GenericArity.java

// Test case for Issue #803
// https://github.com/typetools/checker-framework/issues/803
// @skip-test

import org.checkerframework.checker.nullness.qual.*;

interface GenFunc {
    <T extends @Nullable Number, U extends @Nullable Number> T apply(U u);
}

interface GenFunc2 {
    <T extends @Nullable Number, U extends @NonNull Number> T apply(U u);
}

class TestGenFunc {
    static <V extends @NonNull Number, P extends @Nullable Number> V apply(P u) {
        throw new RuntimeException("");
    }

    void context() {
        GenFunc f = TestGenFunc::apply;
        //:: error: (methodref.param.invalid)
        GenFunc2 f2 = TestGenFunc::apply;
    }
}