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https://issues.apache.org/jira/browse/GROOVY-9209?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17134731#comment-17134731
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paolo di tommaso commented on GROOVY-9209:
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This bug is still a source of lot of pains. Any progress would be appreciated. 

> Compiler throws an exception in ClassNode#getTypeClass after checking 
> ClassNode#isResolved
> ------------------------------------------------------------------------------------------
>
>                 Key: GROOVY-9209
>                 URL: https://issues.apache.org/jira/browse/GROOVY-9209
>             Project: Groovy
>          Issue Type: Bug
>          Components: Compiler
>    Affects Versions: 2.5.6
>         Environment: intellij idea
>            Reporter: Daniil Ovchinnikov
>            Priority: Critical
>
> {noformat}
> Error:Groovyc: While compiling mn-gorm-example.main: BUG! exception in phase 
> 'canonicalization' in source unit 
> '/Users/pditommaso/Projects/mn-gorm-example/src/main/groovy/example/gorm/Bootstrap.groovy'
>  JVM class can't be loaded for example.gorm.service.PersonService
>       at 
> org.codehaus.groovy.ast.decompiled.AsmReferenceResolver.resolveJvmClass(AsmReferenceResolver.java:86)
>       at 
> org.codehaus.groovy.ast.decompiled.DecompiledClassNode.getTypeClass(DecompiledClassNode.java:175)
>       at org.codehaus.groovy.ast.ClassNode.getTypeClass(ClassNode.java:1381)
>       at 
> io.micronaut.ast.groovy.InjectTransform$InjectVisitor.resolveParameterType(InjectTransform.groovy:1117)
> ...
> {noformat}
> {code:java|title=InjectVisitor#resolveParameterType}
> ClassNode parameterType = parameter.type
> if (parameterType.isResolved()) {
>   parameterType.typeClass // here 
> } else {
>   parameterType.name
> }
> {code}
> Code: [https://github.com/pditommaso/mn-gorm-example]
>  Steps to reproduce:
>  1. make sure the build is not delegated to Gradle in Preferences | Build, 
> Execution, Deployment | Build Tools | Gradle
>  2. rebuild project
>  3. make changes in Person.groovy and Bootstrap.groovy (to mark them as 
> subject for recompilation)
>  4. build project
> What happens with {{-Dgroovyc.asm.resolving.only=false}}:
>  1. Bootstrap.groovy and Person.groovy are added to 
> {{CompilationUnit#queuedSources}}
>  2. {{ResolveVisitor}} visits Bootstrap.groovy and tries to load PersonService
>  3. {{asmResolving}} flag is set to {{false}} by IntelliJ, this results in 
> skipping {{findDecompiled}} call inside 
> {{ClassNodeResolver#tryAsLoaderClassOrScript}}
>  4. the PersonService class fails to load because of missing Person class
>  5. {{tryAsScript}} kicks in and adds PersonService to 
> {{CompilationUnit#queuedSources}}
>  6. when it comes to Micronaut {{ClassNode#isResolved}} returns {{false}} for 
> PersonService
> What happens without {{-Dgroovyc.asm.resolving.only=false}}:
>  1. same
>  2. same
>  3. {{asmResolving}} is not set by IntellliJ
>  4. {{findDecompiled}} returns {{DecompiledClassNode}} for PersonService
>  5. when it comes to Micronaut {{ClassNode#isResolved}} returns {{true}} for 
> PersonService, and this results in an exception because the class cannot be 
> loaded actually.
> I've tried to fix it in the compiler but I'm not sure what's the proper fix 
> would be. 
>  Please let me know if I can do something within IntelliJ. 
>  The issue in JB YouTrack for the reference: 
> [https://youtrack.jetbrains.com/issue/IDEA-218698]



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