Name: aaC67449 Date: 01/06/99


JTextComponent.getText(int pos,int len) throws unexpected StringIndexOutOfBoundsException, when len<0, but should throw BadLocationException instead.

javadoc says:"
public String getText(int offs,
                      int len)
               throws BadLocationException

      Fetches a portion of the text represented by the component. Returns an empty string if length is 0.
      Parameters:
            offs - the offset >= 0
            len - the length >= 0
      Returns:
            the text
      Throws:
            BadLocationException - if the offset or length are invalid

"

áccordingly, this method does not work correctly in subclasses (JTextField, JPasswordField)

See example.


--------------- Example---------------------------
import javax.swing.text.*;

public class Test {
    public static void main(String argv[]) {
       JTextField c= new JTextField();
       c.setText("Test");
       try {
           c.getText(0,-2);
       } catch (javax.swing.text.BadLocationException e) {
            System.out.println("Ok");
       }
    }
}

----------------output------------------
Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: -2
        at java.lang.String.<init>(String.java:237)
        at javax.swing.text.GapContent.getString(GapContent.java:174)
        at javax.swing.text.AbstractDocument.getText(AbstractDocument.java:498)
        at javax.swing.text.JTextComponent.getText(JTextComponent.java:798)
        at Test.main(Test.java:9)


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