Bug 319961 Reset perspective fails with parts moved into the editor area
1. Start a fresh e4 workbench 2. Move the Javadoc view into the editor area 3. Reset the perspective 4. Open the Javadoc view Result: The Javadoc view is opened in the editor area. In the bottom stack there still is a tab for the Javadoc view; this tab can be clicked, but it will activate the view in the editor area. The toolbar, however, is shown in the bottom stack.
bundles/org.eclipse.e4.ui.workbench/src/org/eclipse/e4/ui/workbench/modeling/EPartService.java
*/
	public Collection<MPart> getParts();
	/**
	 * Returns the active part.
	 * 
	 * @return an active part within the scope of this service, or <code>null</code> if no part is
	 *         currently active
	 */
	public MPart getActivePart();
	/**
	 * Returns whether the specified part is currently visible to the end user.
	 * 
	 * @param part
	 *            the part to check
	 * @return <code>true</code> if the part is currently visible, <code>false</code> otherwise
	 */
	public boolean isPartVisible(MPart part);
	/**
	 * Creates a new part of the given id.
	 * 
	 * @param id
	 *            the identifier of the part, must not be <code>null</code>
	 * @return a new part of the given id, or <code>null</code> if no part descriptors can be found
	 *         that match the specified id
	 */
	public MPart createPart(String id);
	/**
	 * Creates a new placeholder for a part of the given id.
	 * 
	 * @param id