diff --git a/pmd/src/net/sourceforge/pmd/Namespace.java b/pmd/src/net/sourceforge/pmd/Namespace.java
index 94f3658bb9..d0fc9f01ba 100644
--- a/pmd/src/net/sourceforge/pmd/Namespace.java
+++ b/pmd/src/net/sourceforge/pmd/Namespace.java
@@ -36,7 +36,6 @@ import java.util.Stack;
  * That way the scopes work out nicely and inner classes can be nested arbitrarily deep.
  */
 public class Namespace {
-private int x;
     private Stack tables = new Stack();
 
     public void addTable() {
diff --git a/pmd/src/net/sourceforge/pmd/SymbolTable.java b/pmd/src/net/sourceforge/pmd/SymbolTable.java
index b66c546b85..b6b8590505 100644
--- a/pmd/src/net/sourceforge/pmd/SymbolTable.java
+++ b/pmd/src/net/sourceforge/pmd/SymbolTable.java
@@ -5,15 +5,12 @@
  */
 package net.sourceforge.pmd;
 
-import java.util.HashMap;
-import java.util.List;
-import java.util.ArrayList;
-import java.util.Iterator;
+import java.util.*;
 
 public class SymbolTable {
 
     private SymbolTable parent;
-    private HashMap usageCounts = new HashMap();
+    private Map usageCounts = new HashMap();
 	private static final Integer ZERO = new Integer(0);
 	private static final Integer ONE = new Integer(1);