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https://issues.apache.org/jira/browse/GROOVY-10056?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Paul King closed GROOVY-10056.
------------------------------
> Inferred parameter type of lambda expression for multi-dimensions array is
> not correct
> --------------------------------------------------------------------------------------
>
> Key: GROOVY-10056
> URL: https://issues.apache.org/jira/browse/GROOVY-10056
> Project: Groovy
> Issue Type: Bug
> Components: Static compilation, Static Type Checker
> Affects Versions: 4.0.0-alpha-3
> Reporter: Daniel Sun
> Assignee: Daniel Sun
> Priority: Major
> Fix For: 4.0.0-beta-1, 3.0.9
>
> Time Spent: 5h 20m
> Remaining Estimate: 0h
>
> The type of {{strs}} is inferred as {{String}}, but its type should be
> {{String[]}}
> {code:java}
> @groovy.transform.CompileStatic
> def test() {
> String[][] strsArray = new String[][] {
> new String[] {'a', 'b', 'c'},
> new String[] {'d', 'e', 'f'}
> }
> Arrays.stream(strsArray)
> .limit(1)
> .forEach(strs -> {
> assert ['a', 'b', 'c'] == Arrays.asList(strs)
> })
> }
> test()
> {code}
> *Error message*
> {code:java}
> java.lang.ClassCastException: class [Ljava.lang.String; cannot be cast to
> class java.lang.String ([Ljava.lang.String; and java.lang.String are in
> module java.base of loader 'bootstrap')
> at
> java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
> at java.base/java.util.stream.SliceOps$1$1.accept(SliceOps.java:199)
> at
> java.base/java.util.Spliterators$ArraySpliterator.tryAdvance(Spliterators.java:958)
> at
> java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127)
> at
> java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502)
> at
> java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488)
> at
> java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
> at
> java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
> at
> java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
> at
> java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
> at
> java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497)
> at ConsoleScript3.test(ConsoleScript3:7)
> at
> org.codehaus.groovy.vmplugin.v8.IndyInterface.fromCache(IndyInterface.java:318)
> at ConsoleScript3.run(ConsoleScript3:13)
> at
> groovy.lang.GroovyShell.runScriptOrMainOrTestOrRunnable(GroovyShell.java:257)
> at groovy.lang.GroovyShell.run(GroovyShell.java:363)
> at groovy.lang.GroovyShell.run(GroovyShell.java:342)
> at groovy.lang.GroovyShell.run(GroovyShell.java:168)
> at groovy.console.ui.Console$GroovySourceType.run(Console.groovy:1177)
> at groovy.console.ui.Console.doRun(Console.groovy:1408)
> at jdk.internal.reflect.GeneratedMethodAccessor81.invoke(Unknown Source)
> at
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.base/java.lang.reflect.Method.invoke(Method.java:566)
> at
> org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:112)
> at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
> at
> org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:331)
> at
> org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.callCurrent(PogoMetaClassSite.java:63)
> at
> org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:203)
> at
> groovy.console.ui.Console$_runScriptImpl_closure23.doCall(Console.groovy:1372)
> at
> groovy.console.ui.Console$_runScriptImpl_closure23.doCall(Console.groovy)
> at jdk.internal.reflect.GeneratedMethodAccessor78.invoke(Unknown Source)
> at
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.base/java.lang.reflect.Method.invoke(Method.java:566)
> at
> org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:112)
> at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
> at
> org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:268)
> at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1034)
> at groovy.lang.Closure.call(Closure.java:419)
> at groovy.lang.Closure.call(Closure.java:413)
> at groovy.lang.Closure.run(Closure.java:501)
> at java.base/java.lang.Thread.run(Thread.java:834)
> {code}
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