static method problem

["Walter C. Pelissero" <walter at pelissero dot org>]

With Kawa 1.6.70, if I enter interactively this form:

(invoke-static <javax.swing.JOptionPane> 'showMessageDialog
	       #!null "blah blah" "title"
	       (static-field <javax.swing.JOptionPane> 'ERROR_MESSAGE))

it works as expected.

But if I define a funcion using it:

(define (swing:error-dialog (str :: <string>))
  (invoke-static  <javax.swing.JOptionPane> 'showMessageDialog
		  #!null str "title"
		  (static-field <javax.swing.JOptionPane> 'ERROR_MESSAGE)))

I get this error:

Exception in thread "main" java.lang.VerifyError: (class: atInteractiveLevel, method: swing$ClErrorDialog signature: (Lgnu/kawa/util/FString;)Ljava/lang/Object;) Expecting to find object/array on stack
	at java.lang.ClassLoader.resolveClass0(Native Method)
	at java.lang.ClassLoader.resolveClass(ClassLoader.java, Compiled Code)
	at gnu.bytecode.ArrayClassLoader.loadClass(ArrayClassLoader.java, Compiled Code)
	at gnu.expr.LambdaExp.evalToClass(LambdaExp.java, Compiled Code)
	at gnu.expr.LambdaExp.eval(LambdaExp.java, Compiled Code)
	at gnu.expr.ModuleExp.evalModule(ModuleExp.java, Compiled Code)
	at kawa.Shell.run(Shell.java, Compiled Code)
	at kawa.Shell.run(Shell.java, Compiled Code)
	at kawa.Shell.run(Shell.java, Compiled Code)
	at kawa.repl.main(repl.java, Compiled Code)

Turning the procedure in a macro works in "interpreted mode" but if I
try to compile it I get this error:

<unknown>:0: Literals: Internal error:java.lang.NullPointerException
java.lang.NullPointerException
	at gnu.expr.LitTable.writeObject(LitTable.java, Compiled Code)
	at gnu.expr.LitTable.writeObject(LitTable.java, Compiled Code)
	at kawa.lang.SyntaxRule.writeExternal(SyntaxRule.java, Compiled Code)
	at gnu.expr.LitTable.writeObject(LitTable.java, Compiled Code)
	at gnu.expr.LitTable.writeObject(LitTable.java, Compiled Code)
	at kawa.lang.SyntaxRules.writeExternal(SyntaxRules.java, Compiled Code)
	at gnu.expr.LitTable.writeObject(LitTable.java, Compiled Code)
	at kawa.lang.Macro.writeExternal(Macro.java, Compiled Code)
	at gnu.expr.LitTable.writeObject(LitTable.java, Compiled Code)
	at gnu.expr.LitTable.emit(LitTable.java, Compiled Code)
	at gnu.expr.Literal.emit(Literal.java, Compiled Code)
	at gnu.expr.Compilation.addClass(Compilation.java, Compiled Code)
	at gnu.expr.Compilation.<init>(Compilation.java, Compiled Code)
	at gnu.expr.ModuleExp.compileToFiles(ModuleExp.java, Compiled Code)
	at kawa.lang.CompileFile.compile_to_files(CompileFile.java, Compiled Code)
	at kawa.repl.main(repl.java, Compiled Code)

Looks like a bug to me, but I might be missing something basic.

-- 
walter pelissero
http://www.pelissero.org