Java console from IE

I enable the Java Console in the "Internet Options" from my IE Browser. And i can see it in my View Option. But when click on the option, it doesn't show up! Could u tell me why?
Thanks,
Bick

Should do. You may need to restart your computer after setting the option.

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Printing to java console from servlets

Hi
i would like to use the java console on the browser to display some debugging output from my servlets.
using "System.out.println" would output to the server logs.
is there any way to do this??
-Eli-

I know that there is a Jakarta TLD that does this, it's one of the Tomcat4.0.1 examples.
<%@ taglib uri="http://java.apache.org/tomcat/examples-taglib" prefix="eg" %>
<eg:log>
Did you see me on the stderr window?
</eg:log>
<eg:log toBrowser="true">
Did you see me on the browser window as well?
</eg:log>Any visitor hitting the web site will not see the <eg:log> tags, however with the toBrowser="true" they will as well as you should see them on the console. Double check the TLDs on jakarta.apache.org to see what you can find. If you are using another Java Servlet container it's probably just a matter of changing a class file for the same functionality.

I cannot bring up the Java console from IE in WindowsXp

Hi Team,
My System contains Windows Xp as a operating System.
My IE is unable to dispaly the applet's.Although my IE tells me that I have JRE running (under IE / Tools / Internet Options / Advanced), I cannot bring up the Java console also.
I Checked in Control Panel/Java/show-console is activated. But i am unable to bring up the java console.
Thanks
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I got the solution. Now my application is runnig successfuly.
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Is it possible to open the Java plugin / WebStart Console from my app ?

Hi,
I would like to know if it is possible to add a menuitem to my application that would start the Java plugin/web start console.
That would be nice when people have errors in my application.
Martin

Thanks for the information, but is there a way to do it without using exec methods ?
I just want to bring up the Java Console from my app, in the more portable way possible ;-)
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How many versions of java console do I need in extensions?

In extensions I have java consoles from 6.0.11 to 6.0.24. Can I remove the old old ones? Mike

You do not need any of them. They are not needed to run Java applets.
See:
* http://kb.mozillazine.org/Java#Multiple_Java_Console_extensions

Sun Java Console & Applets don't display properly on JRE 1.5.0_05

Duplicate Post as it was equally relavant to this forum: [http://forum.java.sun.com/thread.jspa?threadID=666689&tstart=0 ]
Hi,
We have a signed applet based application hosted on weblogic server. We are trying to launch the application on IE 6.0, JRE 1.5.0_05.
When we try to see the Sun Java Console from IE's Tools Menu bar, we don't see any text in the window and also the side bars & buttons ("clear", 'copy", "close") are not rendered properly. Now if we, try to bring the focus to text area of Sun Java Console, and try to select all (Ctrl+A), we only see some text selected, but not what it is. Now if we copy the text onto the notepad, we can see the text.
Next, when we try to launch the signed applet based application, we get the security warning, where only we can see the dialogue box and not the text or buttons. By randomly clicking on this security dialogue, if we hit on yes, the Applet based application is launched. The UI is totally off color; either you see some widgets on application partially or totally blackened or in different colors. Application basically looks to be in chaos.
This behavior is not observed in any of the previous JRE versions, i.e. JRE 1.5.0_04 or any previous versions. Interesting part is after uninstalling JRE 1.5.0_05, if we install 1.5.0_04; problem persists, but not in JRE 1.4.
We have observed the same behavior on number of machines. Is it a known issue? What�s the reason & solution?
Thanks in Advance,
Vinayak

When we try to see the Sun Java Console from IE's
Tools Menu bar, we don't see any text in the window
and also the side bars & buttons ("clear", 'copy",
"close") are not rendered properly. I suspect you're running into graphics issues. Perhaps java5 is trying to optimize too much, and you have older or buggy Windows drivers.
Try:
* getting the latest graphics drivers for your hardware from your vendor and installing them.
If that doesn't work, try
* putting options like "-Dsun.java2d.noddraw" in the Java Control Panel as the default VM options for your Java.
That's actually a bit aggressive - you can start with, say, "-Dsun.java2d.d3d=false" or "-Dsun.java2d.ddoffscreen=false" (each of these is less drastic than noddraw).
Then make sure you quit all IEs, and restart one.

