[GROOVY-7722] StackOverflowError when use anonymous class with generics.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.4
• Fix Version/s: 2.5.9, 3.0.0-rc-2
• Component/s: ast builder
• Environment: Groovy Version: 2.4.4 JVM: 1.8.0_51 Vendor: Oracle Corporation OS: Mac OS X
• Assignee: Eric Milles
• Reporter: taka men
• Created: 31/Dec/15 11:28
• Updated: 09/Dec/19 21:36
• Resolved: 11/Nov/19 06:03

Description

I put a sample code to GitHub.
https://github.com/takahirom/groovy-stackoverflow-bug

I can reproduce it following code. And This error hasn't occurred in java8.

import java.util.*;

interface Action1<T> {
    void call(T t);
}
abstract class Subscriber<T> {
}
interface OnSubscribe<T> extends Action1<Subscriber<? super T>> {
}
new OnSubscribe<List>() {
        @Override
        public void call(Subscriber<? super List> o){
                System.out.println("called");
        }
}.call(null);

StackTrace:

$groovy -d Test.groovy  
Caught: java.lang.StackOverflowError
java.lang.StackOverflowError
        at org.codehaus.groovy.ast.tools.GenericsUtils.correctToGenericsSpecRecurse(GenericsUtils.java:318)
        at org.codehaus.groovy.ast.tools.GenericsUtils.correctToGenericsSpecRecurse(GenericsUtils.java:342)
        at org.codehaus.groovy.ast.tools.GenericsUtils.correctToGenericsSpecRecurse(GenericsUtils.java:342)
        at org.codehaus.groovy.ast.tools.GenericsUtils.correctToGenericsSpecRecurse(GenericsUtils.java:342)
        at org.codehaus.groovy.ast.tools.GenericsUtils.correctToGenericsSpecRecurse(GenericsUtils.java:342)
        at org.codehaus.groovy.ast.tools.GenericsUtils.correctToGenericsSpecRecurse(GenericsUtils.java:342)
        at org.codehaus.groovy.ast.tools.GenericsUtils.correctToGenericsSpecRecurse(GenericsUtils.java:342)
        at org.codehaus.groovy.ast.tools.GenericsUtils.correctToGenericsSpecRecurse(GenericsUtils.java:342)
        at org.codehaus.groovy.ast.tools.GenericsUtils.correctToGenericsSpecRecurse(GenericsUtils.java:342)
        at org.codehaus.groovy.ast.tools.GenericsUtils.correctToGenericsSpecRecurse(GenericsUtils.java:342)
        at org.codehaus.groovy.ast.tools.GenericsUtils.correctToGenericsSpecRecurse(GenericsUtils.java:342)
        at org.codehaus.groovy.ast.tools.GenericsUtils.correctToGenericsSpecRecurse(GenericsUtils.java:342)
        at org.codehaus.groovy.ast.tools.GenericsUtils.correctToGenericsSpecRecurse(GenericsUtils.java:342)

Issue Links

• duplicates: GROOVY-7864 Stack overflow correcting generics when using @CompileStatic
• links to: GitHub Pull Request #1077