Making an inner class static.
diff --git a/src/org/apache/xpath/domapi/XPathEvaluatorImpl.java b/src/org/apache/xpath/domapi/XPathEvaluatorImpl.java
index 675be2a..55e24a8 100644
--- a/src/org/apache/xpath/domapi/XPathEvaluatorImpl.java
+++ b/src/org/apache/xpath/domapi/XPathEvaluatorImpl.java
@@ -64,7 +64,7 @@
 	 * requirement that if a null prefix resolver is used, an exception 
 	 * should only be thrown when an attempt is made to resolve a prefix.
 	 */
-	private class DummyPrefixResolver implements PrefixResolver {
+	private static class DummyPrefixResolver implements PrefixResolver {
 
 		/**
 		 * Constructor for DummyPrefixResolver.