Run the following code:

import java.util.List;

public class Test {

public static void main(String[] args) {
System.out.println("Testing with explicit type");
MyGroup group = new MyGroup();

System.out.println(" Testing lambda");
if (group.getPersons().stream().anyMatch(p -> p.isFoo())) {}
System.out.println(" Lambda is good");

System.out.println(" Testing method reference");
if (group.getPersons().stream().anyMatch(Test.Person::isFoo)) {}
System.out.println(" Method reference is good");

System.out.println("Testing with wildcard");
Group<?> group2 = new MyGroup();

System.out.println(" Testing lambda");
if (group2.getPersons().stream().anyMatch(p -> p.isFoo())) {}
System.out.println(" Lambda is good");

System.out.println(" Testing method reference");
if (group2.getPersons().stream().anyMatch(Test.Person::isFoo)) {}
System.out.println(" Method reference is good");
}

interface Group<T extends Person> {
List<T> getPersons();
}

interface Person {
boolean isFoo();
}

static class MyGroup implements Group<MyPerson> {

@Override
public List<MyPerson> getPersons() {
return List.of();
}
}

static class MyPerson implements Person {

@Override
public boolean isFoo() {
return true;
}
}
}

It will fail when using a method reference in combination with the parametrized type:

Testing explicit type
  Testing lambda
  Lambda is good
  Testing method reference
  Method reference is good
Testing with wildcard
  Testing lambda
  Lambda is good
  Testing method reference
Exception in thread "main" java.lang.BootstrapMethodError: bootstrap method initialization exception
at java.base/java.lang.invoke.BootstrapMethodInvoker.invoke(BootstrapMethodInvoker.java:185)
at java.base/java.lang.invoke.CallSite.makeSite(CallSite.java:315)
at java.base/java.lang.invoke.MethodHandleNatives.linkCallSiteImpl(MethodHandleNatives.java:281)
at java.base/java.lang.invoke.MethodHandleNatives.linkCallSite(MethodHandleNatives.java:271)
at Test.main(Test.java:25)
Caused by: java.lang.invoke.LambdaConversionException: Invalid receiver type class java.lang.Object; not a subtype of implementation type interface Test$Person
at java.base/java.lang.invoke.AbstractValidatingLambdaMetafactory.validateMetafactoryArgs(AbstractValidatingLambdaMetafactory.java:268)
at java.base/java.lang.invoke.LambdaMetafactory.metafactory(LambdaMetafactory.java:327)
at java.base/java.lang.invoke.BootstrapMethodInvoker.invoke(BootstrapMethodInvoker.java:127)
... 4 more


openjdk version "16" 2021-03-16
OpenJDK Runtime Environment (build 16+36-2231)
OpenJDK 64-Bit Server VM (build 16+36-2231, mixed mode, sharing)