Applet Window Event Response

Hi
I've just installed Java JDK 1.6.0_13 (JRE included). Then I launch an applet using either Internet Explorer 7 or Mozilla Firefox 3.0.7, everything is fine until I click on the applet resize, hide or close button, then everything freeze (event the mouse) for almost 7 seconds (sometimes more), then the window close or hide dependending on the button clicked. What could the cause of that ?
Any suggestions ?
Thanks a lot

Hi,
Can you give some more details regarding this behavior.
1. Was this visible on versions prior to JDK 6.0 Update 13
2. Can you provide us with a details where we can access this application to reproduce this problem / if you have a test case this will help.
Thanks,
Nelson

Similar Messages

Need to detect window event for applet

I have an applet that needs to communicate with a servlet telling the servlet to logout once the parent window (web browser) is closed. I am new to programming with GUI's involved so I apologize for any ignorance. I have been searching for an answer on solving this problem for a while and have so far been able to write a simple applet that sends a message back to the servlet once the browser is closed by implementing the stop() function -- however it sends the same message when the back button is pressed. I need to message to be sent only when the browser is closed out.

Applets aside, there is no way to tell the server
when the remote user closes their browser. That’s
just one of the pits falls of web applications.
Now, in your applet, if it's possible to catch some
sort of window closing event when the browser closes
(and keep in mind I don't know if this is even
possible) then in the applets closing event you may
be able to use a URL object to post to your Servlet.That is what I was hoping to achieve -- I had defined my own stop() method which sent out a logout request to the servlet using the URL object... but it gets called every time a new page is requested. I also tried doing this in the destroy() method after reading that stop() should be called whenever a new page is requested to pause execution and that destroy() should be called when the object is reclaimed. This does not work how I expected in IE as it gets called each time a new page is requested -- must be destroyed and recreated every time.
In the URL you can pass some type of ID that uniquely
identifies your user. When the Servlet receives the
request from the applet you can parse out the ID from
the request and invalidate the users session,
essentially logging them out.I don't have to worry about a unique ID as this servlet only serves a single user at a time -- on first connection it locks the servlet and will report to other users that it is busy.
One other possible solution that I just found is the
following:
<script language="javascript">
window.onbeforeunload = function (evt) {
var message = 'Are you sure you want to leave?';
if (typeof evt == 'undefined') {
evt = window.event;
if (evt) {
evt.returnValue = message;
return message;
</script>This JavaScript function catches the window closing
event. From this function you would have to use the
JavaScript XMLHttpRequest object to send an
asynchronous request to your servlet (read up on
AJAX). Again, in the request you would need to pass
your ID to uniquely identify the user that you want
to log out.I will have to look at this -- although I want to do this in an applet that does not mean that would be the only solution that exists.
Either way it’s not going to be simple. Cheers.
-S

Java Applet Window Warning - Appearing through

Hello
The warning that is displayed on applet windows now when using java is causing a problem.
When you bring a fresh web page or word document over the top of the applet window, the java applet warning is still visible as if it has been brought to the front layer. but the rest of the applet is behind the new active window.
Really weird.
Ben.

Our team is also using a signed applet and are having trouble with popup items not being accessible outside of the JFrame.
In appletviewer the popup (JXDatePicker) is fully accessible. If running in Internet Explorer on Windows 2000 the portion of the popup outside of the JFrame paints correctly but cannot receive click events correctly.
It would be preferrable that if the popup cannot receive events outside of the applet frame that the popup would be smart enough to pop itself fully in the applet frame.
Any suggestions?
Thank you.

Java Applet Window showing on signed applet popups

I have an applet deployed that is signed, but I'm experiencing a very annoying problem with JPopup windows that cross outside the border of the JFrame created by the Applet.
Those pop-up windows still show the warning at the bottom "Java Applet Window". That part is pretty annoying and I don't understand why it's doing that since they are coming from a signed, trusted applet.
Just to be clear, any of the JPopups or JDialogs or anything else we display inside the frame doesn't have this warning since we signed the applet.

