check shutdown for early termination in 'wait for state'

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1426840 13f79535-47bb-0310-9956-ffa450edef68

solr/core/src/java/org/apache/solr/handler/admin/CoreAdminHandler.java

@@ -941,6 +941,11 @@ public class CoreAdminHandler extends RequestHandlerBase {
                   + state + " live:" + live);
         }
         
+        if (coreContainer.isShutDown()) {
+          throw new SolrException(ErrorCode.BAD_REQUEST,
+              "Solr is shutting down");
+        }
+        
         // solrcloud_debug
 //        try {;
 //        LocalSolrQueryRequest r = new LocalSolrQueryRequest(core, new