[jira] [Commented] (SUREFIRE-1652) surefire/failsafe fails with --enable-preview in java 12

["Steven Schlansker (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SUREFIRE-1652?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16804132#comment-16804132 ] 

Steven Schlansker commented on SUREFIRE-1652:
---------------------------------------------

We are able to reproduce this problem in our environment – setting the forkCount to 0 gets us moving temporarily but sacrifices both speed and test isolation so is not a real solution.

> surefire/failsafe fails with --enable-preview in java 12
> --------------------------------------------------------
>
>                 Key: SUREFIRE-1652
>                 URL: https://issues.apache.org/jira/browse/SUREFIRE-1652
>             Project: Maven Surefire
>          Issue Type: Bug
>          Components: Maven Failsafe Plugin, Maven Surefire Plugin
>    Affects Versions: 3.0.0-M3
>            Reporter: Krzysztof Krason
>            Priority: Blocker
>
> Minimal example: [https://github.com/krzyk/lombok-jdk10-example]
>  
> When I run the build `mvn clean verify` in the above repository I get following error:
> [ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:3.0.0-M3:test (default-test) on project lombok-jdk10: Execution default-test of goal org.apache.maven.plugins:maven-surefire-plugin:3.0.0-M3:test failed: java.lang.UnsupportedClassVersionError: Preview features are not enabled for com/kirela/lombok/BarTest (class file version 56.65535). Try running with '--enable-preview' -> [Help 1]
>  
> Tests work when I remove `--enable-preview` from compiler OR when I remove "forkCount" from surefire (and failsafe) configuration.
> As I understand argLine property should be used in all forks, but appears to be ignored, there is no difference if I use it as a property or as a configuration paramater in surefire/failsafe.
>  
> This bug makes using Java 12 with preview features unusable with surefire/failsafe.
>  



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