Our team is also using a signed applet and are having trouble with popup items not being accessible outside of the JFrame.
In appletviewer the popup (JXDatePicker) is fully accessible. If running in Internet Explorer on Windows 2000 the portion of the popup outside of the JFrame paints correctly but cannot receive click events correctly.
It would be preferrable that if the popup cannot receive events outside of the applet frame that the popup would be smart enough to pop itself fully in the applet frame.
Any suggestions?
Thank you.

JComboBox shows "Java Applet Window" as last element

Hey all,
I am having a problem with using JComboBox. When I use JComboBox and show it in a JDialog (popup window), the last element of the drop down (JComboBox) is "Java Applet Window". This element is, however, not selectable. I want to get rid fo the "Java Applet Window" in my dropdown.
This problem only happens when my applet opens up a JDialog that has the JComboBox, but does not happen when I add the JComboBox directly to the applet.
I've read around in other forums that this has to do with security. I understand the need to show that a popup window (JDialog) is an applet window so the user doesn't mistake it as one of the native windows. But, the JComboBox is not a whole 'nother window, so why does it feel the needs to add that last line to designate it as a "Java Applet Window?"
Thanks.
Nina.

My apologies, I did not clarify myself in my question. Sorry that I created misunderstandings of the problem - as evident in the response in the previous post from himanshug.
I am using JDK 1.3.1
I must use an applet, but all my components are standalone. They can be ran as a standalone application. But for deployment, we are using applets. It's easier to do applets so clients can access via browser than deploy a whole application installation on 50 machines halfway across the world.
And no, there is no element in my list that says "Java Applet Window". When running my application standalone, the "Java Applet Window" does not appear as the last element in my drop down.
The "Java Applet Window" also does NOT appear when I add the drop down directly to the applet. It only appears when the drop down is in a JDialog that gets launched by an applet.
My problem: How to get rid of the "Java Applet Window" as it seems something is adding this to my dropdown. And it's not my code that is adding it.
Thanks. I am also up'ing the duke dollars for a solution to this to 15.

Urgent: "The Metric Windows Event Severity" Is Not Raising Any Alert

Hi, All,
The version for OMS server & agent in my env is 10.2.0.4. We need to monitor a windows host as well as its windows event log. So I set the metric for 'Windows event severity' as log name='System', Warning threadhold='Warning', Critical threahold='Error'. But there is no any alert raised at all. I am sure there are 'Warning' and 'Error' event log in the windows host.
Does any body meet the same problems? I found a doc 561050.1 which metioned the same issue and it told me I should patch 6752515. But it still does not work.
Thanks in advance for any advice.
Best Regards,
Sharon.Ni

kmaule,
It appears that in the past few days you have not received a response to your
posting. That concerns us, and has triggered this automated reply.
Has your problem been resolved? If not, you might try one of the following options:
- Visit http://support.novell.com and search the knowledgebase and/or check all
the other self support options and support programs available.
- You could also try posting your message again. Make sure it is posted in the
correct newsgroup. (http://forums.novell.com)
Be sure to read the forum FAQ about what to expect in the way of responses:
http://forums.novell.com/faq.php
If this is a reply to a duplicate posting, please ignore and accept our apologies
and rest assured we will issue a stern reprimand to our posting bot.
Good luck!
Your Novell Product Support Forums Team
http://support.novell.com/forums/

How to catch window event on jApplet

Could you please let me know, How to catch �activate window� event on Japplet page. I am using the following class.
public class CtApplet
      extends JApplet
      implements Runnable, ErrorHandlerI could implement the same on Jframe by using the following Api�s. I assume they don�t exist on Japplet.
this.addWindowListener (��.);
class ��
      extends java.awt.event.WindowAdapter
    public void windowActivated (WindowEvent e)
        ��..
}Edited by: samtek on Oct 30, 2007 7:59 PM
I extened my japplet class from WindowListener, and added function, windowActivated(), But not able to catch the event.

