PDE provides an Update Classpath wizard that quickly
updates the classpaths of multiple projects. The update will change the
JRE and compiler settings to best match the first execution environment
specified in each project's Manifest.
The wizard is available under the PDE Tools menu in the context menu of a
When updating classpaths, you may select any plug-in or fragment project
in your workspace.
All selected projects in your workspace will be selected in the
Update Classpath wizard by default.