[GitHub] [flink] zentol commented on a diff in pull request #21153: [hotfix][runtime] Remove private methods

[GitBox <gi...@apache.org>]

zentol commented on code in PR #21153:
URL: https://github.com/apache/flink/pull/21153#discussion_r1009309372


##########
flink-runtime/src/main/java/org/apache/flink/runtime/state/VoidNamespace.java:
##########
@@ -56,13 +54,4 @@ public boolean equals(Object obj) {
     public String toString() {
         return getClass().getSimpleName();
     }
-
-    // ------------------------------------------------------------------------
-    //  Singleton serialization
-    // ------------------------------------------------------------------------
-
-    // make sure that we preserve the singleton properly on serialization
-    private Object readResolve() throws ObjectStreamException {

Review Comment:
   This is wrong. https://docs.oracle.com/javase/7/docs/platform/serialization/spec/input.html#5903



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