Maven-based build of XEclipse requires customization to work out of the box

The build doesn't work if you don't use a XWiki-aware repository manager or the XWiki-related artifacts aren't already in your local Maven repository.

This can be fixed by adding the required repository definitions to the relevant POMs.

The trunk-pom.xml.patch adds the snapshots repository to org.xwiki.eclipse.rcp/pom.xml in the trunk. This patch should be applied to http://svn.xwiki.org/svnroot/xwiki/xeclipse/trunk/plugins/org.xwiki.eclipse.rcp/pom.xml.

The sandbox-pom.xml.patch adds the snapshots repository to org.xwiki.eclipse.rcp/pom.xml in the sandbox. This patch should be applied to http://svn.xwiki.org/svnroot/xwiki/contrib/sandbox/xeclipse/org.xwiki.eclipse.rcp/pom.xml.

The sandbox-copy-dependencies-pom.xml.patch adds the externals, the releases and the snapshots repository to copy-dependencies-pom.xml in the sandbox. This patch should be applied to http://svn.xwiki.org/svnroot/xwiki/contrib/sandbox/xeclipse/org.xwiki.eclipse.ui/copy-dependencies-pom.xml.

The sandbox-build.properties.patch adds xwiki-core-properties-2.0-SNAPSHOT.jar to the OSGi bundle org.xwiki.eclipse.ui_1.2.0.RC1.jar in the sandbox. This prevents NoClassDefFoundErrors at runtime. This patch should be applied to http://svn.xwiki.org/svnroot/xwiki/contrib/sandbox/xeclipse/org.xwiki.eclipse.ui/build.properties.

The sandbox-MANIFEST.MF.patch does the same as the previous one but for the MANIFEST.MF in the sandbox. This patch should be applied to http://svn.xwiki.org/svnroot/xwiki/contrib/sandbox/xeclipse/org.xwiki.eclipse.ui/META-INF/MANIFEST.MF.

I also added some detailed build instructions to the draft space. It can be found here: Building XEclipse RCP with Maven.