Illegal use of nonvirtual function call

[Andrew Haley]

Shaun Jackman writes:
 > When I compile SWT with Sun's javac and run Azureus, which uses SWT,
 > all's well. When I compile SWT to java bytecode using gcj -C, I get an
 > "Illegal use of nonvirtual function call" error message:
 > 
 >   java.lang.VerifyError: (class: org/eclipse/swt/dnd/DragSource$1,
 > method: handleEvent signature: (Lorg/eclipse/swt/widgets/Event;)V)
 > Illegal use of nonvirtualfunction call
 >         at org.eclipse.swt.dnd.DragSource.<init>(DragSource.java:178)
 >         at org.gudy.azureus2.ui.swt.views.MyTorrentsView.createDragDrop(MyTorrentsView.java:1270)
 > 
 > [Some source code snippets follow this mail.]
 > 
 > This looks like either a bug in SWT making use of a non-standard
 > "feature" in Sun's javac, or a bug in gcj. Any idea which?

I'm guessing a bug in gcj.

 > I'm trying to build a package of Azureus for Debian Sarge, which uses
 > gcj 3.3.5. I'd be interested in knowing if the problem is fixed in
 > either gcj 3.4.4 or 4.0, but I'd still like to find a work-around for
 > 3.3.5 if possible.

This probably needs a bug report with an accompanying test case.

Andrew.