Java Plug-in 1.4.0 fails ...

Hello all :-)
I've installed Java plug-in 1.4.0 on few machines with different Windows versions. Between them there're 4 machines with Win2000 ... On 3 machines everything is fine, but on the fourth one when I try to run an applet the Explorer gets stuck and also the Java console doesn't allow to be opened ...
When I'm trying to open the Plug-in dialog from the "control panel" it's also doesn't get opened ...
I've compared the "internet options" settings between those OS - it seems to be the same ...
Maybe somebody has already faced similar problem ??? PLEASE :-))

I have a very similar situation with JRE 1.4.0. Two nearly identical platforms running WIndows 2000 SP3, IE 5.5 SP2 with security updates and on one machine all is well and the other simply refuses to start the Java Console control panel applet and refuses to load/render java applets (i.e., IE stops responding).
I have have experimented a great deal and have discovered that the one machine that is working without problems is also running the Altiris Vision master/control module whereas the machine that has problems is running Altiris Vision user module. I suspect one (or more) of the hooked interrupts in the user module may be the culprit. I read somewhere else in this forum that someone else with a similar remote control package (e.g., Carbon Copy) was experiencing a similar problem.
I would also like to resolve this issue. I hope this helps. Anyone else have any tips?

Similar Messages

JAI extension automatic installation fail with Java Plug-in 1.4.1_01

Hi everyone,
i have a html page with an applet that use the JAI (Java Advanced imaging) extension. I used to run it with java plug-in 1.3.1_03.
When the JAI extension was not installed, it was automatically downloaded and installed. I use the sun "Signed Auto Installation for browsers" jar available on the JAI download page.
But with Java Plug-in 1.4.1_01, it seems to have a security problem. Is the "Signed Auto Installation for browsers" only java plug-in 1.3 compatible or is there a way to install it with 1.4.
If anyone has encountered the same problem with another extension, it could help me to know how to have it installed automatically with java Plug-in 1.4.
I tested on IE 4 and 6 on Windows NT4 & IE 6 on Windows 2000, and i have the same results.
Thanks
Philippe
see the following java console output :
Java(TM) Plug-in: Version 1.4.1_01
Using JRE version 1.4.1_01 Java HotSpot(TM) Client VM
Modality popped
User selected: 0
Optional package download granted by user, download from http://xxxxxxxxxxxxxxxxxxxxxx/jai_windows-i586.jar
Connecting http://xxxxxxxxxxxxxxxxxx/jai_windows-i586.jar with no proxy
Connecting http://xxxxxxxxxxxxxxxxxx/jai_windows-i586.jar with cookie "JIGSAW-SESSION-ID=J986902630-19"
Loading Root CA certificates from D:\PROGRA~1\Java\J2RE14~1.1_0\lib\security\cacerts
Loaded Root CA certificates from D:\PROGRA~1\Java\J2RE14~1.1_0\lib\security\cacerts
Loading JPI certificates from D:\WINNT\Profiles\qpbl\.java\jpicerts141_01
Loaded JPI certificates from D:\WINNT\Profiles\qpbl\.java\jpicerts141_01
Loading certificates from JPI session certificate store
Loaded certificates from JPI session certificate store
Checking if certificate is in JPI permanent certificate store
Checking if certificate is in JPI session certificate store
Checking if certificate is in Root CA certificate store
Checking if certificate is in Root CA certificate store
Checking if certificate is in Root CA certificate store
sun.misc.ExtensionInstallationException: User deny optional package installer to be launched.
     at sun.plugin.extension.ExtensionInstallationImpl.verifyJar(Unknown Source)
     at sun.plugin.extension.ExtensionInstallationImpl.access$100(Unknown Source)
     at sun.plugin.extension.ExtensionInstallationImpl$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     at sun.plugin.extension.ExtensionInstallationImpl.installExtension(Unknown Source)
     at sun.misc.ExtensionDependency.installExtension(Unknown Source)
     at sun.misc.ExtensionDependency.checkExtension(Unknown Source)
     at sun.misc.ExtensionDependency.checkExtensions(Unknown Source)
     at sun.misc.ExtensionDependency.checkExtensionsDependencies(Unknown Source)
     at sun.misc.URLClassPath$JarLoader.parseExtensionsDependencies(Unknown Source)
     at sun.misc.URLClassPath$JarLoader.getClassPath(Unknown Source)
     at sun.misc.URLClassPath.getLoader(Unknown Source)
     at sun.misc.URLClassPath.getResource(Unknown Source)
     at java.net.URLClassLoader$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     at java.net.URLClassLoader.findClass(Unknown Source)
     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)
Modality pushed
Modality popped
Optional package installation failed.
Installation successful

I seem to be having the same problem. If you figured out the solution, can you please post it?
Thanks

Excuse me,i failed to install java plug-in in the platform of pentium 4

r there some compatiable problems between p4 n java plug-in?
thx a lot~

No there's no compatible issues with P4. The processor has nothing with java plug-ins since java uses its own virtual processor and it runs on different processors/OS platforms. Maybe there's some problem with your program installer.