Hi,
I would try AWTEventListener; it should work with a JFrame.
Now I probably could have done this better but I made 2 classes for this.
HyperFrame to run the applet as an Application and have the Frame handle
the AWT events, and AWTEventManager to process the Events when running as an Applet. In the future I will probably merge into 1 AWTEventManager.
https://hyperview.dev.java.net/source/browse/hyperview/www/HyperView299/AWTEventManager.java?rev=1.3&view=markup
https://hyperview.dev.java.net/source/browse/hyperview/www/HyperView299/HyperFrame.java?rev=1.11&view=markup
Anyway, omit the View/List specific code and look at the setup; it should work for you. BTW Not ATM multi instance friendly but on my todo list several hundred down.
You will need to tweak the Thread control as well; probably AWTEventManager is the class to study as it really shows all you need to implement an AWTEventListener
Good Luck!
(T)

Catching/Using Windows Events

Hi,
Is there a way to use/catch windows events? What I mean is for example; while the java application window/frame is not selected I press the number key "1" on my windows/linux. Can I make my program to catch this as a key event?
Thanks for all help.... Regards...

Hi,
Thanks for response. Then can you give me any example
of a hardway :)No.
Or at least a link that is about.
Regards...It will involve writing native (C/C++) code and then using Java's Native Interface (JNI) to "talk" to your natively written code which is responsible for catching the events from Windows.
Google for JNI.
Like I said: not easy. This is because Java is not designed to be bound to one OS. Perhaps you should write your application in C#.

Lots of Anyconnect Error Message in Windows Event Log

Hi Community.
We have lots of Anyconnect Error Messages in the Windows Event Log. Following two examples.
Can anyone tell me why these errors appears and how do I fix them ? I already installed the newest Anyconnect on my machine.
Thanks in advance and Kind Regards Patrick
Example 1
<Provider Name="acvpnagent" />
<EventID Qualifiers="9216">2</EventID>
<Keywords>0x80000000000000</Keywords>
<EventRecordID>97564</EventRecordID>
<Channel>Cisco AnyConnect Secure Mobility Client</Channel>
- <EventData>
<Data>Function: CNetEnvironment::logProbeFailure File: .\NetEnvironment.cpp Line: 1432 Invoked Function: CHttpProbeAsync::SendProbe Return Code: -27066354 (0xFE63000E) Description: HTTP_PROBE_ASYNC_ERROR_CANNOT_CONNECT HTTP (host: 109.164.211.237)</Data>
</EventData>
Example 2
<Provider Name="acvpnagent" />
<EventID Qualifiers="9216">2</EventID>
<Keywords>0x80000000000000</Keywords>
<EventRecordID>97565</EventRecordID>
<Channel>Cisco AnyConnect Secure Mobility Client</Channel>
- <EventData>
<Data>Function: CNetEnvironment::TestAccessToSG File: .\NetEnvironment.cpp Line: 1385 Invoked Function: CNetEnvironment::analyzeHttpResponse Return Code: -28966899 (0xFE46000D) Description: NETENVIRONMENT_ERROR_PROBE_INCOMPLETE:Network Probe could not contact target</Data>
</EventData>

HI and welcome to Discussions,
in my personal opinion there is not much for you to worry about.
The 'Windows Tool for the elimination of malware' is nothing you miss as long as you have a decent Anti-Virus Software running.
The update for the IE 7 might be missing an installed IE 7, which can do by downloading it yourself from Microsofts webpage.
If you don't use the IE but something like Firefox or Opera or Safari, than don't bother with these update.
Stefan

How to write to windows event logs from determinations-server under IIS

This is just an FYI technical bit of information I wish someone had shared with me before I started trying to write OPA errors to the windows event log... Most problems writing to the windows event log from log4net occur because of permissions. Some problems are because determinations-server does not have permissions to create some registry entries. Some problems cannot be resolved unless specific registry entry permissions are actually changed. We had very little consistency with the needed changes across our servers, but some combination of the following would always get the logging to the windows event log working.
To see log4net errors as log4net attempts to utilize the windows event log, temporarily add the following to the web.config:
<appSettings>

