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diff --git a/case-study/jdt-before/ui/org/eclipse/jdt/internal/ui/javaeditor/selectionactions/StructureSelectPreviousAction.java b/case-study/jdt-before/ui/org/eclipse/jdt/internal/ui/javaeditor/selectionactions/StructureSelectPreviousAction.java
new file mode 100644
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+++ b/case-study/jdt-before/ui/org/eclipse/jdt/internal/ui/javaeditor/selectionactions/StructureSelectPreviousAction.java
@@ -0,0 +1,107 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2011 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.jdt.internal.ui.javaeditor.selectionactions;
+
+import org.eclipse.ui.PlatformUI;
+
+import org.eclipse.jdt.core.ISourceRange;
+import org.eclipse.jdt.core.ISourceReference;
+import org.eclipse.jdt.core.JavaModelException;
+import org.eclipse.jdt.core.dom.ASTNode;
+
+import org.eclipse.jdt.internal.corext.dom.GenericVisitor;
+import org.eclipse.jdt.internal.corext.dom.SelectionAnalyzer;
+
+import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
+import org.eclipse.jdt.internal.ui.javaeditor.JavaEditor;
+
+public class StructureSelectPreviousAction extends StructureSelectionAction {
+
+	private static class PreviousNodeAnalyzer extends GenericVisitor {
+		private final int fOffset;
+		private ASTNode fPreviousNode;
+		private PreviousNodeAnalyzer(int offset) {
+			super(true);
+			fOffset= offset;
+		}
+		public static ASTNode perform(int offset, ASTNode lastCoveringNode) {
+			PreviousNodeAnalyzer analyzer= new PreviousNodeAnalyzer(offset);
+			lastCoveringNode.accept(analyzer);
+			return analyzer.fPreviousNode;
+		}
+		@Override
+		protected boolean visitNode(ASTNode node) {
+			int start= node.getStartPosition();
+			int end= start + node.getLength();
+			if (end == fOffset) {
+				fPreviousNode= node;
+				return true;
+			} else {
+				return (start < fOffset && fOffset < end);
+			}
+		}
+	}
+
+	public StructureSelectPreviousAction(JavaEditor editor, SelectionHistory history) {
+		super(SelectionActionMessages.StructureSelectPrevious_label, editor, history);
+		setToolTipText(SelectionActionMessages.StructureSelectPrevious_tooltip);
+		setDescription(SelectionActionMessages.StructureSelectPrevious_description);
+		PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.STRUCTURED_SELECT_PREVIOUS_ACTION);
+	}
+
+	/*
+	 * This constructor is for testing purpose only.
+	 */
+	public StructureSelectPreviousAction() {
+	}
+
+	/* non java doc
+	 * @see StructureSelectionAction#internalGetNewSelectionRange(ISourceRange, ICompilationUnit, SelectionAnalyzer)
+	 */
+	@Override
+	ISourceRange internalGetNewSelectionRange(ISourceRange oldSourceRange, ISourceReference sr, SelectionAnalyzer selAnalyzer) throws JavaModelException{
+		if (oldSourceRange.getLength() == 0 && selAnalyzer.getLastCoveringNode() != null) {
+			ASTNode previousNode= PreviousNodeAnalyzer.perform(oldSourceRange.getOffset(), selAnalyzer.getLastCoveringNode());
+			if (previousNode != null)
+				return getSelectedNodeSourceRange(sr, previousNode);
+		}
+		ASTNode first= selAnalyzer.getFirstSelectedNode();
+		if (first == null)
+			return getLastCoveringNodeRange(oldSourceRange, sr, selAnalyzer);
+
+		ASTNode parent= first.getParent();
+		if (parent == null)
+			return getLastCoveringNodeRange(oldSourceRange, sr, selAnalyzer);
+
+		ASTNode previousNode= getPreviousNode(parent, selAnalyzer.getSelectedNodes()[0]);
+		if (previousNode == parent)
+			return getSelectedNodeSourceRange(sr, parent);
+
+		int offset= previousNode.getStartPosition();
+		int end= oldSourceRange.getOffset() + oldSourceRange.getLength() - 1;
+		return StructureSelectionAction.createSourceRange(offset, end);
+	}
+
+	private static ASTNode getPreviousNode(ASTNode parent, ASTNode node){
+		ASTNode[] siblingNodes= StructureSelectionAction.getSiblingNodes(node);
+		if (siblingNodes == null || siblingNodes.length == 0)
+			return parent;
+		if (node == siblingNodes[0]) {
+			return parent;
+		} else {
+			int index= StructureSelectionAction.findIndex(siblingNodes, node);
+			if (index < 1)
+				return parent;
+			return siblingNodes[index - 1];
+		}
+	}
+}
+