Java Plug-in 1.5.0_06 Error JRE notinited

Uninstalled all JRE versions. and downloaded the previous offline install packets from:
http://java.sun.com/products/archive/
JRE 1.5.0
JRE 1.5.0_1
JRE 1.5.0_2
JRE 1.5.0_3
JRE 1.5.0_4
JRE 1.5.0_5
JRE 1.5.0_6
,Installed them one after the other due to I read somewhere they recommend you keep all your JRE versions. Keep getting that error JRE notinited error on the brower status bar when I run the verify installation proccess at
http://java.com/en
JRE 1.4.1_02 an older version works if I uninstall all the newer versions and leave this version.
None of the browser installed seem tow ork with the JRE 1.5 ect.
I have IE 6, Netscape 7.2,. Firefox 1.5 all will not load applets and get that verify install red x for failing to load.
Below is what I get in the Java Log.
I
Java Plug-in 1.5.0_06
Using JRE version 1.5.0_06 Java HotSpot(TM) Client VM
User home directory = C:\Documents and Settings\Darrel Decal
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
o: trigger logging
p: reload proxy configuration
q: hide console
r: reload policy configuration
s: dump system and deployment properties
t: dump thread list
v: dump thread stack
x: clear classloader cache
0-5: set trace level to <n>
load: class jreCheck.class not found.
java.lang.ClassNotFoundException: jreCheck.class
     at sun.applet.AppletClassLoader.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)
Caused by: 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)
     ... 10 more
Exception in thread "Thread-4" java.lang.NullPointerException
     at sun.plugin.util.GrayBoxPainter.showLoadingError(Unknown Source)
     at sun.plugin.AppletViewer.showAppletException(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
java.lang.NullPointerException
     at sun.plugin.util.GrayBoxPainter.showLoadingError(Unknown Source)
     at sun.plugin.AppletViewer.showAppletStatus(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Some People claim that Norton programs might interfere, I disabled them even went as far to uninstall them which takes a long time.. to uninstall and install them back.
I even went as far as a clean systems install of windows XP sp2 Home Edition and th en tried to update to Sun Java and still got the red X basically saying something wrong with install. But nothing every says its wrong when you run the offline installation. Just when you go back to the website to veriffy jjava is installed.
To be able to use my subsciption I pay for on Pogo.com to play games that require applets I had to enable the MSJava in Internet Explorer and disable the box of the Sun Java applet version whatever you have installed to have Runtime Environment.
If you don't have the MS Java on your Internet Explorer Advanced Options you can get it at this address:
http://www.microsoft.com/mscorp/java/
Go figure. I thought Sun Java would be more better which I had working before have no clue why it stopped working and those errors come up when trying to play games that require the use of the java applet.
Was hoping other java users who have figured out why it stopped can tell me what to look for to alter so I can change back to sun Java.
The Sun Java works great with other applications just not the applets.

The same problem happened to me. When upgrading from JRE 1.5.0_5 to JRE 1.5.0_6, suddenly no applets would load, and all I could see was the little red X.
I tried to change proxysettings (I dont use a proxy, but it is told at http://www.java.com/en/download/help/redximage.xml that it is due to wrong proxy-settings). It didn't help.
I tried to turn off zonealarm. It didn't help.
I tried to clear the browsers cache. It didn't help.
I have been using both Firefox 1.5, and IE6. None would load the java-applets.
So I uninstalled all older JRE versions and installed JRE 1.4.1_02. It worked!
I then tried to upgrade to JRE 1.5.0. It didn't work.
Now I am back at JRE 1.4.1_02 without knowing why I had to downgrade through 6 versions that through the last year or so has been working fine on my machine.
I have no idea why it suddenly wouldnt work with the newer versions.
Any ideas?
Thank you.

Java Plug-in and IE 6

Has anyone tried to use the Java Plug-in 1.3.1 with IE 6 on Win 2000 or Win XP? If so, does it still work. I'm wondering whether Sun is gonna have to make it's plugin an ActiveX component like Apple had to with its Quicktime plugin.

any ideas on how i can fix this ??
company's web page comes up but where there should be something there, there is a red x. I then can right click on the red x and get this java
code.
Java(TM) Plug-in: Version 1.4.2_01
Using JRE version 1.4.2_01 Java HotSpot(TM) Client VM
yavs: Yet Another Vertical Scroller, version 1.2
(c) 1998 Steve Bassler http://www.westol.com/~bassmstr
yavs: Yet Another Vertical Scroller, version 1.2
(c) 1998 Steve Bassler http://www.westol.com/~bassmstr
yavs: Yet Another Vertical Scroller, version 1.2
(c) 1998 Steve Bassler http://www.westol.com/~bassmstr
load: class xms.EntryApplet.class not found.
java.lang.ClassNotFoundException: xms.EntryApplet.class
     at sun.applet.AppletClassLoader.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)
Caused by: 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)
     ... 10 more
Any ideas ?? Also get the error on the bottom of the page as loading java failed.

