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Static interface methods not recognized on type generics #4058
Description
Following is some sample code to replicate the issue:
public class Tester<T extends Thing> {
public void test() {
System.out.println("Testing: " + T.getStuff()); // Error is here
}
public static void main(String[] args) {
Tester<OtherThing> tester = new Tester<>();
tester.test();
}
}
interface Thing {
static String getStuff() {
return "Stuff";
}
}
class OtherThing implements Thing {
}With this, I get a build error: The method getStuff() is undefined for the type T Java(67108964). However, enabling the "java.jdt.ls.javac.enabled" works, but is not an ideal solution.
This occurs with the latest Language Support for Java(TM) by Red Hat - v1.42.0.
Activity
fbricon commentedon Oct 24, 2025
upstream issue eclipse-jdt/eclipse.jdt.core#4550
fbricon commentedon Feb 12, 2026
So this will not be fixed in ECJ:
Now you can either keep the javac compilation turned on, or change the code to be compliant with the Java spec.