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Cannot compile valid Groovy code due to final variable not seen as having been initialized #1017

renatoathaydes opened this issue Aug 27, 2019 · 1 comment


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commented Aug 27, 2019

Issue description

Valid Groovy class cannot be compiled (worked fine before upgrade) because a final variable is seen as possibly not initialized in the cleanup block.

How to reproduce

Attempt to compile this spec:

import spock.lang.Specification

class Broken3 extends Specification {
    def "test"() {
        final value = 'hello'

        value.size() > 3

        clean value

    def clean(v) {}


./gradlew compileTestGroovy


> Task :compileTestGroovy FAILED
startup failed:
/Users/renato/programming/projects/spock-tests/src/test/groovy/Broken3.groovy: 11: The variable [value] may be uninitialized
. At [11:15]  @ line 11, column 15.
           clean value

Expected outcome

Should compile ok.

Additional Environment information

From ./gradlew --version:

Gradle 5.2.1

Build time:   2019-02-08 19:00:10 UTC
Revision:     f02764e074c32ee8851a4e1877dd1fea8ffb7183

Kotlin DSL:   1.1.3
Kotlin:       1.3.20
Groovy:       2.5.4
Ant:          Apache Ant(TM) version 1.9.13 compiled on July 10 2018
JVM:          1.8.0_181 (Azul Systems, Inc. 25.181-b02)
OS:           Mac OS X 10.14.6 x86_64

Also attempted with Oracle's JVM and the result is the same:

JVM:          1.8.0_171 (Oracle Corporation 25.171-b11)

Groovy/Spock version

dependencies {
    compile 'org.spockframework:spock-core:1.3-groovy-2.5'

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commented Aug 27, 2019

Also tried with JVM version 12, and the result is the same.

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