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https://issues.apache.org/jira/browse/GROOVY-8640?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16509954#comment-16509954
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John Wagenleitner commented on GROOVY-8640:
-------------------------------------------
I believe this is related to GROOVY-8562. Inside that closure {{this}} would
refer to {{Test.Nested}} and it does have a {{MAX_LINES}} property because of
the delegate. If you remove {{CompileStatic}} you would see that {{MAX_LINES}}
resolves to {{NULL}} which dynamic groovy handles as 0. So I think this error
is correct and the fix would be to use {{Test.MAX_LINES}} inside the closure
instead of the implicit {{this.MAX_LINES}}.
> Cannot find matching comparator method
> --------------------------------------
>
> Key: GROOVY-8640
> URL: https://issues.apache.org/jira/browse/GROOVY-8640
> Project: Groovy
> Issue Type: Bug
> Components: Static compilation
> Affects Versions: 2.5.0
> Reporter: paolo di tommaso
> Priority: Minor
>
> The following class static compilation fails
> {code:java}
> @CompileStatic
> class Test {
> static private int MAX_LINES = 100
> private static class Nested {
> @Delegate
> private Map<String,Object> delegate = [:]
> private String fetch(Path path) {
> int c=0
> def result = new StringBuilder()
> path.withReader { reader ->
> String line
> while( (line=reader.readLine()) && c++<MAX_LINES ) {
> result << line
> }
> }
> result
> }
> }
> }{code}
>
> Reported error:
> {code:java}
> Test.groovy: 45: [Static type checking] - Cannot find matching method
> java.lang.Integer#compareTo(java.lang.Object). Please check if the declared
> type is correct and if the method exists.
> @ line 45, column 55.
> line=reader.readLine()) && c++<MAX_LINES
> ^{code}
>
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