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https://issues.apache.org/jira/browse/SLING-10788?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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A. J. David Bosschaert resolved SLING-10788.
--------------------------------------------
Resolution: Fixed
> ClassCastException is thrown when calling Json.createReader from a launcher
> extension
> -------------------------------------------------------------------------------------
>
> Key: SLING-10788
> URL: https://issues.apache.org/jira/browse/SLING-10788
> Project: Sling
> Issue Type: Bug
> Components: Feature Model
> Affects Versions: Feature Model Launcher 1.1.22
> Reporter: A. J. David Bosschaert
> Assignee: A. J. David Bosschaert
> Priority: Major
> Fix For: Feature Model Launcher 1.1.24
>
>
> A ClassCastException is thrown when calling Json.createReader (JSON-P) from a
> launcher extension. The following stack trace shows the exception.
> {code}
> [ERROR] Error while running launcher:
> org.apache.johnzon.core.JsonProviderImpl not found
> javax.json.JsonException: org.apache.johnzon.core.JsonProviderImpl not found
> at javax.json.spi.JsonProvider.doLoadProvider(JsonProvider.java:118)
> at javax.json.spi.JsonProvider.provider(JsonProvider.java:89)
> at javax.json.Json.createReader(Json.java:88)
> ...
> at
> org.apache.sling.feature.launcher.impl.Bootstrap.run(Bootstrap.java:268)
> at
> org.apache.sling.feature.launcher.impl.Bootstrap.run(Bootstrap.java:170)
> at org.apache.sling.feature.launcher.impl.Main.main(Main.java:402)
> Caused by: java.lang.ClassCastException: Cannot cast
> org.apache.johnzon.core.JsonProviderImpl to javax.json.spi.JsonProvider
> at java.base/java.lang.Class.cast(Class.java:3605)
> at javax.json.spi.JsonProvider.doLoadProvider(JsonProvider.java:116)
> {code}
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