Details
-
Bug
-
Resolution: Cannot Reproduce
-
P3
-
None
-
6u15
-
x86
-
windows_xp
Description
FULL PRODUCT VERSION :
java version "1.6.0_15"
Java(TM) SE Runtime Environment (build 1.6.0_15-b03)
Java HotSpot(TM) Client VM (build 14.1-b02, mixed mode, sharing)
ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows XP [Version 5.1.2600]
EXTRA RELEVANT SYSTEM CONFIGURATION :
Internet Explorer 7.0.5730.11
Also reproduced on windows vista with ie7
A DESCRIPTION OF THE PROBLEM :
This bug is in Internet explorer only. Not Mozilla firefox 3.5
I have an applet that uses URLConnection to load data from a webserver. (URLConnection uses HttpURLConnection). It also uses showDocument from Applet context to move to new URL's that also contain applets. When I call showDocument it regularly happens that the new page loads, and the applet part only shows the loading animation. A trace reveals that the program is hung on getting a proxy:
"AWT-EventQueue-3" prio=4 tid=0x02a73800 nid=0x284 in Object.wait() [0x041df000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
at sun.plugin2.message.Queue.waitForMessage(Unknown Source)
- locked <0x230a1ae8> (a sun.plugin2.message.Queue)
at sun.plugin2.message.Pipe.receive(Unknown Source)
at sun.plugin2.main.client.MessagePassingExecutionContext.getProxyList(Unknown Source)
at sun.plugin2.main.client.PluginProxySelector.select(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
<snip>
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Create an applet that in the init method code loads something of the web with URLConnection and make a button that when pressed, loads its own html page again
EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Open a new html page with working applet
ACTUAL -
Opens a new Html page with an applet that is waiting for something indefinately
ERROR MESSAGES/STACK TRACES THAT OCCUR :
No crash
REPRODUCIBILITY :
This bug can be reproduced often.
---------- BEGIN SOURCE ----------
==applet code==
package viers.gui;
import java.awt.BorderLayout;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;
import javax.swing.JPanel;
import javax.swing.JApplet;
import javax.swing.JButton;
public class HangTest extends JApplet {
private static final long serialVersionUID = 1L;
private JPanel jContentPane = null;
private JButton move = null;
public void init() {
try {
javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
public void run() {
loadDoc();
setContentPane(getJContentPane());
}
});
} catch (Exception e) {
System.err.println("createGUI didn't successfully complete");
}
}
private void loadDoc(){
try {
URL url = new URL("http://www.google.nl");
URLConnection con = url.openConnection();
InputStream is = con.getInputStream();
try{
} finally {
is.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
private JPanel getJContentPane() {
if (jContentPane == null) {
jContentPane = new JPanel();
jContentPane.setLayout(new BorderLayout());
jContentPane.add(getMove(), BorderLayout.CENTER);
}
return jContentPane;
}
private JButton getMove() {
if (move == null) {
move = new JButton();
move.setText("test");
move.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent e) {
getAppletContext().showDocument(getDocumentBase());
}
});
}
return move;
}
}
==html code==
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>HangTest</title>
</head>
<body>
<div style='height: 600px; width: 100%; margin:0; padding:0; border:0'>
<applet code='viers.gui.HangTest.class' archive='documents.jar' width='100%' height='100%'>
</applet>
</div>
</body>
</html>
---------- END SOURCE ----------
CUSTOMER SUBMITTED WORKAROUND :
Disable plugin 2 and use classic plugin.
java version "1.6.0_15"
Java(TM) SE Runtime Environment (build 1.6.0_15-b03)
Java HotSpot(TM) Client VM (build 14.1-b02, mixed mode, sharing)
ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows XP [Version 5.1.2600]
EXTRA RELEVANT SYSTEM CONFIGURATION :
Internet Explorer 7.0.5730.11
Also reproduced on windows vista with ie7
A DESCRIPTION OF THE PROBLEM :
This bug is in Internet explorer only. Not Mozilla firefox 3.5
I have an applet that uses URLConnection to load data from a webserver. (URLConnection uses HttpURLConnection). It also uses showDocument from Applet context to move to new URL's that also contain applets. When I call showDocument it regularly happens that the new page loads, and the applet part only shows the loading animation. A trace reveals that the program is hung on getting a proxy:
"AWT-EventQueue-3" prio=4 tid=0x02a73800 nid=0x284 in Object.wait() [0x041df000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
at sun.plugin2.message.Queue.waitForMessage(Unknown Source)
- locked <0x230a1ae8> (a sun.plugin2.message.Queue)
at sun.plugin2.message.Pipe.receive(Unknown Source)
at sun.plugin2.main.client.MessagePassingExecutionContext.getProxyList(Unknown Source)
at sun.plugin2.main.client.PluginProxySelector.select(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
<snip>
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Create an applet that in the init method code loads something of the web with URLConnection and make a button that when pressed, loads its own html page again
EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Open a new html page with working applet
ACTUAL -
Opens a new Html page with an applet that is waiting for something indefinately
ERROR MESSAGES/STACK TRACES THAT OCCUR :
No crash
REPRODUCIBILITY :
This bug can be reproduced often.
---------- BEGIN SOURCE ----------
==applet code==
package viers.gui;
import java.awt.BorderLayout;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;
import javax.swing.JPanel;
import javax.swing.JApplet;
import javax.swing.JButton;
public class HangTest extends JApplet {
private static final long serialVersionUID = 1L;
private JPanel jContentPane = null;
private JButton move = null;
public void init() {
try {
javax.swing.SwingUtilities.invokeAndWait(new Runnable() {
public void run() {
loadDoc();
setContentPane(getJContentPane());
}
});
} catch (Exception e) {
System.err.println("createGUI didn't successfully complete");
}
}
private void loadDoc(){
try {
URL url = new URL("http://www.google.nl");
URLConnection con = url.openConnection();
InputStream is = con.getInputStream();
try{
} finally {
is.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
private JPanel getJContentPane() {
if (jContentPane == null) {
jContentPane = new JPanel();
jContentPane.setLayout(new BorderLayout());
jContentPane.add(getMove(), BorderLayout.CENTER);
}
return jContentPane;
}
private JButton getMove() {
if (move == null) {
move = new JButton();
move.setText("test");
move.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent e) {
getAppletContext().showDocument(getDocumentBase());
}
});
}
return move;
}
}
==html code==
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>HangTest</title>
</head>
<body>
<div style='height: 600px; width: 100%; margin:0; padding:0; border:0'>
<applet code='viers.gui.HangTest.class' archive='documents.jar' width='100%' height='100%'>
</applet>
</div>
</body>
</html>
---------- END SOURCE ----------
CUSTOMER SUBMITTED WORKAROUND :
Disable plugin 2 and use classic plugin.