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23 
24 /**
25  * @test
26  * @bug 8003280
27  * @summary Add lambda tests
28  *   Test static method reference
29  * @compile MethodRef1.java
30  * @run main MethodRef1
31  */
32 
33 public class MethodRef1 {
34 
m()35     static interface A {void m();}
36 
m(int i)37     static interface B {void m(int i);}
38 
m(String s)39     static interface C {String m(String s);}
40 
assertTrue(boolean cond)41     private static void assertTrue(boolean cond) {
42         if (!cond)
43             throw new AssertionError();
44     }
45 
foo(int x)46     static void foo(int x) {
47         System.out.println("MethodRef1.foo(int) " + x);
48     }
49 
bar()50     static void bar() {
51         System.out.println("MethodRef1.bar()");
52     }
53 
bar(int x)54     static void bar(int x) {
55         System.out.println("MethodRef1.bar(int) " + x);
56     }
57 
bar(String s)58     static String bar(String s) {
59         return "MethodRef1.bar(String) " + s;
60     }
61 
main(String[] args)62     public static void main(String[] args) {
63 
64         A a = MethodRef1::bar; //static reference to bar()
65         a.m();
66 
67         B b = MethodRef1::foo; //static reference to foo(int), (int) omitted because method foo is not overloaded
68         b.m(1);
69 
70         b = MethodRef1::foo; //static reference to foo(int)
71         b.m(1);
72 
73         b = MethodRef1::bar; //static reference to bar(int)
74         b.m(2);
75 
76         C c = MethodRef1::bar; //static reference to bar(String)
77         assertTrue( c.m("hi").equals("MethodRef1.bar(String) hi") );
78     }
79 }
80