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Java example source code file (BadLambdaPos.java)

This example Java source code file (BadLambdaPos.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

object, sam, test

The BadLambdaPos.java Java example source code

/*
 * @test /nodynamiccopyright/
 * @bug 8003280
 * @summary Add lambda tests
 *  check that lambda is only allowed in argument/cast/assignment context
 * @author  Maurizio Cimadamore
 * @compile/fail/ref=BadLambdaPos.out -XDrawDiagnostics BadLambdaPos.java
 */

interface SAM {
    void m(Integer x);
}

class Test {
    void test(Object x) {}

    void test1() {
        test((int x)-> { } + (int x)-> { } );
        test((int x)-> { } instanceof Object );
    }

    void test2() {
        int i2 = (int x)-> { } + (int x)-> { };
        boolean b = (int x)-> { } instanceof Object;
    }

    void test3() {
        test((Object)(int x)-> { });
        Object o = (Object)(int x)-> { };
    }
}

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