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https://issues.apache.org/jira/browse/GROOVY-8111?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Milles updated GROOVY-8111:
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Fix Version/s: 3.0.9
> Stack overflow between WideningCategories lowestUpperBound and
> parameterizeLowestUpperBound
> -------------------------------------------------------------------------------------------
>
> Key: GROOVY-8111
> URL: https://issues.apache.org/jira/browse/GROOVY-8111
> Project: Groovy
> Issue Type: Bug
> Affects Versions: 2.5.14, 3.0.8, 4.0.0-beta-1
> Reporter: Eric Milles
> Assignee: Eric Milles
> Priority: Critical
> Fix For: 4.0.0-beta-1, 3.0.9
>
>
> I have run into this stack overflow error a few times when editing a Groovy
> file. Consider the following:
> {code:groovy}
> // excerpt of org.apache.commons.lang3.tuple.Pair
> class Pair<L, R> implements Map.Entry<L, R>, Comparable<Pair<L, R>>,
> Serializable {
> public final L left
> public final R right
> private Pair(final L left, final R right) {
> this.left = left
> this.right = right
> }
> static <L, R> Pair<L, R> of(final L left, final R right) {
> return new Pair<>(left, right)
> }
> L getKey() { left }
> R getValue() { right }
> R setValue(R value) { right }
> int compareTo(Pair<L,R> that) { 0 }
> }
> @groovy.transform.TypeChecked
> def test(thing) {
> thing != null ?: Pair.of('', ['']) // STCV is trying to get LUB of boolean
> and Pair<String,List<String>>
> }
> test(null)
> {code}
> Captured on Groovy 2.4.9:
> {code:java}
> java.lang.StackOverflowError
> at org.codehaus.groovy.ast.ClassNode.getText(ClassNode.java:1686)
> at org.codehaus.groovy.ast.ClassNode.equals(ClassNode.java:813)
> at org.codehaus.groovy.ast.ClassNode.equals(ClassNode.java:810)
> at
> org.codehaus.groovy.ast.ClassNode.declaresInterface(ClassNode.java:1082)
> at
> org.codehaus.groovy.ast.ClassNode.implementsInterface(ClassNode.java:1060)
> at
> org.codehaus.groovy.transform.stc.StaticTypeCheckingSupport.implementsInterfaceOrIsSubclassOf(StaticTypeCheckingSupport.java:798)
> at
> org.codehaus.groovy.ast.tools.GenericsUtils.extractSuperClassGenerics(GenericsUtils.java:434)
> at
> org.codehaus.groovy.ast.tools.GenericsUtils.parameterizeType(GenericsUtils.java:228)
> at
> org.codehaus.groovy.ast.tools.WideningCategories.findGenericsTypeHolderForClass(WideningCategories.java:269)
> at
> org.codehaus.groovy.ast.tools.WideningCategories.parameterizeLowestUpperBound(WideningCategories.java:233)
> at
> org.codehaus.groovy.ast.tools.WideningCategories.lowestUpperBound(WideningCategories.java:203)
> at
> org.codehaus.groovy.ast.tools.WideningCategories.parameterizeLowestUpperBound(WideningCategories.java:250)
> at
> org.codehaus.groovy.ast.tools.WideningCategories.lowestUpperBound(WideningCategories.java:203)
> at
> org.codehaus.groovy.ast.tools.WideningCategories.parameterizeLowestUpperBound(WideningCategories.java:250)
> at
> org.codehaus.groovy.ast.tools.WideningCategories.lowestUpperBound(WideningCategories.java:203)
> at
> org.codehaus.groovy.ast.tools.WideningCategories.parameterizeLowestUpperBound(WideningCategories.java:250)
> at
> org.codehaus.groovy.ast.tools.WideningCategories.lowestUpperBound(WideningCategories.java:203)
> {code}
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