RFR: JDK-8266856 Make <wbr> element void [v2]

[Pavel Rappo]

On Wed, 19 May 2021 18:58:17 GMT, Jonathan Gibbons <jjg at openjdk.org> wrote:

>> Please review a simple fix to treat `wbr` as a void element.
>
> Jonathan Gibbons has updated the pull request incrementally with one additional commit since the last revision:
> 
>   add test

test/langtools/jdk/javadoc/doclet/testVoidHtmlElements/TestVoidHtmlElements.java line 57:

> 55:             } catch (IllegalArgumentException e) {
> 56:             }
> 57:         }

Why do you do the check twice?

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PR: https://git.openjdk.java.net/jdk/pull/4098