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test/tools/javac/lambda/funcInterfaces/LambdaTest2_neg1.java@c09b7234cded (annotated)

test/tools/javac/lambda/funcInterfaces/LambdaTest2_neg1.java

Tue, 14 May 2013 11:11:09 -0700

author

rfield

date

Tue, 14 May 2013 11:11:09 -0700

changeset 1752

c09b7234cded

parent 0

959103a6100f

permissions

-rw-r--r--

8012556: Implement lambda methods on interfaces as static
8006140: Javac NPE compiling Lambda expression on initialization expression of static field in interface
Summary: Lambdas occurring in static contexts or those not needing instance information should be generated into static methods. This has long been the case for classes. However, as a work-around to the lack of support for statics on interfaces, interface lambda methods have been generated into default methods. For lambdas in interface static contexts (fields and static methods) this causes an NPE in javac because there is no 'this'. MethodHandles now support static methods on interfaces. This changeset allows lambda methods to be generated as static interface methods. An existing bug in Hotspot (8013875) is exposed in a test when the "-esa" flag is used. This test and another test that already exposed this bug have been marked with @ignore.
Reviewed-by: mcimadamore

aoqi@0	1	/*
aoqi@0	2	* @test /nodynamiccopyright/
aoqi@0	3	* @bug 8003280
aoqi@0	4	* @summary Add lambda tests
aoqi@0	5	* This test is for identifying SAM types #5 and instantiating non-SAM types #7 through inner class,
aoqi@0	6	see Helper.java for SAM types
aoqi@0	7	* @compile/fail/ref=LambdaTest2_neg1.out -XDrawDiagnostics LambdaTest2_neg1.java Helper.java
aoqi@0	8	*/
aoqi@0	9
aoqi@0	10	public class LambdaTest2_neg1 {
aoqi@0	11
aoqi@0	12	public static void main(String[] args) {
aoqi@0	13	LambdaTest2_neg1 test = new LambdaTest2_neg1();
aoqi@0	14	//not convertible - QooRoo is not a SAM
aoqi@0	15	test.methodQooRoo((Integer i) -> { });
aoqi@0	16	}
aoqi@0	17
aoqi@0	18	void methodQooRoo(QooRoo<Integer, Integer, Void> qooroo) { }
aoqi@0	19	}