Java Plug-in No Longer Works

After uninstalling jdk 1.4.2 and installing 1.5 I can no longer get the Java Plug-in to come up in either IE or Firefox (I'm on Windows XP SP2). I get a Fatal Error with the message "The Java Runtime Environment cannot be loaded from <\bin\server\jvm.dll>. No amount of uninstalling and re-installing and re-booting has helped. Any ideas?

The message is saying Java is trying to load the server jvm (as opposed to the "standard" client jvm) and fails - presumably because it's not present. As shipped, the JRE - which the Java Plug-in uses - doesn't include the server jvm. The JDK does.
Maybe you altered the default configuration? The jvm.cfg file specifies the default jvm, and is here:
C:\Program Files\Java\jre1.5.0_05\lib\i386\jvm.cfg
The JDK has the server jvm; you can copy its \server\ folder to the JRE, as an alternative.
If you start Java with the command java-version it'll tell you which jvm is being used.

Java Plug-in 1.4.0 throws an IllegalStateException: zip file closed

Cross-posting to reach a wider audience:
Java Plug-in 1.4.0 throws an IllegalStateException: zip file closed
Author: remyb Jul 23, 2002 6:36 AM
A IllegalStateException is thrown when the class loader
try to load a class from my applet JAR file.
The applet is embedded in a JSP page which use the Plug-In 1.4.0.
That JSP is hosted by Tomcat 4.0.1.
The applet JAR file is signed with a self-signed certificate.
The applet has been compiled with JDK 1.4.0.
The jar has been put in the Plug-in cache successfully.
Here is the stack trace I got in the Java Console ...
java.lang.IllegalStateException: zip file closed
at java.util.zip.ZipFile.getEntry(Unknown Source)
at java.util.jar.JarFile.getEntry(Unknown Source)
at sun.plugin.cache.CachedJarFile.getEntry(Unknown Source)
at java.util.jar.JarFile.getJarEntry(Unknown Source)
at sun.misc.URLClassPath$JarLoader.getResource(Unknown Source)
at sun.misc.URLClassPath.getResource(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
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 java.lang.ClassLoader.loadClassInternal(Unknown Source)
Please somebody help me !!
Thanks !
Re: Java Plug-in 1.4.0 throws an IllegalStateException: zip file closed
Author: mutmansky
In Reply To: Java Plug-in 1.4.0 throws an IllegalStateException: zip file closed Jul 26, 2002 6:36 AM
Reply 1 of 1
I've got a very similar error, but unfortuneatly I don't have an answer yet. The only difference is that my Applet is embedded in a standard HTML page, and loaded via Apache. Once the Applet runs, it then communicates with the servlet via Tomcat. I also exchange data with another server task via CORBA.
But everything else is the same, self-signed applet, applet compiles successfully, and jar is being put in the Plug-in Caceh successfully.
I have narrowed the problem down a bit, and maybe you can tell me if you're in a similar situation:
In my case, I need to encrypt the data that I'm sending through CORBA, so I create a Cipher object using Cipher.getInstance(). This method call seems to be the catalyst of my troubles. No matter where I move that call in my code, the next time the code tries to instantiate a class defined in my applet jar file after that "getInstance" call, I get the "zip file closed error." It's like the classloader is confused, because the Cipher.getInstance method would be accessing a different jar file or something. Are you trying to do something similar? Maybe not creating a Cipher, but creating some other object defined outside your own jar-file?
To top it off, if I disable caching in the Plugin control panel, everything works fine. But that's not really an option for me, since it slows things down a lot, and I can't make all my users go into their control panels and disable caching. But at leasts it makes me confident that there's not a problem with my code.
In my latest attempt to circumvent this problem, I even put the Cipher.getInstance() call in a static initializer. Here's the stack trace from that attempt:
java.lang.IllegalStateException: zip file closed
at java.util.zip.ZipFile.getEntry(Unknown Source)
at java.util.jar.JarFile.getEntry(Unknown Source)
at sun.plugin.cache.CachedJarFile.getEntry(Unknown Source)
at java.util.jar.JarFile.getJarEntry(Unknown Source)
at sun.misc.URLClassPath$JarLoader.getResource(Unknown Source)
at sun.misc.URLClassPath.getResource(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
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 java.lang.ClassLoader.loadClassInternal(Unknown Source)
at com.uss.wbi.client.WBIClient.<init>(WBIClient.java:404)
at com.uss.wbi.client.WBIApplet.init(WBIApplet.java:122)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
In other words, since the getInstance method is in a static initializer, the next thing to run is the applet.init(), which is what is failing now. If I move the Cipher.getInstance method into the client constructor, the next time I instantiate a new object, I'll get the error there.
Has anybody else seen anything like this? Or does anybody know how I can flush the Cache from the applet code? Or can I reset the ClassLoader in some way in the code?
Thanks,
Steve

