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Posted to notifications@groovy.apache.org by "Paul King (Jira)" <ji...@apache.org> on 2024/04/23 02:09:00 UTC
[jira] [Updated] (GROOVY-11363) Bootstrap method error for method reference used with a primitive literal

     [ https://issues.apache.org/jira/browse/GROOVY-11363?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paul King updated GROOVY-11363:
-------------------------------
    Description: 
This code:
{code}
import groovy.transform.CompileStatic
import java.util.function.Supplier

@CompileStatic
Supplier<String> method() {
  5::toString
}

method().get()
{code}
Fails with this error:
{noformat}
java.lang.BootstrapMethodError: bootstrap method initialization exception
	at java.base/java.lang.invoke.BootstrapMethodInvoker.invoke(BootstrapMethodInvoker.java:188)
	at java.base/java.lang.invoke.CallSite.makeSite(CallSite.java:315)
	at java.base/java.lang.invoke.MethodHandleNatives.linkCallSiteImpl(MethodHandleNatives.java:281)
	at java.base/java.lang.invoke.MethodHandleNatives.linkCallSite(MethodHandleNatives.java:271)
	at ConsoleScript9.method(ConsoleScript9:6)
       ...
Caused by: java.lang.invoke.LambdaConversionException: Type mismatch in captured lambda parameter 0: expecting int, found class java.lang.Object
{noformat}

My initial expectation is that the wrapper type/boxed version should be used.

  was:
This code:
{code}
import groovy.transform.CompileStatic
import java.util.function.Supplier

@CompileStatic
Supplier<String> method() {
  5::toString
}

method().get()
{code}
Fails with this error:
{noformat}
java.lang.BootstrapMethodError: bootstrap method initialization exception
	at java.base/java.lang.invoke.BootstrapMethodInvoker.invoke(BootstrapMethodInvoker.java:188)
	at java.base/java.lang.invoke.CallSite.makeSite(CallSite.java:315)
	at java.base/java.lang.invoke.MethodHandleNatives.linkCallSiteImpl(MethodHandleNatives.java:281)
	at java.base/java.lang.invoke.MethodHandleNatives.linkCallSite(MethodHandleNatives.java:271)
	at ConsoleScript9.method(ConsoleScript9:6)
{noformat}

My initial expectation is that the wrapper type/boxed version should be used.


> Bootstrap method error for method reference used with a primitive literal
> -------------------------------------------------------------------------
>
>                 Key: GROOVY-11363
>                 URL: https://issues.apache.org/jira/browse/GROOVY-11363
>             Project: Groovy
>          Issue Type: Bug
>            Reporter: Paul King
>            Priority: Major
>
> This code:
> {code}
> import groovy.transform.CompileStatic
> import java.util.function.Supplier
> @CompileStatic
> Supplier<String> method() {
>   5::toString
> }
> method().get()
> {code}
> Fails with this error:
> {noformat}
> java.lang.BootstrapMethodError: bootstrap method initialization exception
> 	at java.base/java.lang.invoke.BootstrapMethodInvoker.invoke(BootstrapMethodInvoker.java:188)
> 	at java.base/java.lang.invoke.CallSite.makeSite(CallSite.java:315)
> 	at java.base/java.lang.invoke.MethodHandleNatives.linkCallSiteImpl(MethodHandleNatives.java:281)
> 	at java.base/java.lang.invoke.MethodHandleNatives.linkCallSite(MethodHandleNatives.java:271)
> 	at ConsoleScript9.method(ConsoleScript9:6)
>        ...
> Caused by: java.lang.invoke.LambdaConversionException: Type mismatch in captured lambda parameter 0: expecting int, found class java.lang.Object
> {noformat}
> My initial expectation is that the wrapper type/boxed version should be used.



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