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https://issues.apache.org/jira/browse/GROOVY-10996?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17712837#comment-17712837
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Marat Kamalov commented on GROOVY-10996:
----------------------------------------

Additional information:

If you try to change
 
{code:java}
<dependency>
    <groupId>org.apache.groovy</groupId>
    <artifactId>groovy</artifactId>
    <version>4.0.11</version>
</dependency>  {code}
to:
{code:java}
<dependency>
    <groupId>org.codehaus.groovy</groupId>
    <artifactId>groovy</artifactId>
    <version>3.0.17</version>
</dependency>{code}
All tests have successfully passed with Groovy 3.0.17, which indicates that 
there might be a bug present.

> Compilation issue in Groovy 4
> -----------------------------
>
>                 Key: GROOVY-10996
>                 URL: https://issues.apache.org/jira/browse/GROOVY-10996
>             Project: Groovy
>          Issue Type: Bug
>          Components: Compiler
>            Reporter: Marat Kamalov
>            Priority: Major
>         Attachments: groovy_bug.zip
>
>
> We migrate the application to Groovy 4 and got an issue:
> 1) We use GroovyClassLoader to load *.groovy written classes to a classloader
> 2) Before the migration we used Groovy 3.0.15.
> 3) After the migration to 4.0.10 I've got the following error:
> {code:java}
> Only classes and closures can be used for attribute 'value' in 
> @org.openl.rules.ruleservice.core.annotations.ServiceExtraMethod
>  @ line 18, column 30.
>        @ServiceExtraMethod(value = 
> org.openl.generated.services.ServiceExtraMethodHandler2Impl.class)
>                                 ^ {code}
> 4) If the annotation definition changed from @ServiceExtraMethod(value = 
> org.openl.generated.services.ServiceExtraMethodHandler2Impl.class) to 
> @ServiceExtraMethod(value = 
> org.openl.generated.services.ServiceExtraMethodHandler2Impl) then the code is 
> compiled successfully.
> Why does the compilation start to fail with .class? I can't reproduce the 
> same issue on IntelliJ IDEA.
> Can you suggest what to try? Is it expected for Groovy to stop supporting 
> .class in Groovy 4?



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