:937)
at org.eclipse.swt.widgets.Composite.WM_PRINTCLIENT(Composite.java:1355)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:3304)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025)
at org.eclipse.swt.internal.win32.OS.CallWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.CallWindowProc(OS.java:1842)
at org.eclipse.swt.widgets.Button.callWindowProc(Button.java:327)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:3334)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025)
at org.eclipse.swt.internal.win32.OS.SetWindowTextW(Native Method)
at org.eclipse.swt.internal.win32.OS.SetWindowText(OS.java:2636)
at org.eclipse.swt.widgets.Button._setText(Button.java:290)
at org.eclipse.swt.widgets.Button.setText(Button.java:914)

I also tried using the -Xss1m option and got the same.

I was able to to get it to work on other systems by replacing the JGoSWT*.jar and swt.jar/swt-*.dll with the ones included in the 5.15 versions… so now I am really confused! Confused

dWiGhT

Are you trying to print a JGoButton? When I try that, nothing shows up on the printed page, since there is no support for printing of Controls.

If you don't really need a Button widget/Control, it might be best to implement a JGoArea containing a JGo3DRect and a JGoText, implementing a doMouseClick method (or a JGoViewListener looking for JGoViewEvent.CLICKED).

My buttons are setup like this:

// Create a button for things I want it to do
myView.addObjectAtTail( new OpenButton( this, new Point(20,10), new Dimension(50,25) ) );
saveButton = new SaveButton( this, new Point(80,10), new Dimension(50,25) );
myView.addObjectAtTail( saveButton );
myView.addObjectAtTail( new GenXmlButton( new Point(140,10), new Dimension(60,25) ) );

and I am not trying to print them. The buttons are extending the JGoButton and overriding the doMouseClick but other then that nothing else.

dWiGhT

Here’s a simple example node using two JGoButtons:

http://www.nwoods.com/forum/uploads/TestCounterNode.java
http://www.nwoods.com/forum/uploads/TestButton.java
This works fine with 5.2.1; I haven't tried it with 5.1.x.

Can’t seem to download these…

Try again.