statements are closed in case of exception

Author: vlastimil-dolejs

src/main/java/org/apache/ibatis/executor/BatchExecutor.java

@@ -150,6 +150,9 @@ public List<BatchResult> doFlushStatements(boolean isRollback) throws SQLExcepti
       }
       return results;
     } finally {
+      for (Statement stmt : statementList) {
+        closeStatement(stmt);
+      }
       currentSql = null;
       statementList.clear();
       batchResultList.clear();