Well, I finally came to a solution that is acceptable at least to me, if not ideal. I've started using the BouncyCastle lightweight API. This makes my code somewhat more complicated, and I had to bundle up all the BouncyCastle classes that I'm using into a jar file, and download that to my applet along with my client jar file (after signing the jar files). Using this Lightweight API bypasses the Cipher.getInstance() method all together, and is a little harder to use, but at least everything is working consistently now.
I still believe this to be a bug either in the ClassLoader or the Cipher.getInstance() method. I intend to try to write a test applet that reproduces the error in a more simple way and if I can pull that off, I'll submit a bug report to Sun.
Thanks to all who responded!!
Steve

Java Plug-in 1.4 not working with IE5.5

Hi All,
I got problem loading a simple java class to IE5 using java plug-in JRE 1.4.0 beta 2.
The error message is following:
However, it works fine when I open the html page directly in the browser( i.e. use file:// instead of http://)
I'm using IE 5.5 sp 2, apache 1.3.14 for win NT 4.0 sp 6.
The page works for Netscape 4.7, but not for Netscape 6.
load: class Test.class not found.
java.lang.ClassNotFoundException: Test.class
     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)
Caused by: 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)
     ... 11 more

Hi,
I saw your posting about the solution to the problem of "class not found" when trying to load a simple applet from the browser. I've got the same exact error:
Java(TM) Plug-in: Version 1.4.1
Using JRE version 1.4.1 Java HotSpot(TM) Client VM
User home directory = C:\Documents and Settings\Administrator Proxy Configuration: No proxy ----------------------------------------------------
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
o: trigger logging
p: reload proxy configuration
q: hide console
r: reload policy configuration
s: dump system properties
t: dump thread list
v: dump thread stack
x: clear classloader cache
0-5: set trace level to <n>
load: class HelloApplet.class not found.
java.lang.ClassNotFoundException: HelloApplet.class
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)
Caused by: 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)
... 11 more
I checked the Proxy settings in the java plugin console, and it says "use browser settings" . I also checked the settings in the browser in "LAN settings" but there is nothing checked (there is no ip address of any proxy server), does that mean we don't use a proxy server? and I should keep on looking for another cause to the problem?
Thanks in advance
Cecilia
([email protected])

WEBUTIL and Sun Java Plug-In

Hello friends:
how can I setup my formsweb.cfg to use Sun Java Plug-In (instead of JInitiator) and WEBUTIL?
I tried all I can but still send me the same error when I try to use some of its functionalities:
oracle.forms.webutil.fileTransfer.FileTransfer bean not found. Webutil_file_trnasfer.getmaxtransfer will not work.
This errors happens no matter which webutil function or procedure am I using.
Does anybody know which is the cause of the problem or have some example to config my formsweb.cfg for Sun Java Plug-In and WEBUTIL.
Thanks so much
Abdel

I did it.
But it sends me this error now:
load: class oracle.forms.webutil.common.RegisterWebUtil not found.
java.lang.ClassNotFoundException: oracle.forms.webutil.common.RegisterWebUtil
     at sun.applet.AppletClassLoader.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)
Caused by: 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)
     ... 10 more
Exception in thread "Thread-5" java.lang.NullPointerException
     at sun.plugin.util.GrayBoxPainter.showLoadingError(Unknown Source)
     at sun.plugin.AppletViewer.showAppletException(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
java.lang.NullPointerException
     at sun.plugin.util.GrayBoxPainter.showLoadingError(Unknown Source)
     at sun.plugin.AppletViewer.showAppletStatus(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Any suggestions?
thanks for your help.
AM

Webutil and Sun Java plug-in 1.4.1

Hello,
When trying to use webutil with Sun Java plug-in, the downloading of the dll files from the AS fails. I am using a named config =jpi2, so my URL for starting the application looks like this:
http://myappserver.my.domain/forms90/f90?config=jpi2
The output from the console trace is like this:
WUT[downloadFromURL()] Source is http://myappserver.my.domain/forms90/f90?config=jpi2webutil/d2kwut60.dll.
When using Jinitiator it works just fine. Is it because of Sun plug-in, or webutil?
/cheers

Hi,
Yes I created a new template with two applet referenses.
I did find a workaround though. I commented out the dll's from the webutil.cfg, since I guess I will not be needing theese for my purposes, ie fileupload/download and clientinfo. Is that correct? It is working now with the dll's commented out, it will not try to download..
/Vidar

