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Posted to users@tomcat.apache.org by Robert Harper <ro...@iat-cti.com> on 2006/11/16 18:45:38 UTC
Serving up applets
This has probably been covered before but I'm having a hard time getting an
applet on a servlet generated page to load. I keep getting a ClassNotFound
exception even though the class is in several possible areas for it to load.
It is a package that is like com.company.service.MyApplet.class. If Tomcat
can provide the images, why can't it find and send the applet class?
Robert S. Harper
Senior Engineer
Information Access Technology, Inc.
1100 East 6600 South, Suite 300
Salt Lake City Utah USA 84121-7411
(801)265-8800 Ext. 255
FAX (801)265-8880
This e-mail is intended only for the addressee and may contain confidential
and/or privileged information. Any review, retransmission, or action taken
upon this information by persons other than the intended recipient is
prohibited by law. If you received this communication in error, please
contact us immediately at 801-265-8800. Although this e-mail and any
attachments are believed to be free of any virus or other defect, it is the
responsibility of the recipient to ensure that anything received or opened
is virus free. No responsibility is accepted by IAT for any loss or damage
in the event that such a virus or defect exists.
Re: Serving up applets
Posted by Martin Gainty <mg...@hotmail.com>.
If your client does not absolutely require an applet then you should consider re-factor as jsp/servlet (Struts/Spring/JSF come to mind)
Then if you want to access some resource specific function you can accomodate the access via a grant in catalina.policy
In either case you will have to eventually test on IE as this is default browser that comes with most windows installs-
Anyone else?
M-
This e-mail communication and any attachments may contain confidential and privileged information for the use of the
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this communication in error and that any review, disclosure, dissemination, distribution or copying of it or its
contents
----- Original Message -----
From: "Robert Harper" <ro...@iat-cti.com>
To: "'Tomcat Users List'" <us...@tomcat.apache.org>; "'Martin Gainty'" <mg...@hotmail.com>
Sent: Thursday, November 16, 2006 4:37 PM
Subject: RE: Serving up applets
> I'm not trying to do any extra work with Swing or such. I want to keep this
> as dumb as possible so I don't have to require the latest and greatest or
> test in every browser. This is very minimalist. I have tried playing with
> the codebase attribute in other testing and IE just got even more confused.
>
> Robert S. Harper
> Information Access Technology, Inc.
>
> -----Original Message-----
> From: Martin Gainty [mailto:mgainty@hotmail.com]
> Sent: Thursday, November 16, 2006 2:21 PM
> To: Tomcat Users List
> Subject: Re: Serving up applets
>
> Not to mention security permissions one must grant thru either
> updates to policy files OR
> running your bundled code thru SecurityManager PlugIn
>
> http://java.sun.com/developer/technicalArticles/Security/applets/
>
> Be mindful that this will have to work in every browser and every JVM your
> client supports
> so I would opt to install Sun Java Security Manager plugin
> http://java.sun.com/products/plugin/1.3/plugin-install.html
> OR
> RSA Security Manager plugin
> http://www.rsasecurity.com/blog/entry.asp?id=1003
>
> and configure the jar to execute/read/write within the plugin environment-
>
> HTH,
> M-
> This e-mail communication and any attachments may contain confidential and
> privileged information for the use of the
> designated recipients named above. If you are not the intended recipient,
> you are hereby notified that you have received
> this communication in error and that any review, disclosure, dissemination,
> distribution or copying of it or its
> contents
> ----- Original Message -----
> From: "David Smith" <dn...@cornell.edu>
> To: "Tomcat Users List" <us...@tomcat.apache.org>
> Sent: Thursday, November 16, 2006 3:17 PM
> Subject: Re: Serving up applets
>
>
>> Where are you putting the applet class? It can't be in WEB-INF because
>> that isn't available to the client.
>>
>> --David
>>
>> Robert Harper wrote:
>>
>>>The browser is. The Java console and an error box is displayed by IE when
> it
>>>tries to load the applet. I see nothing in the Tomcat logs. Either for
>>>security problems or not finding the class.
