Forms 10.1.2.0.2 - Applet loading ... up to 1 min

We have an application developed with forms 10.1.2.0.2
When we load the application in explorer the login form appear in 4 or 5 sec.
But sometime (1 on 3) is necessary 45 sec / 1 min on a client connected near the application server.
The client cache 50 MB in not full (the jar present are not loaded every time).
At bottom of explorer client the application is stopped on this activity for all the time:
http://hostname.../forms/lservlet;jsession=...........
Thanks

If I remember correctly this has to do with the setup of your hostfile on the appserver. Please make sure that you have setup your hostfile according to documentation.

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Load: class oracle.forms.engine.Main not found Stuck at loading Java Applet

Hi there
I have recently installed App Server 10.1.2.0 on a new machine.
Copied all my forms to an appropriate directory. Set up formsweb.cfg to allow them to run and have attempted to run them.
Unfortunately I get stuck at the Loading Java Applet screen, and in the status bar at the bottom it says :
load: class oracle.forms.engine.Main not found
I have taken a look at the Java Console, and the 2 things that jump out at me are that it appears to be looking for a forms90 directory, which seems odd since I am using App Server 10.1.2.0.2 and Forms Builder 10.1.2.0.2 meaning it should be looking in a forms directory not forms90 directory shouldnt it ?
And also, it mentions class with no proxy, so on looking around the forums it has been suggested that put the proxy details into jinitiator, which I have done, but this has made no difference either.
Can anyone suggest anything else please ?
Java Console log follows.
Thanks a lot
Scott
Oracle JInitiator: Version 1.3.1.9
Using JRE version 1.3.1.9 Java HotSpot(TM) Client VM
User home directory = C:\Documents and Settings\hilliers
c: clear console window
f: finalize objects on finalization queue
g: garbage collect
h: display this help message
l: dump classloader list
m: print memory usage
q: hide console
s: dump system properties
t: dump thread list
x: clear classloader cache
0-5: set trace level to <n>
Unregistered modality listener
Removed trace listener: sun.plugin.ocx.ActiveXAppletViewer[oracle.forms.engine.Main,0,0,914x613,layout=java.awt.BorderLayout]
Sending events to applet. STOP
Sending events to applet. DESTROY
Sending events to applet. DISPOSE
Sending events to applet. QUIT
Finding information...
Releasing classloader: sun.plugin.ClassLoaderInfo@d9850, refcount=0
Caching classloader: sun.plugin.ClassLoaderInfo@d9850
Current classloader cache size: 1
Done...
Registered modality listener
Referencing classloader: sun.plugin.ClassLoaderInfo@d9850, refcount=1
Added trace listener: sun.plugin.ocx.ActiveXAppletViewer[oracle.forms.engine.Main,0,0,914x613,invalid,layout=java.awt.BorderLayout]
Sending events to applet. LOAD
Sending events to applet. INIT
Sending events to applet. START
Determine if the applet requests to install any HTML page
HTML Installation finished.
Opening http://appserver008/forms90/java/oracle/forms/engine/Main.class
Connecting http://appserver008/forms90/java/oracle/forms/engine/Main.class with no proxy
Opening http://appserver008/forms90/java/oracle/forms/engine/Main.class
Connecting http://appserver008/forms90/java/oracle/forms/engine/Main.class with no proxy
load: class oracle.forms.engine.Main not found.
java.lang.ClassNotFoundException: java.io.IOException: open HTTP connection failed.
     at sun.applet.AppletClassLoader.getBytes(Unknown Source)
     at sun.applet.AppletClassLoader.access$100(Unknown Source)
     at sun.applet.AppletClassLoader$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     at sun.applet.AppletClassLoader.findClass(Unknown Source)
     at sun.plugin.security.PluginClassLoader.findClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadCode(Unknown Source)
     at sun.applet.AppletPanel.createApplet(Unknown Source)
     at sun.plugin.AppletViewer.createApplet(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)

You're a star, thanks.
In my haste I had cut too much out of my old formsweb.cfg file and not realised I'd done it.
Thanks Francois.