Firefox 4 on Windows Vista loads java applet for my MOO site then immediately closes Java Console, dumping me from the site, so I have had to go back to Firefox 3.6.17 which works fine

I have 32-bit Vista Business, with Firefox as my default browser. I recently upgraded to Firefox 4 and found that I can no longer access my VRoma MOO, which uses a Java applet to connect. I can connect to the site, but within 30 seconds the Java Console closes by itself (without my having done anything) and dumps me from the MOO. Following suggestions on this website, I uninstalled two earlier versions of Java which were on my computer and downloaded Java 6.0.25, the latest version. I also disabled previous Java Console extensions in the browser. None of this helped. I can stay connected with IE, and I can stay connected with Firefox 3.6.17, which I have had to install again. This is disturbing, because VRoma has many student users and I don't want them to encounter this problem if they are using Firefox 4.

Hello Andrew.
You may be having a problem with some Firefox add-on that is hindering your Firefox's normal behavior. Have you tried disabling all add-ons (just to check), to see if Firefox goes back to normal?
Whenever you have a problem with Firefox, whatever it is, you should make sure it's not coming from one of your installed add-ons, be it an extension, a theme or a plugin. To do that easily and cleanly, run Firefox in [http://support.mozilla.com/en-US/kb/Safe+Mode safe mode] and select ''Disable all add-ons''. If the problem disappears, you know it's from an add-on. Disable them all in normal mode, and enable them one at a time until you find the source of the problem. See [http://support.mozilla.com/en-US/kb/Troubleshooting+extensions+and+themes this article] for information about troubleshooting extensions and theme. You can troubleshoot plugins the same way.
If you want support for one of your add-ons, you'll need to contact its author.

Java applets won't load, have latest version of java installed, have removed all old versions from the hard drive, java console not working in firefox, any suggestions please ?

java applets will not load,
i have run the java test page & i have the latest version installed.
have removed all old versions of java from my hard drive & restarted the computer.
i have checked that java is enabled in the plug-ins and it is with version se 6 u22, also something called java development toolkit 6.0.220.4 np runtime script plug-in library for java (tm) deploy.
if i click on java console in tolls nothing happens

Hi,
You might want to look in your control panel for 'Java' icon. It should give you an option to enable java plugin into your browser. Let me know if you still face the issue.
Thanks!

Java console doesn't launch when starting Java Web Start app from Firefox

Updated my Linux desktop from RHEL to Fedora 12 with resultant upgrade of Firefox to 3.5.9 and now when I launch our Java Web Start application, no Java console appears. The Java Control Panel still shows "Show Console" as set. My app uses Java 1.5 which I have installed on my desktop.
What do I do to properly configure my browser/desktop to support use of the Java console?
Please help, I need to debug our app!
Ilane

IlaneMarie wrote:
..Please help, I need to debug our app!Cannot tell you the answer to your FF hassles (because I have no idea why you're seeing that behaviour(1)), but note that you might be able side-step FF by launching a JWS app. using the javaws tool directly from the command line or an Ant build file.
1) Though you might try rebooting the machine if any installation/configuration changes have occurred since last boot.
Also note that many problems with JWS apps. can be sorted be checking the JNLP using JaNeLA.

Java console doesn't open from Firefox 3 with jre 6u10

OS: XP SP3
JRE: 1.6.0_10-b33
Browser: Firefox 3.0.3
Confirmed on a new profile, when Tools->Java Console is clicked, no console and the menu item becomes disabled

Thanks for reporting the issue.
In 6u10, the New Java Plug-In design has detached itself from a browser process which provides a more robust and enhanced experience. Developers can launch and configure their VM settings through an Applet. As a result, there is very little association between a browser process and Java runtime environment running Applets. In addition, with the new capabilities of the New Java Plug-In, there are more chances multiple VMs are launched within a web page. Therefore, it is no longer useful to launch Java Console via the browser menu as that will cause more confusion.
See
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6644623 &
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6632149
for more info.
I have submitted a bug reoprt, however. Thanks to your report, I realize the behavior on XP and Vista is different. XP does not open JC, but Vista does open JC. I have submitted a bug for this issue. http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6760484
Thanks,
RY

Java console not accessible, will not load from FFx tools dropdown menu (had same prob with 3.6.15). Latest Java installed and IS accessible thru control panel

XP OS, have NoScript installed, disabled, Java console still will not load from FFx.