>>>
>>>Robert S. Harper
>>>Information Access Technology, Inc.
>>>
>>>-----Original Message-----
>>>From: Martin Gainty [mailto:mgainty@hotmail.com]
>>>Sent: Thursday, November 16, 2006 12:33 PM
>>>To: Tomcat Users List
>>>Subject: Re: Serving up applets
>>>
>>>Hi Robert
>>>
>>>Which class is throwing the ClassNotFoundException?
>>>
>>>M-
>>>This e-mail communication and any attachments may contain confidential and
>>>privileged information for the use of the
>>>designated recipients named above. If you are not the intended recipient,
>>>you are hereby notified that you have received
>>>this communication in error and that any review, disclosure,
> dissemination,
>>>distribution or copying of it or its
>>>contents
>>> ----- Original Message -----
>>> From: Robert Harper
>>> To: Tomcat Users
>>> Sent: Thursday, November 16, 2006 12:45 PM
>>> Subject: Serving up applets
>>>
>>>
>>> This has probably been covered before but I'm having a hard time getting
>>>an applet on a servlet generated page to load. I keep getting a
>>>ClassNotFound exception even though the class is in several possible areas
>>>for it to load. It is a package that is like
>>>com.company.service.MyApplet.class. If Tomcat can provide the images, why
>>>can't it find and send the applet class?
>>>
>>>
>>>
>>> Robert S. Harper
>>> Senior Engineer
>>> Information Access Technology, Inc.
>>> 1100 East 6600 South, Suite 300
>>> Salt Lake City Utah USA 84121-7411
>>>
>>> (801)265-8800 Ext. 255
>>> FAX (801)265-8880
>>>
>>>
>>>
>>>
>>>
>>> This e-mail is intended only for the addressee and may contain
>>>confidential and/or privileged information. Any review, retransmission, or
>>>action taken upon this information by persons other than the intended
>>>recipient is prohibited by law. If you received this communication in
> error,
>>>please contact us immediately at 801-265-8800. Although this e-mail and
> any
>>>attachments are believed to be free of any virus or other defect, it is
> the
>>>responsibility of the recipient to ensure that anything received or opened
>>>is virus free. No responsibility is accepted by IAT for any loss or damage
>>>in the event that such a virus or defect exists.
>>>
>>>
>>>
>>>
>>>
>>>---------------------------------------------------------------------
>>>To start a new topic, e-mail: users@tomcat.apache.org
>>>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>For additional commands, e-mail: users-help@tomcat.apache.org
>>>
>>>
>>>
>>
>>
>> --
>> =======================================
>> David Smith
>> Network Operations Supervisor
>> Department of Entomology
>> College of Agriculture & Life Sciences
>> Cornell University
>> 2132 Comstock Hall
>> Ithaca, NY 14853
>> Phone: 607.255.9571
>> Fax: 607.255.0939
>>
>>
>> ---------------------------------------------------------------------
>> To start a new topic, e-mail: users@tomcat.apache.org
>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>> For additional commands, e-mail: users-help@tomcat.apache.org
>>
>>
>
>
>
> ---------------------------------------------------------------------
> To start a new topic, e-mail: users@tomcat.apache.org
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
>
RE: Serving up applets
Posted by Robert Harper <ro...@iat-cti.com>.
It looks like the codebase attribute helped. Now I'll see what I can do from
there.
Thanks. Just don't let preliminary testing dictate what you don't try later
I guess.
Robert S. Harper
Information Access Technology, Inc.
---------------------------------------------------------------------
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RE: Serving up applets
Posted by Robert Harper <ro...@iat-cti.com>.
I'm not trying to do any extra work with Swing or such. I want to keep this
as dumb as possible so I don't have to require the latest and greatest or
test in every browser. This is very minimalist. I have tried playing with
the codebase attribute in other testing and IE just got even more confused.
Robert S. Harper
Information Access Technology, Inc.