Multiple instances of the same applet loaded causes problem

I have a java applet that has several classes in the project. The applet has a JTable a JButton and a JLabel control. The applet is displayed within an HTML page. The problem is that if a user opens the same html page more than once with the applet in it, only the last applet loaded receives the screen updates.
For example in one senario. I have an error message that displays in the Label control once they click on the button.
The user opens the html page and the applet is loaded (window 1). The user then opens the same html page again (window 2) with window 1 still open. If the user clicks on the Button in window 1, the error message is displayed in the window 2 applet.
Originally I had some static variables. Thinking it was being used globally by the JVM so I removed all of them and it still happens. I have tried using both the Applet and Object tag. But it still happens.
Has anyone experienced this before? Any suggestions on how to make the applet update the instance that recieved the events and not just the last one that was loaded?

You need to look at applet classloader issues. If applets have the same archive list and come from the same codebase, they have the same classloader. A class is namespaced by it's class + classloader. Any statics in a class with a classloader will be shared. If you instead make it such that your applets have unique classloaders (which you can't change for unsigned applets by yourself) by changing the codebase, that would be one solution.
For other solutions, I recommend searching the forum. This issue comes up a lot.

Java applet loading for a long time.

If you go here (warning - long load to start with) -
www.aclwebsite.co.uk
I have placed a newsticker java applet there but when you first visit the site the browser freezes up for a while untill the applet loads.
Any idea on whats causing this to load so much?
Thanks.

If you go here (warning - long load to start with) -
www.aclwebsite.co.uk
I have placed a newsticker java applet there but when
you first visit the site the browser freezes up for a
while untill the applet loads.
Any idea on whats causing this to load so much?
Thanks.A long-running init() or start() method of the applet. I guess you better do something about your own code then.

We are facing issue to open a static form PDF in Chrome Browser , which is loaded using Adobe FormService.Able to open in other browsers but not able to open the static forms in chrome with LC 11.0 version

We are facing issue to open a static form PDF in Chrome Browser
, which is loaded using Adobe FormService.
Able to open in other browsers but not able to open the static
forms in chrome with LC 11.0 version
Below error message:
The document you are trying to load
requires Adobe Reader 8 or higher. You may not have the Adobe Reader installed
or your viewing environment may not be properly configured to use Adobe Reader.
For information on how to install Adobe Reader and configure your viewing
environment please see http://www.adobe.com/go/pdf_forms_configure.
Please let us know do we have any option for disabling
<NoXFA/> tag by calling formService. RenderPDF() method on adobe service
For dynamic forms its working by adding <NOXFA/> in
DDX xml . only for static forms its not working because we are not using
assembler service for this forms.
Please let us know how we can disable XFA in static forms??????????????????

If anyone is reading this still looking for what caused the issue and how to fix it here is what I discovered.
The antivirus program our company uses, Bitdefender Antivirus Plus, was causing some of the PDF files not to open. After troubleshooting the different modules and settings the culprit was..
Scan SSL in Privacy Control Settings. Turning it OFF solved the problem and all the PDF files that previously would not open now open just fine. This issue has been sent to Bitdefender for them to review. If you use a different antivirus program and are having this issue try locating the Scan SSL setting and see if turning it off solves the problem.