I followed your instructions and installed Developer Suite 10G on Windows Vista Home Premium edition. I have Oracle 11G DB running on the same machine.
Two points, Steve:
1. When I tried to set the maximum virtual memory to 6110 an error message displayed from Windows and told me that I can't set the maximum virtual memory to more than 4096. I set it to 4090 and it worked and I got nothing wrong during the installation process.
2. After installing JInitiator and disabling Java on Firefox I called the http://127.0.0.1:8889/forms/frmservlet page and everything seemed to be OK because the Oracle Forms Services logo appeared and then a successful installation message appeared , but as I clicked (ok) to continue a gray screen appeared inside the browser (like the one displayed when you try to run a Java applet inside a browser) and then I wait to death till something appears but sadly nothing. I just get a blank gray screen inside my Firefox browser.
Do you have any idea what to do to solve the problem?
Regards

In my Add-ons list I see Java Console with every version from 6.0.03 to 6.0.21. Why so many?

When FireFox notifies me to update an add-on I usually do as I am told. Java Console comes up with updates so I update it. With other add-ons the item in the add-on list is changed giving its version number but with Java Console the list simply grows with yet another Java Console listed.
It's not a problem, I suppose, but I wonder why it works this way and if it should.

You can uninstall (remove) the Java Console extensions and disable the Java Quick Starter extension, you do not need them to run Java applets.
See http://kb.mozillazine.org/Java#Multiple_Java_Console_extensions
Disable the Java Quick Starter extension: Tools -> Add-ons -> Extensions
* Control Panel -> Java -> Advanced tab -> Miscellaneous -> Java Quick Starter (disable)
See http://www.java.com/en/download/help/quickstarter.xml - What is Java Quick Starter (JQS)? What is the benefit of running JQS? - 6.0

Java Web Start 1.6 fails to start application without Java Consol on Vista

Hi All,
I've faced with problem related to starting my application in IE 7 on Vista SP1 using Java Web Start (JRE 1.6.0_12 and 1.6.0_13). I suppose that issue appears after 11th update of JRE 1.6 since it works fine before.
There were set settings to indicate initial and maximal size of the Java heap in the JNLP file.
Application consist of 2 JAR files and they are signed with the same certificate.
When user tried to start application there is no any activity after accepting certificate. After starting application javaw.exe just disappeared from processes list without any message or error.
When I changed default setting in Java Control Panel to show Java Console, I noticed that the application began to start. But it's not a solution of the issue, since all customers cannot be required to turn on Java console.
I believe this is a bug in JRE as the application starts with Java console and doesn't without it.
When I browsed the web looking for the solution or an advice I found Release notes for 1.6.0_014 where it was said that 6u14 Java Web Start failed to launch and notifies that JARs were not signed, if an insecure Java system property was specified in a sandbox JNLP file. In spite of that 14th updated wasn't used and there was no notification I tried to start application without settings for the Java heap and it worked.
Could someone help me with advice, since the application cannot be started with default heap size settings.
Thanks in advance.
Edited by: vovanst on Jul 28, 2009 8:06 AM

Hi,
as the 6u15 just arrived and the above mentioned bug should've been fixed (though I was unable to verify through the release notes), the error is still in there.
We have no timestamped jars, neither ours nor the bouncy castle ones, all certs are valid, ours is self signed.
6u13 runs, 6u14/6u15 won't.
I followed the instructions here: http://bouncycastle.org/devmailarchive/msg10415.html to no avail.
The bcprov.jar is wrapped in its own jnlp and referred as extension from the "main" jnlp.
The interesting parts of the stack trace are these:
Caused by (via getCause): java.lang.SecurityException: JCE cannot authenticate the provider BC
     at javax.crypto.Cipher.getInstance(DashoA13*..)
     at javax.crypto.Cipher.getInstance(DashoA13*..)
Caused by (via getCause): java.util.jar.JarException: Cannot parse https://localhost:8443/deploy/bcprov.jar
     at javax.crypto.SunJCE_c.a(DashoA13*..)
     at javax.crypto.SunJCE_b.b(DashoA13*..)
     at javax.crypto.SunJCE_b.a(DashoA13*..)
     at javax.crypto.Cipher.getInstance(DashoA13*..)
     at javax.crypto.Cipher.getInstance(DashoA13*..)
For me it seems there's a problem with resolving the url of the bcprov.jar, which would explain the lack of a delay which normally occurs when JCE verifies the signature of the bcprov provider classes. The error pops up almost instantly.
I'm clueless what to do now. Did Sun really achieve to completely destroy JCE provider functionality in Javaws, forcing us to use an alternative implementation?
Patric

Online media player won't display nor will formatting buttons in forum since Java console extension is no longer supported.