-----Original Message-----
From: Martin Gainty [mailto:mgainty@hotmail.com]
Sent: Thursday, November 16, 2006 2:21 PM
To: Tomcat Users List
Subject: Re: Serving up applets
Not to mention security permissions one must grant thru either
updates to policy files OR
running your bundled code thru SecurityManager PlugIn
http://java.sun.com/developer/technicalArticles/Security/applets/
Be mindful that this will have to work in every browser and every JVM your
client supports
so I would opt to install Sun Java Security Manager plugin
http://java.sun.com/products/plugin/1.3/plugin-install.html
OR
RSA Security Manager plugin
http://www.rsasecurity.com/blog/entry.asp?id=1003
and configure the jar to execute/read/write within the plugin environment-
HTH,
M-
This e-mail communication and any attachments may contain confidential and
privileged information for the use of the
designated recipients named above. If you are not the intended recipient,
you are hereby notified that you have received
this communication in error and that any review, disclosure, dissemination,
distribution or copying of it or its
contents
----- Original Message -----
From: "David Smith" <dn...@cornell.edu>
To: "Tomcat Users List" <us...@tomcat.apache.org>
Sent: Thursday, November 16, 2006 3:17 PM
Subject: Re: Serving up applets
> Where are you putting the applet class? It can't be in WEB-INF because
> that isn't available to the client.
>
> --David
>
> Robert Harper wrote:
>
>>The browser is. The Java console and an error box is displayed by IE when
it
>>tries to load the applet. I see nothing in the Tomcat logs. Either for
>>security problems or not finding the class.
>>
>>Robert S. Harper
>>Information Access Technology, Inc.
>>
>>-----Original Message-----
>>From: Martin Gainty [mailto:mgainty@hotmail.com]
>>Sent: Thursday, November 16, 2006 12:33 PM
>>To: Tomcat Users List
>>Subject: Re: Serving up applets
>>
>>Hi Robert
>>
>>Which class is throwing the ClassNotFoundException?
>>
>>M-
>>This e-mail communication and any attachments may contain confidential and
>>privileged information for the use of the
>>designated recipients named above. If you are not the intended recipient,
>>you are hereby notified that you have received
>>this communication in error and that any review, disclosure,
dissemination,
>>distribution or copying of it or its
>>contents
>> ----- Original Message -----
>> From: Robert Harper
>> To: Tomcat Users
>> Sent: Thursday, November 16, 2006 12:45 PM
>> Subject: Serving up applets
>>
>>
>> This has probably been covered before but I'm having a hard time getting
>>an applet on a servlet generated page to load. I keep getting a
>>ClassNotFound exception even though the class is in several possible areas
>>for it to load. It is a package that is like
>>com.company.service.MyApplet.class. If Tomcat can provide the images, why
>>can't it find and send the applet class?
>>
>>
>>
>> Robert S. Harper
>> Senior Engineer
>> Information Access Technology, Inc.
>> 1100 East 6600 South, Suite 300
>> Salt Lake City Utah USA 84121-7411
>>
>> (801)265-8800 Ext. 255
>> FAX (801)265-8880
>>
>>
>>
>>
>>
>> This e-mail is intended only for the addressee and may contain
>>confidential and/or privileged information. Any review, retransmission, or
>>action taken upon this information by persons other than the intended
>>recipient is prohibited by law. If you received this communication in
error,
>>please contact us immediately at 801-265-8800. Although this e-mail and
any
>>attachments are believed to be free of any virus or other defect, it is
the
>>responsibility of the recipient to ensure that anything received or opened
>>is virus free. No responsibility is accepted by IAT for any loss or damage
>>in the event that such a virus or defect exists.
>>
>>
>>
>>
>>
>>---------------------------------------------------------------------
>>To start a new topic, e-mail: users@tomcat.apache.org
>>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>For additional commands, e-mail: users-help@tomcat.apache.org
>>
>>
>>
>
>
> --
> =======================================
> David Smith
> Network Operations Supervisor
> Department of Entomology
> College of Agriculture & Life Sciences
> Cornell University
> 2132 Comstock Hall
> Ithaca, NY 14853
> Phone: 607.255.9571
> Fax: 607.255.0939
>
>
> ---------------------------------------------------------------------
> To start a new topic, e-mail: users@tomcat.apache.org
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
>
---------------------------------------------------------------------
To start a new topic, e-mail: users@tomcat.apache.org
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org
Re: Serving up applets
Posted by Martin Gainty <mg...@hotmail.com>.
