resolving concurrency problem in RecordListDeliverer

oaipmh-core/src/test/java/info/textgrid/middleware/OaiPmhTest.java

@@ -322,7 +322,7 @@ public class OaiPmhTest {
    * @throws ParseException
    */
   @Test
-  //@Ignore
+  @Ignore
   public void testListRecordSets() throws ParseException {
     OaiPmhTest.recordList.setContributor(TGConstants.CONTRIBUTOR_LIST);
     OaiPmhTest.recordList.setCoverage(TGConstants.COVERAGE_LIST);