[bug-classpath] [bug #13617] swing: DefaultStyledDocument(new StyleContext()) throws NullPointerException

[Timo Lindfors]

URL:
  <http://savannah.gnu.org/bugs/?func=detailitem&item_id=13617>

                 Summary: swing: DefaultStyledDocument(new StyleContext())
throws NullPointerException
                 Project: classpath
            Submitted by: lindi
            Submitted on: Sun 07/03/05 at 20:37
                Category: classpath
                Severity: 3 - Normal
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
        Platform Version: None

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Details:

Steps to reproduce:
1. Compile and run the attached testcase.

Expected results:
1. An empty window shows up.

Actual results:
1. No window is shown and the following exception is thrown:
java.lang.NullPointerException
   at java.util.Hashtable.put (Hashtable.java:437)
   at javax.swing.text.SimpleAttributeSet.addAttribute
(SimpleAttributeSet.java:66)
   at javax.swing.text.StyleContext.addAttribute (StyleContext.java:551)
   at javax.swing.text.AbstractDocument$AbstractElement.setResolveParent
(AbstractDocument.java:531)
   at javax.swing.text.DefaultStyledDocument.setLogicalStyle
(DefaultStyledDocument.java:188)
   at javax.swing.text.DefaultStyledDocument.<init>
(DefaultStyledDocument.java:86)
   at javax.swing.text.DefaultStyledDocument.<init>
(DefaultStyledDocument.java:78)
   at testcase.<init> (testcase.java:8)
   at testcase.main (testcase.java:5)

Testcase:
import javax.swing.*;
import javax.swing.text.*;
public class testcase extends JFrame {
        public static void main(String[] args) {
                (new testcase()).show();
        }
        public testcase() {
                new DefaultStyledDocument(new StyleContext());
        }
}

This testcase is reduced from omegaT available at
http://sourceforge.net/projects/omegat/






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