Not to mention security permissions one must grant thru either
updates to policy files OR
running your bundled code thru SecurityManager PlugIn
http://java.sun.com/developer/technicalArticles/Security/applets/
Be mindful that this will have to work in every browser and every JVM your client supports
so I would opt to install Sun Java Security Manager plugin
http://java.sun.com/products/plugin/1.3/plugin-install.html
OR
RSA Security Manager plugin
http://www.rsasecurity.com/blog/entry.asp?id=1003
and configure the jar to execute/read/write within the plugin environment-
HTH,
M-
This e-mail communication and any attachments may contain confidential and privileged information for the use of the
designated recipients named above. If you are not the intended recipient, you are hereby notified that you have received
this communication in error and that any review, disclosure, dissemination, distribution or copying of it or its
contents
----- Original Message -----
From: "David Smith" <dn...@cornell.edu>
To: "Tomcat Users List" <us...@tomcat.apache.org>
Sent: Thursday, November 16, 2006 3:17 PM
Subject: Re: Serving up applets
> Where are you putting the applet class? It can't be in WEB-INF because
> that isn't available to the client.
>
> --David
>
> Robert Harper wrote:
>
>>The browser is. The Java console and an error box is displayed by IE when it
>>tries to load the applet. I see nothing in the Tomcat logs. Either for
>>security problems or not finding the class.
>>
>>Robert S. Harper
>>Information Access Technology, Inc.
>>
>>-----Original Message-----
>>From: Martin Gainty [mailto:mgainty@hotmail.com]
>>Sent: Thursday, November 16, 2006 12:33 PM
>>To: Tomcat Users List
>>Subject: Re: Serving up applets
>>
>>Hi Robert
>>
>>Which class is throwing the ClassNotFoundException?
>>
>>M-
>>This e-mail communication and any attachments may contain confidential and
>>privileged information for the use of the
>>designated recipients named above. If you are not the intended recipient,
>>you are hereby notified that you have received
>>this communication in error and that any review, disclosure, dissemination,
>>distribution or copying of it or its
>>contents
>> ----- Original Message -----
>> From: Robert Harper
>> To: Tomcat Users
>> Sent: Thursday, November 16, 2006 12:45 PM
>> Subject: Serving up applets
>>
>>
>> This has probably been covered before but I'm having a hard time getting
>>an applet on a servlet generated page to load. I keep getting a
>>ClassNotFound exception even though the class is in several possible areas
>>for it to load. It is a package that is like
>>com.company.service.MyApplet.class. If Tomcat can provide the images, why
>>can't it find and send the applet class?
>>
>>
>>
>> Robert S. Harper
>> Senior Engineer
>> Information Access Technology, Inc.
>> 1100 East 6600 South, Suite 300
>> Salt Lake City Utah USA 84121-7411
>>
>> (801)265-8800 Ext. 255
>> FAX (801)265-8880
>>
>>
>>
>>
>>
>> This e-mail is intended only for the addressee and may contain
>>confidential and/or privileged information. Any review, retransmission, or
>>action taken upon this information by persons other than the intended
>>recipient is prohibited by law. If you received this communication in error,
>>please contact us immediately at 801-265-8800. Although this e-mail and any
>>attachments are believed to be free of any virus or other defect, it is the
>>responsibility of the recipient to ensure that anything received or opened
>>is virus free. No responsibility is accepted by IAT for any loss or damage
>>in the event that such a virus or defect exists.
