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diff --git a/src/proguard/obfuscate/NameAndTypeShrinker.java b/src/proguard/obfuscate/NameAndTypeShrinker.java
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+++ b/src/proguard/obfuscate/NameAndTypeShrinker.java
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+/*
+ * ProGuard -- shrinking, optimization, obfuscation, and preverification
+ *             of Java bytecode.
+ *
+ * Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+package proguard.obfuscate;
+
+import proguard.classfile.*;
+import proguard.classfile.constant.Constant;
+import proguard.classfile.editor.ConstantPoolRemapper;
+import proguard.classfile.visitor.ClassVisitor;
+
+
+/**
+ * This ClassVisitor removes NameAndType constant pool entries
+ * that are not marked as being used.
+ *
+ * @see NameAndTypeUsageMarker
+ *
+ * @author Eric Lafortune
+ */
+public class NameAndTypeShrinker implements ClassVisitor
+{
+    private int[]                constantIndexMap;
+    private final ConstantPoolRemapper constantPoolRemapper = new ConstantPoolRemapper();
+
+
+    // Implementations for ClassVisitor.
+
+    public void visitProgramClass(ProgramClass programClass)
+    {
+        // Shift the used constant pool entries together, filling out the
+        // index map.
+        programClass.u2constantPoolCount =
+            shrinkConstantPool(programClass.constantPool,
+                               programClass.u2constantPoolCount);
+
+
+        // Remap all constant pool references.
+        constantPoolRemapper.setConstantIndexMap(constantIndexMap);
+        constantPoolRemapper.visitProgramClass(programClass);
+    }
+
+
+    public void visitLibraryClass(LibraryClass libraryClass)
+    {
+    }
+
+
+    // Small utility methods.
+
+    /**
+     * Removes all NameAndType entries that are not marked as being used
+     * from the given constant pool.
+     * @return the new number of entries.
+     */
+    private int shrinkConstantPool(Constant[] constantPool, int length)
+    {
+        // Create a new index map, if necessary.
+        if (constantIndexMap == null ||
+            constantIndexMap.length < length)
+        {
+            constantIndexMap = new int[length];
+        }
+
+        int     counter = 1;
+        boolean isUsed  = false;
+
+        // Shift the used constant pool entries together.
+        for (int index = 1; index < length; index++)
+        {
+            constantIndexMap[index] = counter;
+
+            Constant constant = constantPool[index];
+
+            // Don't update the flag if this is the second half of a long entry.
+            if (constant != null)
+            {
+                isUsed = constant.getTag() != ClassConstants.CONSTANT_NameAndType ||
+                         NameAndTypeUsageMarker.isUsed(constant);
+            }
+
+            if (isUsed)
+            {
+                constantPool[counter++] = constant;
+            }
+        }
+
+        // Clear the remaining constant pool elements.
+        for (int index = counter; index < length; index++)
+        {
+            constantPool[index] = null;
+        }
+
+        return counter;
+    }
+}