diff --git a/dev/core/src/com/google/gwt/dev/resource/impl/PathPrefix.java b/dev/core/src/com/google/gwt/dev/resource/impl/PathPrefix.java
index 25537bb..c844d86 100644
--- a/dev/core/src/com/google/gwt/dev/resource/impl/PathPrefix.java
+++ b/dev/core/src/com/google/gwt/dev/resource/impl/PathPrefix.java
@@ -135,6 +135,11 @@
     return shouldReroot;
   }
 
+  @Override
+  public String toString() {
+    return prefix + (shouldReroot ? "**" : "*") + (filter == null ? "" : "?");
+  }
+
   private void assertValidPrefix(String prefix) {
     assert (prefix != null);
     assert ("".equals(prefix) || (!prefix.startsWith("/") && prefix.endsWith("/"))) : "malformed prefix";
diff --git a/dev/core/src/com/google/gwt/dev/resource/impl/PathPrefixSet.java b/dev/core/src/com/google/gwt/dev/resource/impl/PathPrefixSet.java
index d0bf0d2..cbb2a9a 100644
--- a/dev/core/src/com/google/gwt/dev/resource/impl/PathPrefixSet.java
+++ b/dev/core/src/com/google/gwt/dev/resource/impl/PathPrefixSet.java
@@ -91,15 +91,15 @@
   }
 
   /**
-   * The sequence number in which the PathPrefix was added.
-   */
-  private int size = 0;
-
-  /**
    * Map of pathPrefix => the sequence number when the pathPrefix was added.
    */
   private final Map<PathPrefix, Integer> prefixes = new HashMap<PathPrefix, Integer>();
+
   private final TrieNode rootTrieNode = new TrieNode("/");
+  /**
+   * The sequence number in which the PathPrefix was added.
+   */
+  private int size = 0;
 
   /**
    * @param prefix the prefix to add
@@ -264,7 +264,7 @@
 
   /**
    * Returns true if the first pathPrefix is inserted into the PathPrefixSet
-   * after the second pathPrefix.  Also, rereooting PathPrefixes take priority
+   * after the second pathPrefix. Also, rereooting PathPrefixes take priority
    * over non-rerooting ones (ie, super-source).
    */
   public boolean secondPrefixOverridesFirst(PathPrefix prefix1,
@@ -279,6 +279,11 @@
     return rank2 > rank1;
   }
 
+  @Override
+  public String toString() {
+    return rootTrieNode.toString();
+  }
+
   public Collection<PathPrefix> values() {
     return Collections.unmodifiableCollection(prefixes.keySet());
   }
diff --git a/dev/core/test/com/google/gwt/dev/resource/impl/ResourceOracleImplTest.java b/dev/core/test/com/google/gwt/dev/resource/impl/ResourceOracleImplTest.java
index 4144e28..5473026 100644
--- a/dev/core/test/com/google/gwt/dev/resource/impl/ResourceOracleImplTest.java
+++ b/dev/core/test/com/google/gwt/dev/resource/impl/ResourceOracleImplTest.java
@@ -303,7 +303,7 @@
         new ClassPathEntry[] {cpe1, cpe2}, pp1, pp2);
   }
 
-  /*
+  /**
    * Ensure refresh is stable when multiple classpaths + multiple path prefixes
    * all include the same resource.
    */