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Unhandled event loop exception [message #437033]

Tue, 20 September 2005 18:24

Eclipse User

Originally posted by: jweng.us.ibm.com

Hi,

We developed a plug-in on Eclipse 3.1. We use plug-in to call the
jasperreoprt class (We registered jasperreport class and all its jar files
as third party in plug-in). The jasperreport works fine in RAD (Rational
Application Developer) and RSA (Rational Software Application)
environment. When we run the plugin, we got the following exception:

Unhandled event loop exception
Reason:
net/sf/jasperreports/engine/fill/JRFillParameter

We check it in the .metadata/.log file. It says the above file could not
be found. We run the
Class.forName("net.sf.jasperreports.engine.fill.JRFillParameter ").getName()
and also check it in the Eclipse prospective, it is there. Does anyone
have any idea of this error? Thank you in advance for your input.

Thanks

John

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Re: Unhandled event loop exception [message #437044 is a reply to message #437033]

Wed, 21 September 2005 06:00

Reinhard Moser

Messages: 43
Registered: July 2009

Member

Hi John,

i had a similar problem. I am using log4j as logging facility in my
rcp application. I tried to create a new plugin from existing jars. I
add the new log4j-plugin to my dependencies. Also a
ClassNotFoundException occured. The only way to correct this was to add
log4j.jar to my plugin. I think it has something to do with the class
loaders. Each plugin has a own class loader

Hope this helps

Kind regards

Reinhard

John Weng schrieb:
> Hi,
>
> We developed a plug-in on Eclipse 3.1. We use plug-in to call the
> jasperreoprt class (We registered jasperreport class and all its jar
> files as third party in plug-in). The jasperreport works fine in RAD
> (Rational Application Developer) and RSA (Rational Software Application)
> environment. When we run the plugin, we got the following exception:
>
> Unhandled event loop exception
> Reason:
> net/sf/jasperreports/engine/fill/JRFillParameter
>
> We check it in the .metadata/.log file. It says the above file could not
> be found. We run the
> Class.forName("net.sf.jasperreports.engine.fill.JRFillParameter ").getName()
> and also check it in the Eclipse prospective, it is there. Does anyone
> have any idea of this error? Thank you in advance for your input.
>
> Thanks
>
> John
>

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Re: Unhandled event loop exception [message #437120 is a reply to message #437044]

Wed, 21 September 2005 15:24

Eclipse User

Originally posted by: jweng.us.ibm.com

Hi, Reinhard

Thank you for your input! I try to put the log4j.jar file in my plugin,
it still gave me the same error message. I use the log4j-1.2.8.jar. Which
versionof log4j file you use? Thank you again for your answer......

John

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Re: Unhandled event loop exception [message #437124 is a reply to message #437120]

Wed, 21 September 2005 22:41

Haris Peco

Messages: 1072
Registered: July 2009

Senior Member

John Weng wrote:

> Hi, Reinhard
>
> Thank you for your input! I try to put the log4j.jar file in my plugin,
> it still gave me the same error message. I use the log4j-1.2.8.jar. Which
> versionof log4j file you use? Thank you again for your answer......
>
> John

John
Problem with log4j is for log4j classes
You have another problem and it is eclipse classloader problem
search my thread in eclipse.platform
http://dev.eclipse.org/newslists/news.eclipse.platform/msg44 996.html.
I have solution with my classloaders, but correct is change in eclipse
classloader (ContextFinder)

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Re: Unhandled event loop exception [message #437128 is a reply to message #437120]

Thu, 22 September 2005 06:44

Reinhard Moser

Messages: 43
Registered: July 2009

Member

Hi John,

i am using log4j version 1.2.8. You have to add the library also in
your plugin.xml file under Runtime->Classpath.

Reinhard

John Weng schrieb:
> Hi, Reinhard
>
> Thank you for your input! I try to put the log4j.jar file in my plugin,
> it still gave me the same error message. I use the log4j-1.2.8.jar.
> Which versionof log4j file you use? Thank you again for your answer......
>
> John
>

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Re: Unhandled event loop exception [message #437141 is a reply to message #437124]

Thu, 22 September 2005 15:52

Eclipse User

Originally posted by: jweng.us.ibm.com

Thank you guys again for your input!!!

Snap, I believe the problem you described is what I encounter now. I never
use ClassLoader and ContextFinder before. Could you give me a simple
example to show me how the ClassLoader and ContextFinder associate with
the jasperreport on Eclipse? Thank you again for your help.

John

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Re: Unhandled event loop exception [message #437143 is a reply to message #437124]

Thu, 22 September 2005 16:10

Eclipse User

Originally posted by: jweng.us.ibm.com

Hi, Reihard, snpe

I got my jasperreport running on Eclipse 3.1. You guys are so helpful for
me. Thank you again for your input!!!

John

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Re: Unhandled event loop exception [message #437153 is a reply to message #437141]

Fri, 23 September 2005 02:44

Haris Peco

Messages: 1072
Registered: July 2009

Senior Member

John Weng wrote:

> Thank you guys again for your input!!!
>
> Snap, I believe the problem you described is what I encounter now. I never
> use ClassLoader and ContextFinder before. Could you give me a simple
> example to show me how the ClassLoader and ContextFinder associate with
> the jasperreport on Eclipse? Thank you again for your help.
>
> John

John,
have you solution for your problem ?

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