Name: ddT132432 Date: 11/26/2001
java version "1.4.0-beta3"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta3-b84)
Java HotSpot(TM) Client VM (build 1.4.0-beta3-b84, mixed mode)
1) Compile the program using the arguement -deprecation
2)
---
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class TextFieldLimiter extends JFrame
{
TextFieldLimiter()
{
super("TextField tester");
JPanel panel = (JPanel)getContentPane();
MyTextField tf = new MyTextField(10);
panel.add(tf,BorderLayout.CENTER);
setSize(100,75);
setVisible(true);
}
public static void main(String[] args)
{
TextFieldTester t = new TextFieldTester();
t.addWindowListener( new WindowAdapter()
{
public void windowClosing( WindowEvent e )
{
System.exit(0);
}
}
);
}
}
class MyTextField extends JTextField
{
protected void processKeyEvent(KeyEvent ke)
{
if(e.getModifiers() == 0)
{
int keyChar = e.getKeyChar();
if(keyChar >= '0' && keyChar <= '9' || keyChar == '\n')
{
super.processKeyEvent(e);
}
}
}
}
---
3)
TextFieldTester.java:5: interface expected here
class TextFieldLimiter extends JFrame implements KeyAdapter
^
TextFieldTester.java:13: cannot resolve symbol
symbol : constructor MyTextField (int)
location: class MyTextField
MyTextField tf = new MyTextField(10);
^
TextFieldTester.java:17: addKeyListener(java.awt.event.KeyListener) in
java.awt.Component cannot be applied to (TextFieldLimiter)
tf.addKeyListener(this);
^
.\TextFieldTester.java:5: duplicate class: TextFieldLimiter
class TextFieldLimiter extends JFrame implements KeyAdapter
^
.\TextFieldTester.java:39: duplicate class: MyTextField
class MyTextField extends JTextField
^
TextFieldTester.java:25: cannot resolve symbol
symbol : constructor TextFieldTester ()
location: class TextFieldTester
TextFieldTester t = new TextFieldTester();
^
TextFieldTester.java:27: cannot resolve symbol
symbol : method addWindowListener (<anonymous java.awt.event.WindowAdapter>)
location: class TextFieldTester
t.addWindowListener( new WindowAdapter()
^
An exception has occurred in the compiler (1.4.0-beta3). Please file a bug at
the Java Developer Connection (http://java.sun.com/cgi-bin/bugreport.cgi)
after checking the Bug Parade for duplicates. Include your program and the
following diagnostic in your report. Thank you.
java.lang.ClassCastException: com.sun.tools.javac.v8.code.Type$ErrorType
at com.sun.tools.javac.v8.comp.Resolve.instantiate(Resolve.java:203)
at com.sun.tools.javac.v8.comp.Attr.checkId(Attr.java:1330)
at com.sun.tools.javac.v8.comp.Attr._case(Attr.java:1226)
at com.sun.tools.javac.v8.tree.Tree$Select.visit(Tree.java:1063)
at com.sun.tools.javac.v8.comp.Attr.attribTree(Attr.java:259)
at com.sun.tools.javac.v8.comp.Attr.attribExpr(Attr.java:274)
at com.sun.tools.javac.v8.comp.Attr._case(Attr.java:833)
at com.sun.tools.javac.v8.tree.Tree$Apply.visit(Tree.java:869)
at com.sun.tools.javac.v8.comp.Attr.attribTree(Attr.java:259)
at com.sun.tools.javac.v8.comp.Attr.attribExpr(Attr.java:282)
at com.sun.tools.javac.v8.comp.Attr._case(Attr.java:661)
at com.sun.tools.javac.v8.tree.Tree$Exec.visit(Tree.java:765)
at com.sun.tools.javac.v8.comp.Attr.attribTree(Attr.java:259)
at com.sun.tools.javac.v8.comp.Attr.attribStat(Attr.java:296)
at com.sun.tools.javac.v8.comp.Attr.attribStats(Attr.java:314)
at com.sun.tools.javac.v8.comp.Attr._case(Attr.java:462)
at com.sun.tools.javac.v8.tree.Tree$Block.visit(Tree.java:539)
at com.sun.tools.javac.v8.comp.Attr.attribTree(Attr.java:259)
at com.sun.tools.javac.v8.comp.Attr.attribExpr(Attr.java:274)
at com.sun.tools.javac.v8.comp.Attr._case(Attr.java:651)
at com.sun.tools.javac.v8.tree.Tree$If.visit(Tree.java:748)
at com.sun.tools.javac.v8.comp.Attr.attribTree(Attr.java:259)
at com.sun.tools.javac.v8.comp.Attr.attribStat(Attr.java:296)
at com.sun.tools.javac.v8.comp.Attr.attribStats(Attr.java:314)
at com.sun.tools.javac.v8.comp.Attr._case(Attr.java:462)
at com.sun.tools.javac.v8.tree.Tree$Block.visit(Tree.java:539)
at com.sun.tools.javac.v8.comp.Attr.attribTree(Attr.java:259)
at com.sun.tools.javac.v8.comp.Attr.attribExpr(Attr.java:274)
at com.sun.tools.javac.v8.comp.Attr._case(Attr.java:651)
at com.sun.tools.javac.v8.tree.Tree$If.visit(Tree.java:748)
at com.sun.tools.javac.v8.comp.Attr.attribTree(Attr.java:259)
at com.sun.tools.javac.v8.comp.Attr.attribStat(Attr.java:296)
at com.sun.tools.javac.v8.comp.Attr.attribStats(Attr.java:314)
at com.sun.tools.javac.v8.comp.Attr._case(Attr.java:462)
at com.sun.tools.javac.v8.tree.Tree$Block.visit(Tree.java:539)
at com.sun.tools.javac.v8.comp.Attr.attribTree(Attr.java:259)
at com.sun.tools.javac.v8.comp.Attr.attribStat(Attr.java:296)
at com.sun.tools.javac.v8.comp.Attr._case(Attr.java:415)
at com.sun.tools.javac.v8.tree.Tree$MethodDef.visit(Tree.java:474)
at com.sun.tools.javac.v8.comp.Attr.attribTree(Attr.java:259)
at com.sun.tools.javac.v8.comp.Attr.attribStat(Attr.java:296)
at com.sun.tools.javac.v8.comp.Attr.attribClass(Attr.java:1489)
at com.sun.tools.javac.v8.comp.Attr.attribClass(Attr.java:1456)
at com.sun.tools.javac.v8.JavaCompiler.compile(JavaCompiler.java:396)
at com.sun.tools.javac.v8.Main.compile(Main.java:526)
at com.sun.tools.javac.Main.compile(Main.java:32)
at com.sun.tools.javac.Main.main(Main.java:23)
Normal Termination
Output completed (1 sec consumed).
---
4)
--
5) My file was called TextFieldTester.java instead of TextFieldLimiter.java
Release Regression From : 1.3.1
The above release value was the last known release where this
bug was known to work. Since then there has been a regression.
(Review ID: 136028)
======================================================================