Yesterday the following message appeared in my browser (Firefox 3.6.13):
"The Java Console extension is no longer supported and will be automatically removed the next time you restart Firefox. This will not affect any Java applications or websites in any way."
After receiving this message, the formatting buttons in the reply boxes of this SMF forum would not display.
http://www.thechristianidentityforum.net/smf/
And when I clicked on the "Listen Live" link at the site below, I got a "Cannot create DirectShow player" error message.
http://www.3aw.com.au/
How do I fix this?
Many thanks in advance for your help.

Clear the cache and the cookies from sites that cause problems.
* "Clear the Cache": Tools > Options > Advanced > Network > Offline Storage (Cache): "Clear Now"
* "Remove the Cookies" from sites causing problems: Tools > Options > Privacy > Cookies: "Show Cookies"
Start Firefox in [[Safe Mode]] to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
* Don't make any changes on the Safe mode start window.
See:
* [[Troubleshooting extensions and themes]]

SOLVED VISTA JAVA 1.6.X 1.6.15 BROKEN JAVA CONSOLE IE8/FIREFOX HANGS

I recently inherited a problem where JAVA was broken on Vista Home Premium whenever you hit the java test page
www.*java*.com/en/download/help/*test*vm.xml*
the browser for both IE8 and FireFox 3.5.2 would just hang which required a forced kill, trying to start the java console through the vista control pannel, for the latest build just failed 1.6.15.
Trying to reinstall JAVA just failed, trying to downgrade JAVA failed trying other possible incompatibilities upgrading to vista SP2 had no effect.
Searching the web I found a number of hints then hit on what was the issue in that there was not one thing wrong but the JAVA install was broken in a number of places and so the problem was multi dimensional. The first task was figuring this out then gluing the pieces together
*If your control panel for JAVA when clicked on barfs a warning ending with "{color:#ff0000}*com.sun.deploy.panel.ControlPanel"{color}* you need to fix this so you can easily access the JAVA configuration parameters
1) First get the java console working put the following code into a file called in mycase javaconsole.bat amend it to suit your version/location of the javaw.exe file
cd C:\"Program Files"\Java\jre6\bin javaw.exe
{color:#0000ff} .\javaw -Xbootclasspath/a:..\lib\deploy.jar -Duser.home="%HOMEDRIVE%%HOMEPATH%" -Dsun.java2d.noddraw=true com.sun.deploy.panel.ControlPanel{color}
This was based of the following thread, whats in blue is a single line
http://forums.sun.com/thread.jspa?threadID=5372196
2) Create short-cut, put this on you desk top double click and say yes to whatever UAC security issue Vista pop's up and console now comes up. The vista control panel icon will remain broken hence the batch script hack to access it
3) Next piece is the java settings controlling the network, should java read the proxy settings from the browser itself FireFox/IE8. This needs to be set to {color:#ff0000}*direct*{color} if using a home network, that has no proxy infrastructure. This information was based of this following thread
http://forums.sun.com/thread.jspa?threadID=5367053
PS IE8 no longer has the JAVA enabled as option in it's own advanced section
4) The above thread has the solution solved at the end as the :-
"It was the default setting for the 'Network Proxy Settings' in the java control panel.
The default setting 'Use browser settings' did not work for us.
We changed it to 'Direct Connection' and now java works correctly."
{color:#ff0000}*HOWEVER READ ALL THE ABOVE THREAD AND IT MENTIONS "the next-gen plugin."*{color}
This is the last key in the puzzle as now you have the control panel working through the batch script also {color:#0000ff}*DISABLE the "Java Pluggin enabled the next generation Java Plug-in" under the security advanced tab*
You will now have a working system for VISTA JAVA
{color}
Edited by: rmccorkl on Aug 23, 2009 11:25 AM

jre 1.6.0_10 beta installtion fixes this problem!

Java console from IE

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