Authentication issue about java plug-in

Hi all:
Since it is a urgent issue and I really need some help,I post the same problem again .Here is my problem description:
I have a website hosted on a Microsoft IIS web server,the web server name is win2003stdbase1.Because of some custom needs,the website must use Kerberos authentication. Other authentication method such as NTLM will fail.The website contains a jar file.
When a client use IE to visit a html page containning a java applet on that site, the java plug-in launches and a dialog box pop up.Here is the Details of the dialog box:
Title: Password Needed - Networking
Server: win2003stdbase1/192.168.0.43
Scheme: ntlm
Use name:
Password:
Domain:
Even I input the right user name and password,the dialog keeps poping ups.
Suspect that the java plug-in use ntlm and it case the authentiaction failure.Can we conifgure the java plug-in to use Kerberos authentication type?And how to do it?
If I did not explain the problem clearly enough,please let me know.
Also any other suggestion about the issue are welcome.

You should always use the latest Java version. Older versions have security vulnerabilities and should not be used. You do not need Java Console extension and they may also not work anyway.
See also:
*http://kb.mozillazine.org/Java

Java Plug-in 1.5.0_02 applet error

Hi to all,
I have a situation that i cannot resolve. I have a computer in which i login as myself (admin context) and can view the site correctly without errors. However, when i login as a normal user (user) with some group policies implemented i get the following error. My TOC and tool bar do not appear and this is the error extracted.
My question is that i know it is group policy related but which policy would invoke this result. ? Ie: disabling java scripting in gpedit, disabling java all together etc...
Any help would be appreciated.
Java Plug-in 1.5.0_02
Utilisation de la version JRE 1.5.0_02 Java HotSpot(TM) Client VM
R�pertoire d'accueil de l'utilisateur = C:\Documents and Settings\dbabin
c: effacer la fen�tre de la console
f: finaliser les objets de la file d'attente de finalisation
g: lib�rer la m�moire
h: afficher ce message d'aide
l: vider la liste des chargeurs de classes
m: imprimer le relev� d'utilisation de la m�moire
o: d�clencher la consignation
p: recharger la configuration du proxy
q: masquer la console
r: recharger la configuration des politiques
s: vider les propri�t�s syst�me et d�ploiement
t: vider la liste des threads
v: vider la pile des threads
x: effacer le cache de chargeurs de classes
0-5: fixer le niveau de tra�age � <n>
charger : classe a0ce100 introuvable.
java.lang.ClassNotFoundException: a0ce100
at sun.applet.AppletClassLoader.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)
Caused by: 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)
... 10 more
java.lang.NoClassDefFoundError: JTreeCanvas
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
at java.lang.Class.getConstructor0(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(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)

I forgot to mention the envrironment.
Windows 2000 SP4
Sun Java Plug-in 1.5.0_02

Cannot install java plug-in 1.6.0_25 in firefox 7 under fedora 7

I have firefox 6 under fedora 7, I try to upgrade to firefox 7 but it is it is already up to date, so I manually download firefox 7 in \home\admin\firefox7,
but I found there is no java plug-in 1.6.0.25 and I google many site and it mention plugin folder inside firefox folder but I cannot see this folder, so
how to install java plug-in 1.6.0_25 in firefox 7 under fedora 7?
some more information,
[admin@localhost 下載]$ locate libjavaplugin_oji.so
/home/admin/firefox3.5/firefox/plugins/libjavaplugin_oji.so
/home/admin/firefox4.0/plugins/libjavaplugin_oji.so
/usr/java/jre1.5.0_15/plugin/i386/ns7/libjavaplugin_oji.so
/usr/java/jre1.5.0_15/plugin/i386/ns7-gcc29/libjavaplugin_oji.so
/usr/java/jre1.6.0_25/plugin/i386/ns7/libjavaplugin_oji.so
/usr/java/jre1.6.0_25/plugin/i386/ns7-gcc29/libjavaplugin_oji.so
/usr/lib/firefox-2.0.0.3/plugins/libjavaplugin_oji.so
[admin@localhost plugins]$ su -
Password:
[root@localhost ~]# ln -s /usr/java/jre1.6.0_25/plugins/i386/ns7/libjavaplugin_oji.so /usr/lib/mozilla/plugins/libjavaplugin.so
I follow many web site recommend method like above, still fail to installed java plug-in 1.6.0_25