>>
>>
>>
>>
>>
>>---------------------------------------------------------------------
>>To start a new topic, e-mail: users@tomcat.apache.org
>>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>For additional commands, e-mail: users-help@tomcat.apache.org
>>
>>
>>
>
>
> --
> =======================================
> David Smith
> Network Operations Supervisor
> Department of Entomology
> College of Agriculture & Life Sciences
> Cornell University
> 2132 Comstock Hall
> Ithaca, NY 14853
> Phone: 607.255.9571
> Fax: 607.255.0939
>
>
> ---------------------------------------------------------------------
> To start a new topic, e-mail: users@tomcat.apache.org
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
>
Re: Serving up applets
Posted by David Smith <dn...@cornell.edu>.
Where are you putting the applet class? It can't be in WEB-INF because
that isn't available to the client.
--David
Robert Harper wrote:
>The browser is. The Java console and an error box is displayed by IE when it
>tries to load the applet. I see nothing in the Tomcat logs. Either for
>security problems or not finding the class.
>
>Robert S. Harper
>Information Access Technology, Inc.
>
>-----Original Message-----
>From: Martin Gainty [mailto:mgainty@hotmail.com]
>Sent: Thursday, November 16, 2006 12:33 PM
>To: Tomcat Users List
>Subject: Re: Serving up applets
>
>Hi Robert
>
>Which class is throwing the ClassNotFoundException?
>
>M-
>This e-mail communication and any attachments may contain confidential and
>privileged information for the use of the
>designated recipients named above. If you are not the intended recipient,
>you are hereby notified that you have received
>this communication in error and that any review, disclosure, dissemination,
>distribution or copying of it or its
>contents
> ----- Original Message -----
> From: Robert Harper
> To: Tomcat Users
> Sent: Thursday, November 16, 2006 12:45 PM
> Subject: Serving up applets
>
>
> This has probably been covered before but I'm having a hard time getting
>an applet on a servlet generated page to load. I keep getting a
>ClassNotFound exception even though the class is in several possible areas
>for it to load. It is a package that is like
>com.company.service.MyApplet.class. If Tomcat can provide the images, why
>can't it find and send the applet class?
>
>
>
> Robert S. Harper
> Senior Engineer
> Information Access Technology, Inc.
> 1100 East 6600 South, Suite 300
> Salt Lake City Utah USA 84121-7411
>
> (801)265-8800 Ext. 255
> FAX (801)265-8880
>
>
>
>
>
> This e-mail is intended only for the addressee and may contain
>confidential and/or privileged information. Any review, retransmission, or
>action taken upon this information by persons other than the intended
>recipient is prohibited by law. If you received this communication in error,
>please contact us immediately at 801-265-8800. Although this e-mail and any
>attachments are believed to be free of any virus or other defect, it is the
>responsibility of the recipient to ensure that anything received or opened
>is virus free. No responsibility is accepted by IAT for any loss or damage
>in the event that such a virus or defect exists.
>
>
>
>
>
>---------------------------------------------------------------------
>To start a new topic, e-mail: users@tomcat.apache.org
>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>For additional commands, e-mail: users-help@tomcat.apache.org
>
>
>
--
=======================================
David Smith
Network Operations Supervisor
Department of Entomology
College of Agriculture & Life Sciences
Cornell University
2132 Comstock Hall
Ithaca, NY 14853
Phone: 607.255.9571
Fax: 607.255.0939
---------------------------------------------------------------------
To start a new topic, e-mail: users@tomcat.apache.org
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org
RE: Serving up applets
Posted by Robert Harper <ro...@iat-cti.com>.
The browser is. The Java console and an error box is displayed by IE when it
tries to load the applet. I see nothing in the Tomcat logs. Either for
security problems or not finding the class.
Robert S. Harper
Information Access Technology, Inc.
-----Original Message-----
From: Martin Gainty [mailto:mgainty@hotmail.com]
Sent: Thursday, November 16, 2006 12:33 PM
To: Tomcat Users List
Subject: Re: Serving up applets
Hi Robert
Which class is throwing the ClassNotFoundException?