Java 1.5_13 applet loading problem due to 'activate control' fix

I updated my JRE to Java 1.5 revision 13, and it seems to introduce a new problem. In order to fix the "click here to activate this control" problem in internet explorer, I iterate the document model and set the outerHTML of the applet tag to the same outerHTML. This removes the annoying rectangle in IE. This also causes the applet to load and break down the first time the page is displayed, because IE removes the old applet instance and creates a new one when replacing the outerHTML. When this happens on the new Java JRE release, an exception is thrown to the user saying:
java.lang.NullPointerException
     at sun.plugin.AppletViewer.loadJarFiles(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
The applet loads correctly, but the message should not be displayed. Also, it only seems to happen sometimes (maybee because sometimes the applet does not yet start before IE runs the script to replace its contents)
Full lifecyle from the console panel:
basic: Registered modality listener
basic: Registered modality listener
liveconnect: Invoking JS method: document
liveconnect: Invoking JS method: URL
basic: Referencing classloader: sun.plugin.ClassLoaderInfo@181fbd6, refcount=5
basic: Added progress listener: sun.plugin.util.GrayBoxPainter@982291
basic: Loading applet ...
basic: Initializing applet ...
basic: Starting applet ...
basic: Unregistered modality listener
basic: Stopping applet ...
basic: Removed progress listener: sun.plugin.util.GrayBoxPainter@982291
basic: Finding information ...
basic: Releasing classloader: sun.plugin.ClassLoaderInfo@181fbd6, refcount=4
basic: Done ...
basic: Joining applet thread ...
basic: Destroying applet ...
basic: Disposing applet ...
java.lang.NullPointerException
     at sun.plugin.AppletViewer.loadJarFiles(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
basic: Exception: java.lang.NullPointerException
java.lang.NullPointerException
     at sun.plugin.AppletViewer.loadJarFiles(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
basic: Joined applet thread ...
basic: Unregistered modality listener
basic: Quiting applet ...
basic: Registered modality listener
liveconnect: Invoking JS method: document
liveconnect: Invoking JS method: URL
basic: Referencing classloader: sun.plugin.ClassLoaderInfo@181fbd6, refcount=5
basic: Added progress listener: sun.plugin.util.GrayBoxPainter@1347dad
basic: Loading applet ...
basic: Initializing applet ...
basic: Starting applet ...
Does anyone know how to fix this new issue? Or does anyone know of a better way to solve the 'activate control' problem in IE that does not cause the reloading of this applet?
Thanks.

Hi!
*1 -* Poor_Sitar_player's solution that i used.
a - Build the applet's comented code into a div ...
</div id='555>

</div>
b - After, insert a javascript the will remove the coments....
<script type="text/javascript">
var x = document.getElementById('555');
var texto = x.innerHTML;
texto = texto.replace('','');
x.innerHTML = texto;
<script type="text/javascript">
*2 - Another solution*
If you are using struts2 or your applet is inside a internal frame, is possible that the above solution will not work.
So, the solution that i found was place the applet code in the main page, with width and heigh iguals "*0*" and style="float: left;" to hide the applet.
This way, the applet will be load before you call the right page.
That's all.
Edited by: carlosmcp on Oct 14, 2008 7:01 AM

How to make an applet load user-defined package?

How to have an applet load user-defined package?
I have packages in their own directories, and the applet compiles and links with them, by use of CLASSPATH env variable. But when it comes time to run, it ignores that and does not know where the classes (in the packages) are.
If I don't use packages and put all code in one directory, runs fine. If I use an application, I can link with and load my packages.
I know applets can't use things like CLASSPATH for security reasons, but still, they should be able to be compiled out of several packages, why do I have to put all code together??

OK, for reference for future newbies, here's the answer:
use CODEBASE attribute in your html file (if on Windows server, don't use drive letter but relative path to .html file, Unix style, and put all your .class files beneath that, for example, in your .html file
<applet
CODEBASE="..\class
and then have package bar Bar.class file, in ..\class\bar

What mean applet load from file system.. till now i load by browser (is

just i heard about applet load in two way
1) from net (this is throw html )
2) from local file system. (What is this )
plszz

from local file system. (What is this )When the html file and the applet is on your harddisk and you open the html file in a browser.

Clicking noise coming form my new 27" iMac custom order (loaded machine) anybody having the same problem I mean this unit is a day old.

clicking noise coming form my new 27" iMac custom order (loaded machine) anybody having the same problem?
I mean this unit is a day old.

Hey lawrencefromsaskatoon,
Sounds like a HD issue. Take into an Apple retail store.
-Aleks

Removing gray crappy ugly Applet loader background

excuse my language but I've spent the last two days tring to figure out how to remove the gray screen when the applet loads in a browser...
I've searched the forums, found other ppl with same problem but no real solutions...
from what I found:
1. using javascript to hide the applet while its loading
works for IE but not for Netscape 6( http://www.codeproject.com/java/javaappletwaitmsg.asp )
2. using an applet to load the real applet
seems ok, but you still see the gray screen when the first applet loads... basically this just shortens the time you get to see the gray screen, not a proper solution( http://www.acm.vt.edu/~jmaxwell/appletloader/appletloader.html )
So should I assume there is no way to tell the java plug-in not to make the screen gray while its loading the applet??????
WHY? WHY? WHY?
is there really no way of changing this horrible GRAY screen???
please if anybody found out how to solve this, post it here!

