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https://issues.apache.org/jira/browse/GROOVY-9822?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Paul King closed GROOVY-9822.
-----------------------------
> StackOverflowError in STC
> -------------------------
>
> Key: GROOVY-9822
> URL: https://issues.apache.org/jira/browse/GROOVY-9822
> Project: Groovy
> Issue Type: Bug
> Components: Static compilation
> Affects Versions: 3.0.6
> Reporter: Christopher Smith
> Assignee: Eric Milles
> Priority: Major
> Fix For: 2.5.14, 3.0.7, 4.0.0-alpha-2
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> This appears similar to GROOVY-9565, but it's happening in a context that is
> generics-free as far as I can tell.
> {code}
> Caused by: java.lang.StackOverflowError
> at org.codehaus.groovy.ast.decompiled.DecompiledClassNode.isUsingGenerics
> (DecompiledClassNode.java:86)
> at
> org.codehaus.groovy.transform.stc.StaticTypeCheckingSupport.applyGenericsContext
> (StaticTypeCheckingSupport.java:1880)
> at
> org.codehaus.groovy.transform.stc.StaticTypeCheckingSupport.applyGenericsContext
> (StaticTypeCheckingSupport.java:1870)
> at
> org.codehaus.groovy.transform.stc.StaticTypeCheckingSupport.applyGenericsContext
> (StaticTypeCheckingSupport.java:1827)
> at
> org.codehaus.groovy.transform.stc.StaticTypeCheckingSupport.applyGenericsContext
> (StaticTypeCheckingSupport.java:1816)
> at
> org.codehaus.groovy.transform.stc.StaticTypeCheckingSupport.applyGenericsContext
> (StaticTypeCheckingSupport.java:1882)
> {code}
> I managed attempted to trim down the example, but not without referring to
> the TinkerPop classes (3.4.8). This code triggers the recursion:
> {code:groovy}
> import
> org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversalSource
> import
> org.apache.tinkerpop.gremlin.process.traversal.strategy.verification.ReadOnlyStrategy
> import org.apache.tinkerpop.gremlin.structure.Graph
> import groovy.transform.CompileStatic
> @CompileStatic
> class Groovy9822 {
> static GraphTraversalSource readOnly(Graph graph) {
> def i = ReadOnlyStrategy.instance()
> graph.traversal().withStrategies(i)
> }
> }
> {code}
> Removing the second {{i}} so that the varargs is empty and the instance is
> not passed to {{withStrategies}} prevents the error. (In the original code,
> the invocation was inline with no local variable; I introduced it to make
> comparative demonstration easier, and its presence seems to be irrelevant.)
> In case it is relevant, the {{withStrategies}} method takes a non-generic
> {{TraversalStrategy...}}, but the class declaration of {{ReadOnlyStrategy}}
> is as follows:
> {code:java}
> public final class ReadOnlyStrategy extends
> AbstractTraversalStrategy<TraversalStrategy.VerificationStrategy> implements
> TraversalStrategy.VerificationStrategy
> {code}
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