Java applet won't load from Jar file

Hi all,
I have a problem which I didn't used to have. I have written an applet which used certain classes stored in directories. It used to work just fine. I recently updated the main class from which the applet starts and since then I get error messages:
Java Plug-in 1.6.0_26
Using JRE version 1.6.0_26-b03-384-10M3425 Java HotSpot(TM) 64-Bit Server VM
User home directory = /Users/benoize
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
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 WiaRekenToolHC.class not found.
java.lang.ClassNotFoundException: WiaRekenToolHC.class
 at sun.plugin2.applet.Applet2ClassLoader.findClass(Applet2ClassLoader.java:252)
 at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Plugin2ClassLoader.java:250)
 at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Plugin2ClassLoader.java:180)
 at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Plugin2ClassLoader.java:161)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
 at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Plugin2ClassLoader.java:687)
 at sun.plugin2.applet.Plugin2Manager.createApplet(Plugin2Manager.java:3046)
 at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Plugin2Manager.java:1498)
 at java.lang.Thread.run(Thread.java:680)
Exception: java.lang.ClassNotFoundException: WiaRekenToolHC.class
As you can see it says that it can't find the class WiaRekenToolHC, but it's there in the jar files.
Here is the link where you can see it:
www.creativemathsolutions.nl/demo/HC/demo.html
The jar files are in the directory HC and Generic.
If you need more info then let me know!
Regards, Benoit

<applet
codebase="http://www.creativemathsolutions.nl/demo/HC"
code="WiaRekenToolHC.class"
ARCHIVE="HC/wia_hc_archive_v0_3.jar, Generic/wia_archive_v0_3.jar"
width=900 height=600>The code-base combined with archive href for the first Jar mean the JRE will look for it at:
http://www.creativemathsolutions.nl/demo/HC/HC/wia_hc_archive_v0_3.jar
It is not there. The other Jar is also missing from the stated location.

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EJP wrote:
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jschell wrote:
rritoch wrote:
I am developing an applet (extends Applet but uses swing components) using JDK 1.6 (Though these problems still happen in JDK 1.7) and I am unable to get the applet to load on a 64 bit machine in most cases.
To clarify...
1. You have tried it on 32 bit machine? Exactly which OS?I tested this on Windows Vista Business which is in 32 bit mode and the applets run without any problems
>
2. Your only 64 bit tests have involved 2008/Win7?
If so then I would suspect something with windows not java. Probably permissions.
The web server(s) are running on localhost and I am connecting on the same machine using a local network ip address (such as 192.168.*.*)
Yes, I haven't tried running the jars on other operating systems.
>
I don't understand that. If you are running on localhost then you should connect to localhost. If running on an IP then you should connect to that. Perhaps you meant that you have tested using both of those?I'm testing using the lan ip address but I'm connecting from the same machine. I've tried localhost and that didn't work so I tried lan ip since that will likely have a different java security context than localhost. At first I was blaming the IIS server but I downloaded the jar directly and using HTTP fox was able to verify that the jar is being sent with the correct mime-type and that the server can upload the jar file without a problem. This leaves me to believe the problem is with Java.

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Cannot load component from JAR file.

I got the message : cannot load component ... from JAR file. The class must be compiled and must be on the classpath of the project...
I just add a javabean from a JAR file from Palette manager, then drag and drop it, then got this message.
Can anyone tell me what i was wrong ? Thank you.

Hi,
You should paste your error log here to easy for other to help you.
For your scenario, it is a big chance you didn't include the jar file into your classpath, please check.
Thanks.

Dont ask why! How do I call an applet that is in a jar file that is...