2 main reasons why the gray panel stays for a long time..
1, the JVM is loaded, the applet is now visible but due to lots of late binding and other startup stuff, the Applet itself takes a long time to load.
Solution, in a previous page, load a dummy applet that does basically nothing and make it 1x1 pixels in width and height. This cuts down on the JVM start up.
2, Your Applet causes classes to load from the Web Server (of course).
Solution in 2 parts:
Part 1, make sure that all your applet classes are jar'ed with compression on and that your applet code has debug code off and no optimisation used when compiling. This ensures the smallest code size other than that produced an obfuscator.
Part 2, Your applet should be doing 2 things. Firstly, it should be attempting to turn its background to the chosen colour as soon as possible. It should be doing nothing else at all, not even creating other classes, loading classes nothing at all. Secondly, when the Applets background colour is set, then you can start loading classes that do the work your Applet is supposed to do. When that is all over, you can that start to modify the Applet's panel

Applet loading in IE vs Firefox

Hello!
I have a peculiar problem. I have several web pages containing lots of applets which via static methods register to a "master" applet which in turn collects information from a remote source and then updates the registered applets periodically.
Well this works fine, however the load times in IE are outrageous, it can take up to 2 minutes or so before a page with approxiamtely 20 applets is fully loaded. Whilst the same page takes about 2 seconds in firefox. I should also mention that when the page has been loaded in IE it works just as well as it does in firefox. The only problem is that it takes all to long for the page to load.
What could be the explanation of this? What is the fundamental difference in IE compared to firefox when applets are loaded?
Does anyone have some sort of clue about this one?
/HG

cell@tech wrote:
When I navigate to the site in IE and click on the link the applet loads, but when I navigate to the site in FireFox3 it displays the html code. My FireFox browser runs applets just fine on other sites, so is there something else I need to put in the html code for FF3?Works fine with FF2.
Try to add a BODY to your HTML.
<html>
<body>
<applet height="600" width="600" code="com.program.startup.Starter.class">
<param name=archive value=http://www.wheeling22.adventistchurchconnect.org/site/1/directory/WheelingWebSite.jar /> Your browser does not support the <code>applet</code> tag. </applet>
</body>
</html>Bye.
RG.

Unsigned applet load failure via HTTPS

Java Plug-in 1.5.0_06
MSIE 6.0
Unsigned applet loading via HTTPS failed.
We used a relative URL in an APPLET tag :
<APPLET CODEBASE="/TEST/" ARCHIVE="test.jar" CODE="nl.myorganisation.test">
The plugin does not seem to reuse the browser SSL-session.
It looks like the plugin does not find installed certificates in Explorer stores.
The 2th and 3th connection retry use an erroneous URL.
network: Connecting https://myorganisation.nl/TEST/test.jar with proxy=DIRECT
security: Loading Root CA certificates from <jre-home>\lib\security\cacerts
security: Loaded Root CA certificates from <jre-home>\lib\security\cacerts
security: Loading SSL Root CA certificates from <jre-home>\lib\security\cacerts
security: Loaded SSL Root CA certificates from <jre-home>\lib\security\cacerts
security: Loading Deployment SSL certificates from <user-home>\Data\Sun\Java\Deployment\security\trusted.jssecerts
security: Loaded Deployment SSL certificates from <user-home>\Data\Sun\Java\Deployment\security\trusted.jssecerts
security: Loading certificates from Deployment session certificate store
security: Loaded certificates from Deployment session certificate store
security: Loading certificates from Internet Explorer ROOT certificate store
security: Loaded certificates from Internet Explorer ROOT certificate store
security: Checking if certificate is in Deployment session certificate store
security: Checking if SSL certificate is in Deployment permanent certificate store
network: Connecting https://myorganisation.nl/CGI-BIN/nl/myorganisation/test.class with proxy=DIRECT
security: Loading certificates from Deployment session certificate store
security: Loaded certificates from Deployment session certificate store
security: Checking if certificate is in Deployment session certificate store
security: Checking if SSL certificate is in Deployment permanent certificate store
network: Connecting https://myorganisation.nl/CGI-BIN/nl/myorganisation/test.class with proxy=DIRECT
security: Loading certificates from Deployment session certificate store
security: Loaded certificates from Deployment session certificate store
security: Checking if certificate is in Deployment session certificate store
security: Checking if SSL certificate is in Deployment permanent certificate store
load: class nl.myorganisation.test not found.
Does anybody have any suggestion ?
Thanks and greetings,
Marc

