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https://issues.apache.org/jira/browse/GROOVY-11360?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Eric Milles resolved GROOVY-11360.
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Fix Version/s: 5.0.0-alpha-9
Resolution: Fixed
https://github.com/apache/groovy/commit/e064be1903426becc0e5810ca8e350b7a3ed5e80
You'll need to set the warning level on your compiler configuration to 2 or
higher. It defaults to 1.
> Issue a warning when accessing static fields that are "shadowed" by get()
> methods
> ---------------------------------------------------------------------------------
>
> Key: GROOVY-11360
> URL: https://issues.apache.org/jira/browse/GROOVY-11360
> Project: Groovy
> Issue Type: Improvement
> Components: Compiler
> Affects Versions: 4.0.21
> Reporter: Pavel Lobodinský
> Assignee: Eric Milles
> Priority: Minor
> Fix For: 5.0.0-alpha-9
>
>
> h1. Introduction
> When having a static field in a class that is retrieved by lambda, a
> {{get()}} method is invoked instead. See the example code below, where
> {{DataClass#get}} is called instead of returning the value of the {{STR}}
> field.
> {code:groovy}
> class StaticPropertyIssueTest {
> static def STR = "test"
> static void main(String[] args) {
> def dataClass = new DataClass(value: "test")
> dataClass.with {
> assert value == STR
> }
> }
> }
> class DataClass {
> String value
> String get(String str) { "Hello" }
> } {code}
> In the https://issues.apache.org/jira/browse/GROOVY-11144 discussion, I
> learned that this is an expected behaviour.
> The main reason why I find this behaviour counter-intuitive is, that if the
> {{DataClass}} comes from a library, I have no clue the {{DataClass#get}}
> method exists. This problem always happens with AVRO-generated classes in
> particular, where every class extending the {{}}
> {code:java}
> org.apache.avro.specific.SpecificRecordBase{code}
> implements a
> {code:java}
> public Object get(String fieldName) { ... }{code}
> method.
> Actually, the {{get()}} method may even come from my own code, but I just
> don't realise it will be called because I simply only see the {{STR}} static
> field in my currently implemented class.
> h1. Improvement proposal
> Since this is the intended way Groovy is supposed to work, it would be
> amazing if the compiler could issue a warning that the static field's
> retrieval is shadowed by a getter method that will be called rather than
> returning the static field's value.
> In my eyes, this is something one simply does not expect. A compiler warning
> together with advice, that we must qualify the field retrieval by {{this}}
> keyword or by a class name, would help to understand the root cause of a
> misbehaving code.
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