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https://issues.apache.org/jira/browse/LANG-1667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17398005#comment-17398005
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Gary D. Gregory commented on LANG-1667:
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The POM needs to enable access to reflection on Java 16 and above. Feel free to
provide a PR.
> Cannot Use ReflectionToStringBuilder for ArrayList on Java 16 Due to Module
> Access
> ----------------------------------------------------------------------------------
>
> Key: LANG-1667
> URL: https://issues.apache.org/jira/browse/LANG-1667
> Project: Commons Lang
> Issue Type: Bug
> Components: lang.builder.*
> Affects Versions: 3.12.0
> Environment: JDK 16
> Reporter: Andrew Thomas
> Priority: Major
>
> In Java 16, many classes in java.base module are not able to be made
> accessible due to access restrictions on the module. An example is ArrayList.
>
> In ToStringBuilderTest.testReflectionHierarchyArrayList(), the test fails
> with the following error:
> {code:java}
> java.lang.reflect.InaccessibleObjectException: Unable to make field private
> static final java.lang.Object[]
> java.util.ArrayList.DEFAULTCAPACITY_EMPTY_ELEMENTDATA accessible: module
> java.base does not "opens java.util" to unnamed module @3339ad8e{code}
>
> This is causing build failures for all open PRs.
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