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Java example source code file (MostSpecific03.java)

This example Java source code file (MostSpecific03.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

intmapper, longmapper, test

The MostSpecific03.java Java example source code

/*
 * @test /nodynamiccopyright/
 * @bug 8003280
 * @summary Add lambda tests
 *  check correctness of structural most specific test routine
 * @compile/fail/ref=MostSpecific03.out -XDrawDiagnostics MostSpecific03.java
 */

class Test {

    interface IntMapper {
        int map();
    }

    interface LongMapper {
        long map();
    }

    void m(IntMapper... im) { }
    void m(LongMapper... lm) { }

    void m2(IntMapper im1, IntMapper... im) { }
    void m2(LongMapper... lm) { }

    void test1() {
        m(); //ambiguous
        m(()->1); //ok
        m(()->1, ()->1); //ok
        m(()->1, ()->1, ()->1); //ok
    }

    void test2() {
        m(null, null); //ambiguous
        m(()->1, null); //ambiguous
        m(null, ()->1); //ambiguous
        m(()->1L, null); //ok
        m(null, ()->1L); //ok
    }

    void test3() {
        m2(); //ok
        m2(()->1); //ambiguous
        m2(()->1, ()->1); //ok
        m2(()->1, ()->1, ()->1); //ok
    }

    void test4() {
        m2(null, null, null); //ambiguous
        m2(()->1, null, null); //ambiguous
        m2(null, ()->1, null); //ambiguous
        m2(null, null, ()->1); //ambiguous
        m2(()->1, ()->1, null); //ambiguous
        m2(null, ()->1, ()->1); //ambiguous
        m2(()->1, null, ()->1); //ambiguous

        m2(()->1L, null, null); //ok
        m2(null, ()->1L, null); //ok
        m2(null, null, ()->1L); //ok
        m2(()->1L, ()->1L, null); //ok
        m2(null, ()->1L, ()->1L); //ok
        m2(()->1L, null, ()->1L); //ok
    }
}

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