[infinispan-issues] [JBoss JIRA] (ISPN-10862) SpringCache unwrapping NullValue singleton fails with Java Serialization

[Ryan Emerson (Jira)]

     [ https://issues.jboss.org/browse/ISPN-10862?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ryan Emerson updated ISPN-10862:
--------------------------------
    Status: Open  (was: New)


> SpringCache unwrapping NullValue singleton fails with Java Serialization
> ------------------------------------------------------------------------
>
>                 Key: ISPN-10862
>                 URL: https://issues.jboss.org/browse/ISPN-10862
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Spring Integration
>    Affects Versions: 10.0.0.Final
>            Reporter: Ryan Emerson
>            Assignee: Ryan Emerson
>            Priority: Blocker
>
> Our spring integration makes use of the {{NullValue.NULL}} singleton when wrapping null values, however the singleton semantics are not respected when Java Serialization is used as this was previously enforced by a {{Externalizer}} implementation.
> Therefore, the NullValue wrapper is never unwrapped.
> .SpringCache
>    private ValueWrapper wrap(Object value) {
>       if (value == null) {
>          return null;
>       }
>       if (value == NullValue.NULL) {
>          return NullValue.NULL;
>       }
>       return new SimpleValueWrapper(value);
>    }
>    private <T> T unwrapNull(Object value) {
>       if (value == NullValue.NULL) {
>          return null;
>       }
>       return (T) value;
>    }
> {code}



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