<add key="log4net.Internal.Debug" value="true"/>
</appSettings>
<system.diagnostics>
<trace autoflush="true">
<listeners>
<add
name="textWriterTraceListener"
type="System.Diagnostics.TextWriterTraceListener"
initializeData="logs/InfoDSLog.txt" />
</listeners>
</trace>
</system.diagnostics>
To add an appender for the windows event viewer, try the following in the log4net.xml:
<appender name="EventLogAppender" type="log4net.Appender.EventLogAppender" >
<param name="ApplicationName" value="OPA" />
<param name="LogName" value="OPA" />
<param name="Threshold" value="all" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />
</layout>
<filter type="log4net.Filter.LevelRangeFilter">
<levelMin value="WARN" />
<levelMax value="FATAL" />
</filter>
</appender>
<root>
<level value="warn"/>
<appender-ref ref="EventLogAppender"/>
</root>
To put the OPA logs under the Application Event Log group, try this:
Create an event source under the Application event log in Registry Editor. To do this, follow these steps:
1.     Click Start, and then click Run.
2.     In the Open text box, type regedit.
3.     Locate the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Eventlog\Application
4.     Right-click the Application subkey, point to New, and then click Key.
5.     Type OPA for the key name.
6.     Close Registry Editor.
To put the OPA logs under a custom OPA Event Log group (as in the demo appender above), try this:
Create an event log in Registry Editor. To do this, follow these steps:
1.     Click Start, and then click Run.
2.     In the Open text box, type regedit.
3.     Locate the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Eventlog
4.     Right-click the eventlog subkey, point to New, and then click Key.
5.     Type OPA for the key name.
6.     Right-click the new OPA key and add a new DWORD called "MaxSize" and set it to "1400000" which is about 20 Meg in order to keep the log file from getting too large.
7.     The next steps either help or sometimes cause an error, but you can try these next few steps... If you get an error about a source already existing, then you can delete the key.
8.     Right-click the OPA subkey, point to New, and then click Key.
9.     Type OPA for the key name.
10.     Close Registry Editor.
You might need to change permissions so OPA can write to the event log in Registry Editor. If you get permission errors, try following these steps:
1.     Click Start, and then click Run.
2.     In the Open text box, type regedit.
3.     Locate the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Eventlog
4.     Right-click the EventLog key, select Permissions.
5.     In the dialog that pops up, click Add...
6.     Click Advanced...
7.     Click Locations... and select the current machine by name.
8.     Click Find Now
9.     Select both the Network user and IIS_IUSERS user and click OK and OK again. (We never did figure out which of those two users was the one that fixed our permission problem.)
10.     Change the Network user to have Full Control
11.     Click Apply and OK
To verify OPA Logging to the windows event logs from Determinations-Server:
Go to the IIS determinations-server application within Server Manager.
Under Manage Application -> Browse Application click the http link to pull up the local "Available Services" web page that show the wsdl endpoints.
Select the /determinations-server/server/soap.asmx?wsdl link
Go to the URL and remove the "?wsdl" from the end of the url and refresh. This will throw the following error into the logs:
ERROR Oracle.Determinations.Server.DSServlet [(null)] - Invalid get request: /determinations-server/server/soap.asmx
That error should show up in the windows event log, OR you can get a message explaining why security stopped you in "logs/InfoDSLog.txt" if you used the web.config settings from above.
http://msdn.microsoft.com/en-us/library/windows/desktop/aa363648(v=vs.85).aspx
Edited by: Paul Fowler on Feb 21, 2013 9:45 AM

Thanks for sharing this information Paul.

Window.event does not working in Firefox 4.0 and also window.event.ctrlKey ?

hi,
I'm using Microsoft virtual earth map 6.2 (bing Map) in my application.On map showing number of images.On Each image there is onClick event that select image if user press left mouse button while holding Ctrl key .For this I wrote java-script function where I'm using Window.event.button (To check mouse button) and window.event. ctrlKey(To check control key) But these both are not working in Firefox 4.0 ,the same is working in Firefox 3.6X version perfectly.
Thanks

The same problem is in Firefox 5.0 version too

I have updated my iTunes to the newest version, 10-25 on a windows XP system. Now my java virtual machine is not working and I need it to run applet window. My Java is also newest version. What can I do to fix/repair my issue?

