[Bug-kawa] [bug #48347] Exception on import of class with public instance fields and without no-args ctor

[Nathan S.]

URL:
  <http://savannah.gnu.org/bugs/?48347>

                 Summary: Exception on import of class with public instance
fields and without no-args ctor
                 Project: Kawa
            Submitted by: nathans
            Submitted on: Wed 29 Jun 2016 08:01:35 PM GMT
                Category: None
                Severity: 3 - Normal
              Item Group: Run-time exception
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any

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Details:

Steps to reproduce:

Create a file Example.java with contents:

public class Example {
        public Object item;
        public Example(Object item) {
                this.item = item;
        }
}


Create a file test.scm with contents:


(import Example)

(display (Example:new #!null))


Run "javac Example.java".  Then with the current directory included on the
classpath run "kawa -f test.scm".  An exception is thrown from
gnu.expr.ModuleContext.findInstance because it attempts to invoke the no-args
constructor of Example and there is not one.  It does not seem to matter if I
put Example in a package other than the default package.

Strangely, if I change the visibility of Example's item field from public to
private the error does not occur.




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File Attachments:


-------------------------------------------------------
Date: Wed 29 Jun 2016 08:01:35 PM GMT  Name: Example.java  Size: 102B   By:
nathans

<http://savannah.gnu.org/bugs/download.php?file_id=37627>
-------------------------------------------------------
Date: Wed 29 Jun 2016 08:01:35 PM GMT  Name: test.scm  Size: 49B   By: nathans

<http://savannah.gnu.org/bugs/download.php?file_id=37628>

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