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https://issues.apache.org/jira/browse/GROOVY-11685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17955418#comment-17955418
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Eric Milles commented on GROOVY-11685:
--------------------------------------
In [this
method|https://github.com/brown-uk/nlp_uk/blob/f30e69fac5ce739d962d8aa24230655a8912640c/src/main/groovy/ua/net/nlp/tools/tag/TagUnknown.groovy#L63],
you rely on "def" to do a lot of heavy lifting. You could move the default
value (empty array list) to an else block under the check for non-empty
opToTagMap.
Anyways, besides adding some types along the way, I think the main problem is
your closure has two return statements. One returns a new TaggedToken and the
other just returns. Adding null to the return (with or without a typecast)
should fix it up.
{code:groovy}
Map<String, Map<WordReading, Integer>> lemmaSuffixStatsF = [:].withDefault {
[:].withDefault { 0 } }
def opToTagMap = lemmaSuffixStatsF[last3] // replace "def" with
"Map<WordReading, Integer>"
opToTagMap = opToTagMap.findAll { e -> getCoeff(e, token, idx, tokens) > 0 }
opToTagMap = opToTagMap.toSorted { e -> - getCoeff(e, token, idx, tokens) }
List<TaggedToken> retTokens = [] // move this to else block
retTokens = opToTagMap.collect { /*Map.Entry<WordReading, Integer>*/ e ->
...
if (...) return // probably need to add "(TaggedToken) null"
...
new TaggedToken(value: token, lemma: lemma, tags: wr.postag, confidence: q)
}
return retTokens
{code}
Small nitpick: When you want to collect all non-null things aka
"x.collect{...}.findAll{ it != null}",
[findResults|https://github.com/apache/groovy/blob/a095d672630ddab9dfc1b66a52313c1d152f28c5/src/main/java/org/codehaus/groovy/runtime/DefaultGroovyMethods.java#L6346]
does that without the extra findAll step (and intermediate collection).
> Static type checking fails with groovy 5.x
> ------------------------------------------
>
> Key: GROOVY-11685
> URL: https://issues.apache.org/jira/browse/GROOVY-11685
> Project: Groovy
> Issue Type: Bug
> Affects Versions: 5.0.0-beta-1
> Reporter: Andriy Rysin
> Assignee: Eric Milles
> Priority: Major
>
> This project can compile and run under groovy-4 but fails static type
> checking with groovy-5. I could not find what would be wrong with the code.
> [https://github.com/brown-uk/nlp_uk]
> {noformat}
> org.codehaus.groovy.control.MultipleCompilationErrorsException: startup
> failed:
> file:/home/user/nlp_uk/src/main/groovy/ua/net/nlp/tools/TextUtils.groovy:
> 182: [Static type checking] - Cannot call
> java.util.function.Consumer#call(capture-o
> f ? extends ua.net.nlp.tools.TextUtils.ResultBase) with arguments
> [ua.net.nlp.tools.TextUtils$ResultBase]
> @ line 182, column 6.
> postProcessClosure(analyzed)
> ^
> file:/home/user/nlp_uk/src/main/groovy/ua/net/nlp/tools/TextUtils.groovy:
> 200: [Static type checking] - Cannot call
> java.util.function.Consumer#call(capture-o
> f ? extends ua.net.nlp.tools.TextUtils.ResultBase) with arguments
> [ua.net.nlp.tools.TextUtils$ResultBase]
> @ line 200, column 4.
> postProcessClosure(analyzed)
> ^
> file:/home/user/nlp_uk/src/main/groovy/ua/net/nlp/tools/tag/TagUnknown.groovy:
> 97: [Static type checking] - Incompatible generic argument types. Cannot
> assign
> java.util.List<java.lang.Object> to:
> java.util.List<ua.net.nlp.tools.tag.TagTextCore.TaggedToken>
> @ line 97, column 25.
> retTokens = opToTagMap.collect { e ->
> ^
> file:/home/user/nlp_uk/src/main/groovy/ua/net/nlp/tools/tag/TagUnknown.groovy:
> 136: [Static type checking] - Incompatible generic argument types. Cannot
> assig
> n java.util.List<? extends java.lang.Object> to:
> java.util.List<ua.net.nlp.tools.tag.TagTextCore.TaggedToken>
> @ line 136, column 16.
> return retTokens
> ^
> {noformat}
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