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circular dependency in RAP [message #635275]

Tue, 26 October 2010 09:03

fangjava

Messages: 8
Registered: July 2009

Junior Member

I get a error when I use Ant to build webappBuilder.xml in RAP

A cycle was detected when generating the classpath mas_1.0.0.201010261515, org.springframework.bundle.spring.beans_2.5.5, com.springsource.slf4j.org.apache.commons.logging_1.5.0, com.springsource.slf4j.api_1.5.0, com.springsource.slf4j.log4j_1.5.0, com.springsource.slf4j.api_1.5.0.

It's circular dependency , so I cann't build it .
How can I avoid this error??

Thanks in advance for any help.

[Updated on: Tue, 26 October 2010 09:06]

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Re: circular dependency in RAP [message #635345 is a reply to message #635275]

Tue, 26 October 2010 14:01

Cole Markham

Messages: 150
Registered: July 2009
Location: College Station, TX

Senior Member

We had the same problem with circular dependencies in our target platform. If you use the Export->"Deployable Features" or "Deployable Plugins and Fragments" wizard, then you will see an option to "Allow for binary cycles in the target platform". Verify that you are able to export the feature this way.

http://ccmcomputing.net/export-features.png

Once you confirm that this will allow you to build, you will run up against this bug (https://bugs.eclipse.org/bugs/show_bug.cgi?id=308070). The ant task used in webappBuilder.xml runs the exact same code as the wizard, but does not expose the additional flags. The only solution is to patch the PDE plugin in your Eclipse installation.

There are a few alternative build options that I think are easier to get working.

Using normal eclipse products, supports binary cycles out of the box:
http://wiki.eclipse.org/RAP/WAR_Deployment_with_products

A special WAR product which was developed this summer. We use a modified version of this which supports binary cycles. I'm not sure if that fix made it into the main release.
http://wiki.eclipse.org/RAP/Equinox_WAR_products
Our changes are on this bug, but the patch is probably out of date with CVS head: https://bugs.eclipse.org/bugs/show_bug.cgi?id=322281

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