Java example source code file (NonSAM3.java)

This example Java source code file (NonSAM3.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

collection, foobar, integer, list, nonsam3, number, util

The NonSAM3.java Java example source code

/*
 * @test /nodynamiccopyright/
 * @bug 8003280
 * @summary Add lambda tests
 *   This test is for identifying a non-SAM type: Having overloaded methods due to inheritance
 * @compile/fail/ref=NonSAM3.out -XDrawDiagnostics NonSAM3.java Helper.java
 */

import java.util.Collection;
import java.util.List;

public class NonSAM3 {
    void method() {
        //all of the following will have compile error: "the target type of a lambda conversion has multiple non-overriding abstract methods"
        FooBar fb = (Number n) -> 100;
        FooBar fb2 = (Integer i) -> 100;
        DE de = (List<Integer> list) -> 100;
        DE de2 = (List<?> list) -> 100;
        DE de3 = (List list) -> 100;
        DE de4 = (Collection<Integer> collection) -> 100;
        DE de5 = (Collection<?> collection) -> 100;
        DE de6 = (Collection collection) -> 100;
    }
}