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Posted to notifications@groovy.apache.org by "Eric Milles (Jira)" <ji...@apache.org> on 2023/02/14 14:38:00 UTC
[jira] [Commented] (GROOVY-10933) Bootstrap Method Error on non-void lambda for Consumer
[ https://issues.apache.org/jira/browse/GROOVY-10933?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17688527#comment-17688527 ]
Eric Milles commented on GROOVY-10933:
--------------------------------------
Runs for me on Java 8 but fails on Java 11, which is unexpected.
> Bootstrap Method Error on non-void lambda for Consumer
> ------------------------------------------------------
>
> Key: GROOVY-10933
> URL: https://issues.apache.org/jira/browse/GROOVY-10933
> Project: Groovy
> Issue Type: Bug
> Components: Static compilation
> Affects Versions: 4.0.9
> Reporter: Christopher Smith
> Assignee: Eric Milles
> Priority: Major
>
> When a method that returns a value is used as a {{Consumer}}, a runtime {{Error}} is produced.
> {code:groovy}
> class BugRepro extends Specification {
> def 'repro'() {
> expect:
> new Demo().run()
> }
> }
> @CompileStatic
> class Demo {
> List<String> strings = []
> void run() {
> Optional.of('hello')
> .ifPresent(strings::add)
> }
> }
> {code}
> {code}
> Condition failed with Exception:
> new Demo().run()
> | |
> | java.lang.BootstrapMethodError: bootstrap method initialization exception
> | at java.base/java.lang.invoke.BootstrapMethodInvoker.invoke(BootstrapMethodInvoker.java:194)
> | at java.base/java.lang.invoke.CallSite.makeSite(CallSite.java:307)
> | at java.base/java.lang.invoke.MethodHandleNatives.linkCallSiteImpl(MethodHandleNatives.java:258)
> | at java.base/java.lang.invoke.MethodHandleNatives.linkCallSite(MethodHandleNatives.java:248)
> | at Demo.run(BugRepro.groovy:18)
> | at BugRepro.repro(BugRepro.groovy:9)
> | Caused by: java.lang.invoke.LambdaConversionException: Type mismatch for lambda expected return: boolean is not convertible to void
> | at java.base/java.lang.invoke.AbstractValidatingLambdaMetafactory.checkDescriptor(AbstractValidatingLambdaMetafactory.java:317)
> | at java.base/java.lang.invoke.AbstractValidatingLambdaMetafactory.validateMetafactoryArgs(AbstractValidatingLambdaMetafactory.java:294)
> | at java.base/java.lang.invoke.LambdaMetafactory.metafactory(LambdaMetafactory.java:328)
> | at java.base/java.lang.invoke.BootstrapMethodInvoker.invoke(BootstrapMethodInvoker.java:127)
> | ... 5 more
> <Demo@18e8473e strings=[]>
> at BugRepro.repro(BugRepro.groovy:9)
> Caused by: java.lang.BootstrapMethodError: bootstrap method initialization exception
> at java.base/java.lang.invoke.BootstrapMethodInvoker.invoke(BootstrapMethodInvoker.java:194)
> at java.base/java.lang.invoke.CallSite.makeSite(CallSite.java:307)
> at java.base/java.lang.invoke.MethodHandleNatives.linkCallSiteImpl(MethodHandleNatives.java:258)
> at java.base/java.lang.invoke.MethodHandleNatives.linkCallSite(MethodHandleNatives.java:248)
> at Demo.run(BugRepro.groovy:18)
> ... 1 more
> Caused by: java.lang.invoke.LambdaConversionException: Type mismatch for lambda expected return: boolean is not convertible to void
> at java.base/java.lang.invoke.AbstractValidatingLambdaMetafactory.checkDescriptor(AbstractValidatingLambdaMetafactory.java:317)
> at java.base/java.lang.invoke.AbstractValidatingLambdaMetafactory.validateMetafactoryArgs(AbstractValidatingLambdaMetafactory.java:294)
> at java.base/java.lang.invoke.LambdaMetafactory.metafactory(LambdaMetafactory.java:328)
> at java.base/java.lang.invoke.BootstrapMethodInvoker.invoke(BootstrapMethodInvoker.java:127)
> ... 5 more
> {code}
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