where is the "Firefox application's directory, in the plugins subdirectory"?
[admin@localhost ~]$ cd firefox7
[admin@localhost firefox7]$ ls -l
total 29164
-rw-r--r-- 1 admin admin 2153 2011-09-28 19:04 application.ini
-rw-r--r-- 1 admin admin 7496 2011-09-28 19:04 blocklist.xml
drwxr-xr-x 3 admin admin 4096 2011-09-28 18:59 chrome
-rw-r--r-- 1 admin admin 36 2011-09-28 18:59 chrome.manifest
drwxr-xr-x 2 admin admin 4096 2011-09-28 18:59 components
-rwxr-xr-x 1 admin admin 134132 2011-09-28 19:05 crashreporter
-rw-r--r-- 1 admin admin 3665 2011-09-28 18:59 crashreporter.ini
-rw-r--r-- 1 admin admin 622 2011-09-28 18:59 crashreporter-override.ini
drwxr-xr-x 3 admin admin 4096 2011-09-28 18:59 defaults
-rw-r--r-- 1 admin admin 142 2011-09-28 19:04 dependentlibs.list
drwxr-xr-x 2 admin admin 4096 2011-09-28 18:59 dictionaries
drwxr-xr-x 3 admin admin 4096 2011-09-28 19:04 extensions
-rwxr-xr-x 1 admin admin 50064 2011-09-28 19:05 firefox7
-rwxr-xr-x 1 admin admin 50068 2011-09-28 19:05 firefox-bin
drwxr-xr-x 2 admin admin 4096 2011-09-28 18:59 hyphenation
drwxr-xr-x 2 admin admin 4096 2011-09-28 19:04 icons
-rw-r--r-- 1 admin admin 478 2011-09-28 19:05 libfreebl3.chk
-rwxr-xr-x 1 admin admin 311768 2011-09-28 19:05 libfreebl3.so
-rwxr-xr-x 1 admin admin 5864 2011-09-28 19:05 libmozalloc.so
-rwxr-xr-x 1 admin admin 589768 2011-09-28 19:05 libmozsqlite3.so
-rwxr-xr-x 1 admin admin 190896 2011-09-28 19:05 libnspr4.so
-rwxr-xr-x 1 admin admin 873300 2011-09-28 19:05 libnss3.so
-rwxr-xr-x 1 admin admin 383568 2011-09-28 19:05 libnssckbi.so
-rw-r--r-- 1 admin admin 478 2011-09-28 19:05 libnssdbm3.chk
-rwxr-xr-x 1 admin admin 122232 2011-09-28 19:05 libnssdbm3.so
-rwxr-xr-x 1 admin admin 81236 2011-09-28 19:05 libnssutil3.so
-rwxr-xr-x 1 admin admin 13808 2011-09-28 19:05 libplc4.so
-rwxr-xr-x 1 admin admin 10668 2011-09-28 19:05 libplds4.so
-rwxr-xr-x 1 admin admin 128364 2011-09-28 19:05 libsmime3.so
-rw-r--r-- 1 admin admin 478 2011-09-28 19:05 libsoftokn3.chk
-rwxr-xr-x 1 admin admin 189256 2011-09-28 19:05 libsoftokn3.so
-rwxr-xr-x 1 admin admin 167692 2011-09-28 19:05 libssl3.so
-rwxr-xr-x 1 admin admin 12204 2011-09-28 19:05 libxpcom.so
-rwxr-xr-x 1 admin admin 21458148 2011-09-28 19:05 libxul.so
-rwxr-xr-x 1 admin admin 13692 2011-09-28 19:05 mozilla-xremote-client
-rw-r--r-- 1 admin admin 4632263 2011-09-28 18:59 omni.jar
-rw-r--r-- 1 admin admin 136 2011-09-28 19:04 platform.ini
-rwxr-xr-x 1 admin admin 40668 2011-09-28 19:05 plugin-container
-rw-r--r-- 1 admin admin 1921 2011-09-28 18:59 precomplete
-rw-r--r-- 1 admin admin 177 2011-09-28 18:59 README.txt
-rw-r--r-- 1 admin admin 34145 2011-09-28 19:04 removed-files
-rwxr-xr-x 1 admin admin 10380 2011-09-28 19:04 run-mozilla.sh
drwxr-xr-x 2 admin admin 4096 2011-09-28 18:59 searchplugins
-rw-r--r-- 1 admin admin 825 2011-09-28 19:04 Throbber-small.gif
-rw-r--r-- 1 admin admin 6 2011-09-28 18:59 update.locale
-rwxr-xr-x 1 admin admin 118192 2011-09-28 19:05 updater
-rw-r--r-- 1 admin admin 124 2011-09-28 18:59 updater.ini
drwxr-xr-x 3 admin admin 4096 2011-10-26 22:21 updates

How to set up a Java Plug-in Download page in case of netscape?

