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https://issues.apache.org/jira/browse/GROOVY-10136?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17676697#comment-17676697
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Eric Milles commented on GROOVY-10136:
--------------------------------------
Quick update (more details in GROOVY-10109 and GROOVY-10429): Java compiler
creates a public bridge method in StringBuilder. Groovy compiler now selects
the public bridge method, so no package-private access issue. Groovy 4.0.7,
3.0.14 and 2.5.20 contain this fix.
> [JDK16] Failed to find `public` method derived from `package` super class
> -------------------------------------------------------------------------
>
> Key: GROOVY-10136
> URL: https://issues.apache.org/jira/browse/GROOVY-10136
> Project: Groovy
> Issue Type: Bug
> Reporter: Daniel Sun
> Assignee: Daniel Sun
> Priority: Major
> Fix For: 4.0.0
>
>
> The {{public}} {{setLength()}} is defined in
> {{java.lang.AbstractStringBuilder}}, whose visibility is {{package}}, the
> following error happened if accessing {{setLength()}} via
> {{java.lang.StringBuilder}}, which is derived from
> {{java.lang.AbstractStringBuilder}}
> {code:java}
> TraitsSpecificationTest > testStackableTraits FAILED
> groovy.lang.MissingMethodException: No signature of method:
> java.lang.StringBuilder.setLength() is applicable for argument types:
> (Integer) values: [0]
> Possible solutions: setLength(int), length()
> at
> org.codehaus.groovy.runtime.ScriptBytecodeAdapter.unwrap(ScriptBytecodeAdapter.java:70)
> at
> org.codehaus.groovy.runtime.callsite.PojoMetaClassSite.call(PojoMetaClassSite.java:47)
> 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
> TraitsSpecificationTest$PrintCategory.reset(TraitsSpecificationTest.groovy:838)
> at
> org.codehaus.groovy.vmplugin.v8.IndyInterface.fromCache(IndyInterface.java:318)
> {code}
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