Java example source code file (NonSAM2.java)

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Java - Java tags/keywords

abc, bar1, bar2, foo1, foo1bar1, foo2, foo2bar2, integer, util

The NonSAM2.java Java example source code

/*
 * @test /nodynamiccopyright/
 * @bug 8003280
 * @summary Add lambda tests
 *   This test is for identifying a non-SAM type: Having more than one methods due to inheritance, and none of them has a subsignature of all other methods
 * @compile/fail/ref=NonSAM2.out -XDrawDiagnostics NonSAM2.java Helper.java
 */

import java.util.List;

interface Foo1 { int getAge(String s);}
interface Bar1 { Integer getAge(String s);}
interface Foo1Bar1 extends Foo1, Bar1 {} //types Bar1 and Foo1 are incompatible; both define getAge(String), but with unrelated return types

interface AC extends A, C {} //name clash: getOldest(List<?>) in C and getOldest(List) in A have the same erasure, yet neither overrides the other
interface ABC extends A, B, C {} //ok - raw override
interface AD extends A, D {} //name clash: getOldest(List<Integer>) in D and getOldest(List) in A have the same erasure, yet neither overrides the other

interface Foo2<T> { void m(T arg);}
interface Bar2<S> { void m(S arg);}
interface Foo2Bar2<T1, T2> extends Foo2, Bar2 {} //name clash: m(S) in Bar and m(T) in Foo have the same erasure, yet neither overrides the other