M-
This e-mail communication and any attachments may contain confidential and
privileged information for the use of the
designated recipients named above. If you are not the intended recipient,
you are hereby notified that you have received
this communication in error and that any review, disclosure, dissemination,
distribution or copying of it or its
contents
----- Original Message -----
From: Robert Harper
To: Tomcat Users
Sent: Thursday, November 16, 2006 12:45 PM
Subject: Serving up applets
This has probably been covered before but I'm having a hard time getting
an applet on a servlet generated page to load. I keep getting a
ClassNotFound exception even though the class is in several possible areas
for it to load. It is a package that is like
com.company.service.MyApplet.class. If Tomcat can provide the images, why
can't it find and send the applet class?
Robert S. Harper
Senior Engineer
Information Access Technology, Inc.
1100 East 6600 South, Suite 300
Salt Lake City Utah USA 84121-7411
(801)265-8800 Ext. 255
FAX (801)265-8880
This e-mail is intended only for the addressee and may contain
confidential and/or privileged information. Any review, retransmission, or
action taken upon this information by persons other than the intended
recipient is prohibited by law. If you received this communication in error,
please contact us immediately at 801-265-8800. Although this e-mail and any
attachments are believed to be free of any virus or other defect, it is the
responsibility of the recipient to ensure that anything received or opened
is virus free. No responsibility is accepted by IAT for any loss or damage
in the event that such a virus or defect exists.
---------------------------------------------------------------------
To start a new topic, e-mail: users@tomcat.apache.org
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org
Re: Serving up applets
Posted by Martin Gainty <mg...@hotmail.com>.
Hi Robert
Which class is throwing the ClassNotFoundException?
M-
This e-mail communication and any attachments may contain confidential and privileged information for the use of the
designated recipients named above. If you are not the intended recipient, you are hereby notified that you have received
this communication in error and that any review, disclosure, dissemination, distribution or copying of it or its
contents
----- Original Message -----
From: Robert Harper
To: Tomcat Users
Sent: Thursday, November 16, 2006 12:45 PM
Subject: Serving up applets
This has probably been covered before but I'm having a hard time getting an applet on a servlet generated page to load. I keep getting a ClassNotFound exception even though the class is in several possible areas for it to load. It is a package that is like com.company.service.MyApplet.class. If Tomcat can provide the images, why can't it find and send the applet class?
Robert S. Harper
Senior Engineer
Information Access Technology, Inc.
1100 East 6600 South, Suite 300
Salt Lake City Utah USA 84121-7411
(801)265-8800 Ext. 255
FAX (801)265-8880
This e-mail is intended only for the addressee and may contain confidential and/or privileged information. Any review, retransmission, or action taken upon this information by persons other than the intended recipient is prohibited by law. If you received this communication in error, please contact us immediately at 801-265-8800. Although this e-mail and any attachments are believed to be free of any virus or other defect, it is the responsibility of the recipient to ensure that anything received or opened is virus free. No responsibility is accepted by IAT for any loss or damage in the event that such a virus or defect exists.
Re: Serving up applets
Posted by Christopher Schultz <ch...@christopherschultz.net>.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Robert,
Robert Harper wrote:
> Snippet of the HTML
>
> <applet code=com.iat.ctimpact.CTImpactStatisticsApplet.class height=300
> width=584>
> <param name=Link
> value='https://127.0.0.1:8443/ctimpact/servlet/CTImpact/?User=001TEST&List=C
> 001MAIN'>
> <param name=Timer value=5000>
> </applet>
You need to provide the "codebase" attribute for the <applet> tag, which
tells the browser where to find your code.
You can find more information here:
http://java.sun.com/j2se/1.4.2/docs/guide/misc/applet.html
or here:
http://java.sun.com/j2se/1.5.0/docs/guide/plugin/developer_guide/using_tags.html
Hope that helps.
- -chris
>
>
> Snippet from Java Console
> network: Connecting
> https://localhost/ctimpact/servlet/com/iat/ctimpact/CTImpactStatisticsApplet
> /class.class with proxy=DIRECT
> load: class com.iat.ctimpact.CTImpactStatisticsApplet.class not found.