hai all of you,
i have a problem regarding downloading plugin.
i am using <object > and <embed> tags to download the plugins inorder to run the applets. but it is taking long time to download the plugin form sun.com.
so what i have done is, i downloaded the plugin.exe file and .cab file and put it in my tomcat server mainted by other party.(y application if for internet purpose only.)
i refered to http://java.sun.com/products/plugin/1.2/docs/intranet.html. there it is mentioned that, to download the plugin.
for I.E i can able to change the code.
but for NetScape it's a little bit confusing.
i have downloaded the binary file in my own directory.
here he is asking to set up a java plugin-in download page.
instead of this "plugin-install.html" page what page i should create and what should be the code in this page if i have to write on my own. please let me know if anybody know about it.
following para is from sun.com
"To deploy Java Plug-in in intranet environments with Navigator, you need to download and store the Java Plug-in binary file on one of your web servers. Then you need to set up a Java Plug-in Download page and modify the pluginspage attribute in the EMBED tag to refer to this page. The Download page should have options to download different versions of Java Plug-in, such as for Windows and Solaris. For example, if you have set up the Java Plug-in Download page at "http://javaweb.eng/plugin/" and the page is called plugin-install.html, you can specify the pluginspage as "http://javaweb.eng/plugin/plugin-install.html". "
thanks
by
sambareddy

I have successfuly done this.
Change the converted html as per the instructions to point to another page.
Here is an example of the new html page you need to create:
<html>
<head>
<title>Java Plugin Install Page</title>
</head>
<body>
<h2><center>Java Plugin Install Page</center></h2>
<p></p>
<h3>Windows Version Only!!!</h3>
Click here to Download Plugin
<p></p>
<p>You may or may not be asked to either save or run from current location</p>
<p>If the run from current location is available, use that option</p>
<p>If you can only save the file, then save it to your workstation and exit the download page and exit Netscape. Then using Windows Explorer, go to where you downloaded the file and double click on the file to run it. Accept all options during the install process and once it has finished try accessing your web page again using Netscape. You should then get to the web page or application and this page will not apppear again.
</body>
</html>
If you put the file j2re-1_3_1-win.exe on a web server somewhere then you will have to prefix the file with
http://yourwebserverdirectory/
Hope this helps.

