Bug 105926 [Formatter] Exporting Unnamed profile fails silently
When attempting to export an "Unnamed Profile" from the Project Preferences > Java Code Style > Formatter it will fail silently when it gets to ProfileStore.writeProfilesToStream(): for(final Iterator iter= profiles.iterator(); iter.hasNext();) { final Profile profile= (Profile)iter.next(); if (profile.isProfileToSave()) { final Element profileElement= createProfileElement(profile, document); rootElement.appendChild(profileElement); } } Since the unnamed profile is considered a shared profile and will write an xml file with the content. <?xml version="1.0" encoding="UTF-8"?> <profiles version="8"/> Instead of silently generating an xml file with no content it should rather throw up an error/warning or force a rename dialog. I'll try working on a patch to this respect.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/formatter/CodeFormatterConfigurationBlock.java
public PreviewController() {
			fProfileManager.addObserver(this);
			fJavaPreview.setWorkingValues(fProfileManager.getSelected().getSettings());
			fJavaPreview.update();
		}
		
		public void update(Observable o, Object arg) {
			final int value= ((Integer)arg).intValue();
			switch (value) {
				case ProfileManager.PROFILE_CREATED_EVENT:
				case ProfileManager.PROFILE_DELETED_EVENT:
				case ProfileManager.SELECTION_CHANGED_EVENT:
				case ProfileManager.SETTINGS_CHANGED_EVENT:
					fJavaPreview.setWorkingValues(((ProfileManager)o).getSelected().getSettings());
					fJavaPreview.update();
			}
		}
		
	}
	
	/**
	 * Some Java source code used for preview.