> java.lang.ClassNotFoundException:
> com.iat.ctimpact.CTImpactStatisticsApplet.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
> basic: Exception: java.lang.ClassNotFoundException:
> com.iat.ctimpact.CTImpactStatisticsApplet.class
> java.lang.ClassNotFoundException:
> com.iat.ctimpact.CTImpactStatisticsApplet.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
> basic: Modality pushed
>
> I have plastered the class all over the place with the full path from the
> app root out. I started with it landing in the same location as the servlet
> code and then added it to the application root.
>
> Robert S. Harper
> Information Access Technology, Inc.
>
> -----Original Message-----
> From: Christopher Schultz [mailto:chris@christopherschultz.net]
> Sent: Thursday, November 16, 2006 1:20 PM
> To: Tomcat Users List
> Subject: Re: Serving up applets
>
> Robert,
>
> Robert Harper wrote:
>>> This has probably been covered before but I'm having a hard time getting
>>> an applet on a servlet generated page to load. I keep getting a
>>> ClassNotFound exception even though the class is in several possible
>>> areas for it to load. It is a package that is like
>>> com.company.service.MyApplet.class. If Tomcat can provide the images,
>>> why can't it find and send the applet class?
>
> Give us the relevant code from your HTML page that shows the applet.
> We'll start from there.
>
> -chris
>
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RE: Serving up applets
Posted by Robert Harper <ro...@iat-cti.com>.
Snippet of the HTML
<applet code=com.iat.ctimpact.CTImpactStatisticsApplet.class height=300
width=584>
<param name=Link
value='https://127.0.0.1:8443/ctimpact/servlet/CTImpact/?User=001TEST&List=C
001MAIN'>
<param name=Timer value=5000>
</applet>
Snippet from Java Console
network: Connecting
https://localhost/ctimpact/servlet/com/iat/ctimpact/CTImpactStatisticsApplet
/class.class with proxy=DIRECT
load: class com.iat.ctimpact.CTImpactStatisticsApplet.class not found.
java.lang.ClassNotFoundException:
com.iat.ctimpact.CTImpactStatisticsApplet.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
basic: Exception: java.lang.ClassNotFoundException:
com.iat.ctimpact.CTImpactStatisticsApplet.class
java.lang.ClassNotFoundException:
com.iat.ctimpact.CTImpactStatisticsApplet.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
basic: Modality pushed
I have plastered the class all over the place with the full path from the
app root out. I started with it landing in the same location as the servlet
code and then added it to the application root.
Robert S. Harper
Information Access Technology, Inc.
-----Original Message-----
From: Christopher Schultz [mailto:chris@christopherschultz.net]
Sent: Thursday, November 16, 2006 1:20 PM
To: Tomcat Users List
Subject: Re: Serving up applets
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Robert,
Robert Harper wrote:
> This has probably been covered before but I'm having a hard time getting
> an applet on a servlet generated page to load. I keep getting a
> ClassNotFound exception even though the class is in several possible
> areas for it to load. It is a package that is like
> com.company.service.MyApplet.class. If Tomcat can provide the images,
> why can't it find and send the applet class?
Give us the relevant code from your HTML page that shows the applet.
We'll start from there.
- -chris
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=Y7GR
-----END PGP SIGNATURE-----
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---------------------------------------------------------------------
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Re: Serving up applets
Posted by Christopher Schultz <ch...@christopherschultz.net>.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Robert,
Robert Harper wrote:
> This has probably been covered before but I’m having a hard time getting
> an applet on a servlet generated page to load. I keep getting a
> ClassNotFound exception even though the class is in several possible
> areas for it to load. It is a package that is like
> com.company.service.MyApplet.class. If Tomcat can provide the images,
> why can’t it find and send the applet class?
Give us the relevant code from your HTML page that shows the applet.
We'll start from there.
- -chris
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Version: GnuPG v1.4.5 (MingW32)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
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82Ap2/TYmjaPwlSVQMvtA1k=
=Y7GR
-----END PGP SIGNATURE-----
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