Java Plug-in / JSObject support with IE and Firefox

Hi there,
Basicaly, the idea behind is to write objects in Java to replace or extend functionnalities of a web page (like XMLHttpRequest object). Those objects should support event handler writen in Javascript.
My first idea was to create JavaBeans and instantiate them through OBJECT tags in HTML (not as ActiveX objects). I don't find a way to instatiate a Javabean which was not also an applet.
Does someone knows how to ?
Anyway, the OBJECT tag may not work with Netscape. So, I went to use the APPLET tag with the Sun Java Plug-in.
I've made some tests with IE and Firefox and there is at least two differences between them (both use the Sun Java Plug-in) :
1/ Firefox / JSObject
When you pass a Javascript object to a Java method, it seems that you
cannot use methods like 'getMember', 'call', etc on this object.
(invocation of the method works but returns null)
But, if you access the same object form inside Java starting by
JSObject.getWindows(...) and so on, it works fine.
IE works in all cases.
Example, with the Java applet and HTML below :
. Java applet :
| package JavaJS;
|
| import netscape.javascript.*;
|
| public class FirefoxApplet
|        extends java.applet.Applet {
|   netscape.javascript.JSObject win = null;
|
|   public void init() {
|     win = netscape.javascript.JSObject.getWindow(this);
|   }
|
|   public Object getJSObjectMember( netscape.javascript.JSObject jso, String member ) {
|     return jso.getMember(member);
|   }
|
|   public netscape.javascript.JSObject getJSObjectFromPath( String jsoPath ) {
|     String [] jsoNames = jsoPath.split("\\.");
|     netscape.javascript.JSObject jso = win;
|
|     for( int i = 0; ( i < jsoNames.length ); i++ )
|       jso = (netscape.javascript.JSObject)jso.getMember(jsoNames);
|
| return jso;
| }
|
| public Object getJSObjectPathMember( String jsoPath, String member ) {
| return getJSObjectMember(getJSObjectFromPath(jsoPath),member);
| }
| }
[i]. HTML page :| <HTML>
| <HEAD>
| <TITLE>FirefoxApplet</TITLE>
| <META http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
| <META http-equiv="Content-Script-Type" content="text/javascript">
| <SCRIPT>
| var ffxa = null;
| var txa = null;
|
| var o = {
| s : "object o, member s",
| o : {
| s : "object o.o, member s"
| }
| }
|
| function go() {
| print(ffxa.getJSObjectMember(o,"s"));
| print(ffxa.getJSObjectMember(o.o,"s"));
| print(ffxa.getJSObjectPathMember("o","s"));
| print(ffxa.getJSObjectPathMember("o.o","s"));
| print(ffxa.getJSObjectMember(ffxa.getJSObjectFromPath("o"),"s"));
| print(ffxa.getJSObjectMember(ffxa.getJSObjectFromPath("o.o"),"s"));
| }
|
| function print( text ) {
| txa.value = txa.value+text+"\n";
| }
|
| function loaded() {
| ffxa = document.getElementById("ffxa");
| txa = document.getElementById("txa");
|
| }
| </SCRIPT>
| </HEAD>
| <BODY onload="loaded()">
| <APPLET id="ffxa"
| code="JavaJS.FirefoxApplet.class"
| width="0"
| height="0"
| MAYSCRIPT>
| </APPLET><BR>
| <INPUT type="button" onclick="go()" value="Go"><BR>
| <TEXTAREA id="txa" rows="10" cols="40"></TEXTAREA>
| </BODY>
| </HTML>
When the HTML page has loaded, a click on the Go button gives :
. Firefox output :
| null
| null
| object o, member s
| object o.o, member s
| null
| null
. IE output :
| object o, member s
| object o.o, member s
| object o, member s
| object o.o, member s
| object o, member s
| object o.o, member s
2/ Internet Explorer / JSObject
As we have seen in the previous example, passing Javascript object to
an applet method works. Here, the problem comes when a Javascript object
is pass to a method that's not an applet's method.
If within the applet, you instantiate a new Java object and then
call from Javascript a method on this object with a Javascript object as
parameter then an Exception is raised when invoking that method.
Firefox works fine here.
Example, with the Java applet and HTML page below :
. Java applet :
| package JavaJS;
|
| public class IEApplet extends java.applet.Applet {
|
|   public void init() {
|   }
|
|   public Object echo( Object object ) {
|     return object;
|   }
|
|   public Object newEcho() {
|     return new Echo();
|   }
| }
. Java Echo class
| package JavaJS;
|
| public class Echo {
|
|   public Echo() {
|   }
|
|   public Object echo(Object object) {
|     return object;
|   }
| }
. HTML page :
| <HTML>
|   <HEAD>
|     <TITLE>IEApplet</TITLE>
|     <META http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|     <META http-equiv="Content-Script-Type" content="text/javascript">
|     <SCRIPT>
|       var iea = null;
|       var txa = null;
|
|       var o = {
|         s : "object o, member s",
|         o : {
|           s : "object o.o, member s"
|         }
|       }
|
|       function go() {
|         print(iea.echo(o));
|         print(iea.newEcho().echo(o));
|       }
|
|       function print( text ) {
|         txa.value = txa.value+text+"\n";
|       }
|
|       function loaded() {
|         iea = document.getElementById("iea");
|         txa = document.getElementById("txa");
|
|       }
|     </SCRIPT>
|   </HEAD>
|   <BODY onload="loaded()">
|     <APPLET id="iea"
|             code="JavaJS.IEApplet.class"
|             width="0"
|             height="0"
|             MAYSCRIPT>
|     </APPLET><BR>
|     <INPUT type="button" onclick="go()" value="Go"><BR>
|     <TEXTAREA id="txa" rows="10" cols="40"></TEXTAREA>
|   </BODY>
| </HTML>When the HTML page has loaded, a click on the Go button gives :
. Firefox output :
| [object Object]
| [object Object]
. IE output :
| [object Object]
with this Exception on the second method invocation :
| java.lang.ClassCastException
|      at sun.plugin.com.DispatchImpl.convertParams(Unknown Source)
|      at sun.plugin.com.DispatchImpl.invokeImpl(Unknown Source)
|      at sun.plugin.com.DispatchImpl$1.run(Unknown Source)
|      at java.security.AccessController.doPrivileged(Native Method)
|      at sun.plugin.com.DispatchImpl.invoke(Unknown Source)
| java.lang.Exception: java.lang.ClassCastException
|      at sun.plugin.com.DispatchImpl.invokeImpl(Unknown Source)
|      at sun.plugin.com.DispatchImpl$1.run(Unknown Source)
|      at java.security.AccessController.doPrivileged(Native Method)
|      at sun.plugin.com.DispatchImpl.invoke(Unknown Source)There is a workaround for this, it's possible to wrap the Javascript object
in a Java object with an applet method and then use this Java object as
parameter.
Anyway, my questions are : regarding points 1/ and 2/ are these bugs with the Sun Java Plug-in ? or someone could explain these behaviors ?
Thanks for your reading.
Software infos :
. Firefox version 1.0.7
. Internet Explorer version 6.0.2800.1106 / JScript version 5.6
. Plug-in Java(TM): Version 1.4.2_08
. JSDK version 1.4.2_08
. Windows 2000 Server version 5.00.2195 sp4

Please test with the new Java Plug-In available in 6u10 at http://jdk6.dev.java.net/6u10ea.html. The Java/JavaScript bridge has been completely rewritten and is now more complete and portable than ever before. Longstanding issues should be fixed with this new version. Please try it and post if you continue to have problems.

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