Bug 267173 [Linked Resources] Data loss when replacing one linked resource with another using drag and drop
Build ID: HEAD Steps To Reproduce: I've got a Group with some links to folders. If I drag and drop a linked folder from another workspace path, into the group, I get the dialog saying: "project/group/linked_folder" already exists. Do you wish to overwrite? Folder contents will be merged existing files will be overwritten. In my case I had selected a bunch of linked resources to drag into the group, (some of which are identical to the links already in the group). So I pressed "Yes To All". The result is an error: "Resource is out of sync with the filesystem: ..." The move operation has actually tried to replace a file with itself, and this fails (and the resulting file is empty...). I find this completely counter-intuitive. If I'm replacing a linked resource with another, I don't want a recursive merge. I want to replace the link, just like aliases in a filesystem...
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/ide/undo/WorkspaceUndoUtil.java
shell);
			}
			return status.isOK();
		}
		return true;
	}
	/**
	 * Return the shell described by the specified adaptable, or the active
	 * shell if no shell has been specified in the adaptable.
	 * 
	 * @param uiInfo
	 *            the IAdaptable (or <code>null</code>) provided by the
	 *            caller in order to supply UI information for prompting the
	 *            user if necessary. When this parameter is not
	 *            <code>null</code>, it contains an adapter for the
	 *            org.eclipse.swt.widgets.Shell.class
	 * 
	 * @return the Shell that can be used to show information
	 */
	public static Shell getShell(IAdaptable uiInfo) {
		if (uiInfo != null) {
			Shell shell = (Shell) uiInfo.getAdapter(Shell.class);
			if (shell != null) {
				return shell;
			}
		}
		return PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();
	}
}