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Posted to dev@johnzon.apache.org by "Markus Karg (Jira)" <ji...@apache.org> on 2019/10/07 13:34:00 UTC
[jira] [Closed] (JOHNZON-276) StackOverflowError in
DefaultPropertyVisibilityStrategy
[ https://issues.apache.org/jira/browse/JOHNZON-276?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Markus Karg closed JOHNZON-276.
-------------------------------
Resolution: Won't Fix
According to general concensus among the contributors, this issue will not get fixed.
> StackOverflowError in DefaultPropertyVisibilityStrategy
> -------------------------------------------------------
>
> Key: JOHNZON-276
> URL: https://issues.apache.org/jira/browse/JOHNZON-276
> Project: Johnzon
> Issue Type: Bug
> Components: JSON-B
> Affects Versions: 1.2.1
> Reporter: Markus Karg
> Priority: Major
> Time Spent: 3.5h
> Remaining Estimate: 0h
>
> The following code produces a StackOverflowError:
> @JsonVisibility(DefaultPropertyVisibilityStrategy.class)
> public final class C {
> @JsonProperty private boolean foo;
> }
> The problem is caused by the fact that this strategy tries to compare "this" by "==" with a _new instance_ of itself, which certainly fails, because the new copy is definitively a different reference than the one currently executed and instantiated due to the class annotation.
> The fix is simple: Adding an equals method just comparing the class type (as the strategy has no members other than a cache), and calling that instead of "==".
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