Patch is definitely the right construct to use since you just can't change
everything in the dependency hierarchy chain (consumers of wst).
The best way to debug this is to actually use the p2 director app to install
your patch:
eclipse -application org.eclipse.equinox.p2.director -installIU MyPatch
-repository ....
This will provide you a detailed explanation message as to why it can not be
happening. You are not getting the same error message because the p2 UI does
not "force" the install of a patch in the exact same way the director app does.
There are several possibilities as to why the patch does not apply
- The plugin is included by another feature
- Some dependency ranges are preventing your patched version of the plugin to
install
- The patch does not patch the right version of the feature (the patch cerated
in the UI needs to match the specific version (to the qualifier) of the
feature, note that you can also tweak the metadata by hand to support ranges in
there)
One final thing, when it comes to put this in production, know that a patch can
actually be included in another feature making its installation transparent.
And, don't forget to open a bug against WTP to attach your change.
On 2011-03-15, at 8:56 AM, Patric Rufflar wrote:
> Hello everyone,
>
> I'd like to fix a bug in an official eclipse plugin
> (org.eclipse.jsdt.jsp.core, part of the WTP).
> I locally changed the source code and debugged it - everything works fine.
>
> Now I'd like to propagate this change to my eclipse installation, but I am
> facing problems.
>
> To achieve this I created and installed a feature patch.
>
> The feature patch has been installed successfully but -unfortunately - not
> the included patched plugin.
> The original/unpatched version of the plugin is still installed and active
> according to the "Eclipse Installation Details".
> When looking at the plugins folder I cannot see the jar of the patched plugin.
>
> I'd like to know:
> - Why? what I am doing wrong?
> - Does this something have to do with signing of the official plugins?
> - Is there a log to see why the patched plugin has not been installed?
> - Is a feature patch the best way to locally modify an official eclipse
> plugin/feature?
>
> I really appreciate your help.
>
> Thank you and best regards,
> Patric
>
>
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