First, Java plugin don't use browser https connection starting JRE 1.4, for running an applet in https server, the browser need to establish a https connection first, then Java pugin will use another https connection.
Second, Java plugin can read certificate from browser, starting JRE 1.5, you can go to Java control panel, Advanced tab, under security, check on the box:
"Use certificate and keys in browser keystore"
This way the Java plugin will read the certificate from browser too. (It will work automatically in IE browser, if you use Mozilla, you have to install JSS package first).
To answer your question, you can either turn on that option or import https certificate into JRE keystore (using Java control panel) for https connection.
Hope that answered your question.
Dennis

Applet loads full jar instead one resource

Hi,
i noticed that applet load full jar file instead loading one image!
i load images with:
InputStream in = this.getClass().getResourceAsStream(kaynakAdresi);how can i fix this?

This will happen if the Jar is not being properly cached. Check your settings for the Plug-In and the browser; also check the headers are being sent correctly from the web server - if the expiry time etc are missing then the browser will not cache the file. Look up an HTTP sniffer if you need to trace the headers.,

Strange (for me) applet loading error.

I�m developing an applet on an embedded server and I have been experienced the following error. When I load it from a 100 mbits LAN the applet loads and works well.
But, If I try to open it through 10mBits switch, the applet refuses to work and a lot class of class not found errors appears. (The same from a location outside my LAN)
Can it be a speed related problem?
here is a copy of my htm (myClass is stored inside cab3.cab)
<HTML>
<HEAD>
</HEAD>
<BODY BGCOLOR="FFFF82">
<CENTER>
<APPLET
     codebase = "."
     archive = "cab2.cab, cab3.cab, cab4.cab, cab5.cab"
     code = "myClass.class"
     width = "760"
     height     = "420"
     >
</APPLET>
</CENTER>
</BODY>
</HTML>
Thanks in advance.

A Full trace might help us out:
http://forum.java.sun.com/thread.jspa?threadID=656028

Java Applet Load Issues

For some applets, well, nothing happens. Im not sure what the problem is, but certain applets load, and other applets just make a gray frame and generate an error. Even my own applets I compile dont run. Everything works properly on my applets, because I can run them in the appletviewer, just not in the browser (which is kinda essential for running other peoples applets on the web, ya know). Odd thing is I can run them on my other comp, and practically the only difference is that it doesnt have the SDK on it.
Computer specs are: WinME with JDK and JRE v 1.4.1_01, and the JVM on it.
An excerpt of the error it generates every time a problematic applet is run (from my javalog.txt file):
Error loading class: <AppletName>
java.lang.NoClassDefFoundError
java.lang.ClassNotFoundException: <AppletName>
     at com/ms/vm/loader/URLClassLoader.loadClass
     at com/ms/vm/loader/URLClassLoader.loadClass
     at com/ms/applet/AppletPanel.securedClassLoad
     at com/ms/applet/AppletPanel.processSentEvent
     at com/ms/applet/AppletPanel.processSentEvent
     at com/ms/applet/AppletPanel.run
     at java/lang/Thread.run
I have no idea what any of that mess is, or why its so painful. If anyone can give a hand, Ill be checking here every 10 seconds until the time that it gets fixed, or you can email me at [email protected], thanks.

Can you find a "Sun Java Console" entry on IE's Tools menu? If not, the Sun jvm isn't installed in a manner that IE can access.
The messages that you posted in your original post are from the MS jvm. If the Sun jvm is operating, you shouldn't be seeing those messages.
If the Sun jvm is being invoked by IE, then a red/blue icon of a steaming cup of coffee will be in the Systray area of the Start bar - at the far right. If it's there, a rightclick will allow you to open the Sun java console, which will report any problems or errors encountered.
Check it out.

Forms 10.1.2.0.2 - Applet loading ... up to 1 min

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