Index: /home/dave/code/svn/jdo/trunk/tck20/src/java/org/apache/jdo/tck/util/signature/SignatureVerifier.java
===================================================================
--- /home/dave/code/svn/jdo/trunk/tck20/src/java/org/apache/jdo/tck/util/signature/SignatureVerifier.java	(revision 538651)
+++ /home/dave/code/svn/jdo/trunk/tck20/src/java/org/apache/jdo/tck/util/signature/SignatureVerifier.java	(working copy)
@@ -269,7 +269,7 @@
         // load class
         try {
             final String r = TypeHelper.reflectionTypeName(userTypeName);
-            cls = classLoader.loadClass(r);
+            cls = Class.forName(r, false, classLoader);
             loading.add(userTypeName);
         } catch (LinkageError err) {
             handleNotLoading(err);