[jira] [Updated] (GROOVY-9852) Result is already complete (IllegalStateException)

["André Filipe Aloise (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/GROOVY-9852?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

André Filipe Aloise updated GROOVY-9852:
----------------------------------------
    Summary: Result is already complete (IllegalStateException)  (was: Result is already complete)

> Result is already complete (IllegalStateException)
> --------------------------------------------------
>
>                 Key: GROOVY-9852
>                 URL: https://issues.apache.org/jira/browse/GROOVY-9852
>             Project: Groovy
>          Issue Type: Bug
>    Affects Versions: 3.0.5
>         Environment: Windows 10
> OpenJDK Runtime Environment (AdoptOpenJDK)(build 1.8.0_272-b10)
>            Reporter: André Filipe Aloise
>            Priority: Major
>
> Steps:
> 1 - Consider this reproducer [https://github.com/ptomaszek/vertx-groovy]
> 2 - Edit build.gradle and change vertxVersion to '4.0.0.Beta1' (uses Groovy 3.0.3)
> 3 - Edit org.example.MainGroovy and replace the code of main method with the following:
> {code:java}
> Promise p = Promise.promise()
> p.future().onSuccess { println it }
> p.complete("Done with Groovy!!!"){code}
> The code runs fine.
> But, if in Step 2 the vertxVersion in build.gradle is changed to '4.0.0.Beta2' (uses Groovy 3.0.5), the code from Step 3 will fail with an IllegalStateException. 
> {code:java}
> Exception in thread "main" java.lang.IllegalStateException: Result is already complete
>  at io.vertx.core.Promise.complete(Promise.java:67)
>  at io.vertx.core.Promise$complete$1.call(Unknown Source)
>  at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
>  at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
>  at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:139)
>  at org.example.MainGroovy.main(MainGroovy.groovy:17)
> {code}
> If you use @CompileStatic on main method with Step 3, with Beta2, it works fine. The @CompileStatic is not necessary to run well with Vert.x '4.0.0.Beta1'. A Java class with similar code will work using any version of Vert.x (Beta1, Beta2, Beta3, CR1....), so doesn't looks like a Java or Vertx issue.



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