Can someone tell me how I would call an applet that is inside of a jar file that is inside of a parent jar file?
example call to an Applet
<APPLET CODE="TimeApplet" ARCHIVE="time.jar" />what I want to do is something like
<APPLET CODE="TimeApplet" ARCHIVE="parent.time.jar" />
where parent is the top jar and time is the inner jar.any help or links to tutorials/articles would be most appreciated.
if you ask why I wont answer.

we are doing a signed applet and we only want the user to have to sign 1 time
and we have lots of applets to display so we dont want to have them sign for
each item.Sorry but that doesn't make much sense, niether does putting a jar file in a jar file.
Do you want the "do you trust" question only one time? If so than you only have
to sign all the jar files with the same key.
You can load a jar file from your applet but it seems that these jar files will run
in sanbox security no matter how you sign it:
http://forum.java.sun.com/thread.jspa?messageID=3582952
Asking why does make sense, I coud be asking how to climb a building without
telling my objective is to get on the 10th floor.
You would tell me how to climb the building an I'd probably do it and find out
later I could just as well have taken the elivator.

Can't open java control panel or any other .jar file

Unable to load any .jar file(like jdownloader) or the java control panel .The javaw.exe loads,but the window never open.Maybe it has to do with windows gui?I also got this error:(I don't know if this has to do anything about this-I am a regular user)
ERROR --- from---log
sorry, i falsely posted this message
Edited by: Agosto1990 on Jun 6, 2010 11:13 AM

Unable to load any .jar file(like jdownloader) or the java control panel .The javaw.exe loads,but the window never open.Maybe it has to do with windows gui?I also got this error:(I don't know if this has to do anything about this-I am a regular user)
ERROR --- from---log
sorry, i falsely posted this message
Edited by: Agosto1990 on Jun 6, 2010 11:13 AM

Unable to read TLD "META-INF/jsf_core.tld" from JAR file "file:

Hallo everybody :-) i've installed Workflow-Server + ARES + FormManager. When i call localhost:8080/adminui i can log in and the browser loads the next site --> it fails and says: org.apache.jasper.JasperException: Unable to read TLD "META-INF/jsf_core.tld" from JAR file "file:/C:/Adobe/LiveCycle/jboss/server/all/tmp/deploy/tmp56414LiveCycle.ear-contents/admi nui.war/WEB-INF/lib/jsf-impl.jar": org.apache.jasper.JasperException: Failed to load or instantiate TagExtraInfo class: com.sun.faces.taglib.FacesTagExtraInfo org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:5 0) org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:409) org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:183) org.apache.jasper.compiler.TagLibraryInfoImpl.<init>(TagLibraryInfoImpl.java:181) org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:418) org.apache.jasper.compiler.Parser.parseDirective(Parser.java:483) org.apache.jasper.compiler.Parser.parseElements(Parser.java:1539) org.apache.jasper.compiler.Parser.parse(Parser.java:126) org.apache.jasper.compiler.ParserController.doParse(ParserController.java:220) org.apache.jasper.compiler.ParserController.parse(ParserController.java:101) org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:203) org.apache.jasper.compiler.Compiler.compile(Compiler.java:470) org.apache.jasper.compiler.Compiler.compile(Compiler.java:451) org.apache.jasper.compiler.Compiler.compile(Compiler.java:439) org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) javax.servlet.http.HttpServlet.service(HttpServlet.java:810) com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322) com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:130) com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87) com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200) com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117) javax.faces.webapp.FacesServlet.service(FacesServlet.java:198) com.adobe.framework.SecurityFilter.doFilter(SecurityFilter.java:177) com.adobe.idp.um.auth.filter.PortalSSOFilter.doFilter(PortalSSOFilter.java:106) com.adobe.framework.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter .java:161) Any idea what' wrong? Thanks, Valerio

Hi Howard,
thank you for your post.
I actually new about the problems with the jvm version. Still i wanted to ask, cause there are different reports on this `java problems` and even though the 1.4.2_08 seems to be the best version (by the way this version is not to be downloaded any longer *sig*), there are people getting all installed with other versions. I couldn't find any regularity in the misbehavior of the servers while installing.
I finally achieved and got everything working ... but very slow. Loading the adminui or BAM features takes very long time (over one minute). Have you already had this delay. Any hint?
Thanks again,
Valerio

Java applet won't load from Jar file

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