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Duplicate :
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Name: gm110360 Date: 05/31/2002
FULL PRODUCT VERSION :
java version "1.4.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-b92)
Java HotSpot(TM) Client VM (build 1.4.0-b92, mixed mode)
FULL OPERATING SYSTEM VERSION :
Microsoft Windows 2000 [Version 5.00.2195]
A DESCRIPTION OF THE PROBLEM :
Problem occurs when using the setText method of
JEditorPane, and providing a string containing the source
of an html page. If the string contains a meta tag which
sets the content-type, the page will not display.
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. Change in the source "url to test page" to actual URL's
of the test pages.
This is the source for a working test:
<html>
<head>
<title>Test</title>
</head>
<body>
<h1>This is a test</h1>
</body>
</html>
3. run the code. It will display "This is a test"
4. By adding the meta line change the code to this:
<html>
<head>
<title>Test</title>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html">
</head>
<body>
<h1>This is a test</h1>
</body>
</html>
5. Run again. Nothing will be shown.
EXPECTED VERSUS ACTUAL BEHAVIOR :
Without the offending meta tag the page will show. If the
content-type is removed from the meta tag it will still
show.
However, if a meta tag which sets the content-type is
given, nothing will be shown in the JEditorPane.
This bug can be reproduced always.
---------- BEGIN SOURCE ----------
import java.awt.*;
import javax.swing.*;
import java.net.*;
import java.io.*;
public class TestFrame extends JFrame {
BorderLayout borderLayout1 = new BorderLayout();
JScrollPane jScrollPane1 = new JScrollPane();
JEditorPane jEditorPane1 = new JEditorPane();
public TestFrame() {
setSize(500, 400);
setVisible(true);
try {
jbInit();
}
catch(Exception e) {
e.printStackTrace();
}
this.validate();
try
{
URL url = new URL("url to test page");
InputStream is = url.openStream();
BufferedReader br = new BufferedReader(new InputStreamReader(is));
String line;
StringBuffer page = new StringBuffer();
while ((line = br.readLine()) != null)
{
page.append(line);
page.append('\n');
}
br.close();
System.out.println(page.toString());
jEditorPane1.setContentType("text/html");
jEditorPane1.setText(page.toString());
}
catch (Exception e)
{
e.printStackTrace();
}
}
public static void main(String[] args) {
TestFrame testFrame = new TestFrame();
}
private void jbInit() throws Exception {
this.getContentPane().setLayout(borderLayout1);
this.setDefaultCloseOperation(3);
jEditorPane1.setText("jEditorPane1");
this.getContentPane().add(jScrollPane1, BorderLayout.CENTER);
jScrollPane1.getViewport().add(jEditorPane1, null);
jEditorPane1.setEditable(false);
}
}
---------- END SOURCE ----------
CUSTOMER WORKAROUND :
Filter out the meta tag!
(Review ID: 145369)
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