aucun dit :
<extension
point="org.eclipse.ui.popupMenus">
<objectContribution
objectClass="org.eclipse.core.resources.IFile"
id="popup.contribution1">
<menu
label="New Submenu"
path="additions"
id="popup.menu1">
<separator
name="group1">
</separator>
</menu>
<action
label="New Action"
class="popup.actions.NewAction"
menubarPath="popup.menu1/group1"
enablesFor="1"
id="popup.newAction">
</action>
</objectContribution>
</extension>

aucun dit :
package popup.actions;

import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPart;

public class NewAction implements IObjectActionDelegate {

/**
* Constructor for Action1.
*/
public NewAction() {
super();
}

/**
* @see IObjectActionDelegate#setActivePart(IAction, IWorkbenchPart)
*/
public void setActivePart(IAction action, IWorkbenchPart targetPart) {
}

/**
* @see IActionDelegate#run(IAction)
*/
public void run(IAction action) {
Shell shell = new Shell();
MessageDialog.openInformation(
shell,
"Test_popup Plug-in",
"New Action was executed.");
}

/**
* @see IActionDelegate#selectionChanged(IAction, ISelection)
*/
public void selectionChanged(IAction action, ISelection selection) {
}

}