dbeaver/pro#5630 fix npe

Author: HocKu7

server/bundles/io.cloudbeaver.server/src/io/cloudbeaver/service/sql/WebSQLContextInfo.java

@@ -202,6 +202,9 @@ public WebSQLQueryResults getQueryResults(@NotNull String resultId) throws DBWeb
 
     public void trySaveQueryResults(@NotNull WebSQLQueryResults[] resultsArray, int requestedLimit) {
 
+        if (resultsArray[0].getResultSet() == null) {
+            return;
+        }
         boolean isSingleResult = resultsArray.length == 1;
         int actualRowCount = isSingleResult ? resultsArray[0].getResultSet().getRows().length : 0;
         if (isSingleResult && actualRowCount < Math.min(requestedLimit, MAX_RESULT_SET_SIZE)) {