Bug 27075 ViewerSorter could maybe lazily initialize Collator
calling JavaElementSorter creates a lot of new objects (ViewerSorter calls Collator.getInstance() which is the culprit) so maybe fSorter could be initialized lazily
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/JavaElementSorter.java
import org.eclipse.jface.viewers.ContentViewer;
import org.eclipse.jface.viewers.IBaseLabelProvider;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerSorter;
import org.eclipse.jdt.core.Flags;
import org.eclipse.jdt.core.IField;
import org.eclipse.jdt.core.IInitializer;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IMethod;
import org.eclipse.jdt.core.IPackageFragment;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.core.Signature;
import org.eclipse.jdt.internal.corext.util.JavaModelUtil;
import org.eclipse.jdt.internal.ui.JavaPlugin;
import org.eclipse.jdt.internal.ui.preferences.MembersOrderPreferencePage;
/**
 * Sorter for Java elements. Ordered by element category, then by element name. 
 * Package fragment roots are sorted as ordered on the classpath.
 * 
 * <p>
 * This class may be instantiated; it is not intended to be subclassed.
 * </p>
 * 
 * @since 2.0
 */
public class JavaElementSorter extends ViewerSorter {
	
	private static final int JAVAPROJECTS= 1;