I need help with java on windowsXP after updating iTunes to the latest version. My java will not work and I get error message need java virtual machine to run applet window. Did not have this problem prior to the iTunes update.
Please help, Thanks

If your library was working on your computer and then popped up empty all of a sudden then this might be what you need...
Empty/corrupt library after upgrade/crash
Hopefully it's not been too long since you last upgraded iTunes, in fact if you get an empty/incomplete library immediately after upgrading then with the following steps you shouldn't lose a thing or need to do any further housekeeping. In the Previous iTunes Libraries folder should be a number of dated iTunes Library files. Take the most recent of these and copy it into the iTunes folder. Rename iTunes Library.itl as iTunes Library (Corrupt).itl and then rename the restored file as iTunes Library.itl. Start iTunes. Should all be good, bar any recent additions to or deletions from your library.
See iTunes Folder Watch for a tool to catch up with any changes since the backup file was created.
When you get it all working make a backup!
tt2

Operations Manager Failed to Access the Windows Event Log and management server is showing warning state

Hi,
I am monitoring AD server from SCOM 2012 R2. My management server goes into waning state. When i run Health explorer then it come back in the healthy state but after some time it again goes into warning state. After seeing alert i found that a alert is coming
again and again i.e. Operations Manager Failed to Access the Windows Event Log.The description of alert is mention below
The Windows Event Log Provider is still unable to open the DhcpAdminEvents event log on computer 'nc2vws12ad5.corp.nathcorp.com'.
The Provider has been unable to open the DhcpAdminEvents event log for 64080 seconds.
Most recent error details: The RPC server is unavailable.
Please suggest me how to resolve this so that my management server will again come back in healthy state.
Thanks
Abhishek

Hi Abhishek,
As i mentioned earlier the Alert resolution says the same points.
Can you give details on the below ?
Is there really a log named "Dhcpadminevents" in the MS's Event viewer ?
Did you recently configure any new alert where you mentioned "Dhcpadminevents"
as a event log location ?
If yes then what is the target you selected for the rule / monitor there ?
Can you post the results for analysis ?
Gautam.75801

While Installation of 11g database creation time error ORA-28056: Writing audit records to Windows Event Log failed Error

Hi Friends,
OS = Windows XP 3
Database = Oracle 11g R2 32 bit
Processor= intel p4 2.86 Ghz
Ram = 2 gb
Virtual memory = 4gb
I was able to install the oracle 11g successfully, but during installation at the time of database creation I got the following error many times and I ignored it many times... but at 55% finally My installation was hanged nothing was happening after it.....
ORA-28056: Writing audit records to Windows Event Log failed Error and at 55% my Installation got hung,,,, I end the installation and tried to create the database afterward by DBCA but same thing happened....
Please some one help me out, as i need to install on the same machine .....
Thanks and Regards

AAP wrote:
Thanks Now I am able to Create a database , but with one error,
When I created a database using DBCA, at the last stage I got this error,
Database Configuration Assistant : Warning
Enterprise Manager Configuration Failed due to the Following error Listener is not up or database service is not registered with it. Start the listener & Registered database service & run EM Configuration Assistant again....
But when I checked the listener was up.....
Now what was the problem, I am able to connect and work through sqlplus,
But I didnt got the link of EM and when try to create a new connection in sql developer it is giving error ( Status : failure - Test Failed the Network Adapter could not establish the connection )
Thanks & Regards
Creation of the dbcontrol requires a connection via the listener. When configuring the dbcontrol as part of database creation, it appears that the dbcontrol creation step runs before the dynamic registration of the databsase with the listener is complete. Now that the database itself is completed and enough time (really, just a minute or two) has passed to allow the instance to register, use dbca or emca to create the dbcontrol.
Are you able to get a sqlplus connection via the listener (sqlplus scott/tiger@orcl)? That needs to be the first order of business.

Urgent help needed on writing errors in to windows events application logs

Hi all,
we have web based application. Whenever there is critical errors encounters in our application we need to write that errors in to windows
event viewer, application logs. Please help me on how to do this.
do we have any specific API for this ?
thanks in advance
Shivakumar

You should use WinAPI to do so. Asking in JNI forum (or specialized WinAPI forum) for more details is good idea I think.

Applet Window Event Response

Similar Messages

Maybe you are looking for