Is there an easy way to navigate to the Class which currently implements a given extension point?
For example I am looking for org.eclipse.jdt.core.javaFormatter
but I can't find the default implementation.
Open the "Search > Search..." dialog and select the "Plug-in Search" tab.
Enter the extension point to search for in the "Search string" field - org.eclipse.jdt.core.javaFormatter in this case.
Set "Search for" to "Extension point", "Limit to" to "Refererences", "Scope" to "Workspace"