beyond1920 commented on a change in pull request #8035: 
[FLINK-11975][table-planner-blink] Support to run a sql query : 'SELECT * FROM 
(VALUES (1, 2, 3)) T(a, b, c)'
URL: https://github.com/apache/flink/pull/8035#discussion_r268476780
 
 

 ##########
 File path: 
flink-table/flink-table-runtime-blink/src/main/java/org/apache/flink/table/generated/GeneratedClass.java
 ##########
 @@ -49,10 +49,13 @@ protected GeneratedClass(String className, String code, 
Object[] references) {
        @SuppressWarnings("unchecked")
        public T newInstance(ClassLoader classLoader) {
                try {
-                       return (T) 
compile(classLoader).getConstructor(Object[].class)
-                                       // Because 
Constructor.newInstance(Object... initargs), we need to load
-                                       // references into a new Object[], 
otherwise it cannot be compiled.
-                                       .newInstance(new Object[] {references});
+                       if (references.length > 0) {
 
 Review comment:
   I misunderstood before, thanks for reminding. 

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