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import java.util.*;
class Main {
void foo(List<Integer> list) {
bar(list, i -> i.intValue(), i -> i.<error descr="Cannot resolve method 'unknown()'">unknown</error>());
bar1(list, i -> i.intValue(), i -> i.<error descr="Cannot resolve method 'unknown()'">unknown</error>());
}
<U, S_IN, S_OUT, R> R bar(List<S_IN> list,
Fun<S_IN, S_OUT> f1,
Fun<S_OUT, R> f2) {
return null;
}
<R, S_IN, S_OUT> R bar1(List<S_IN> list,
Fun<S_IN, S_OUT> f1,
Fun<S_OUT, R> f2) {
return null;
}
public interface Fun<T, R> {
public R _(T t);
}
}
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