russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
36 lines
1 KiB
Java
36 lines
1 KiB
Java
/*
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* @test /nodynamiccopyright/
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* @bug 8062373
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* @summary Test that javac does not recommend a diamond site that would result in error.
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* @compile/ref=Neg16.out -Xlint:-options Neg16.java -XDrawDiagnostics -XDfind=diamond
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*/
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class Neg16 {
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interface Predicate<T> {
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default boolean test(T t) {
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System.out.println("Default method");
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return false;
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}
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}
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static void someMethod(Predicate<? extends Number> p) {
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if (!p.test(null))
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throw new Error("Blew it");
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}
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public static void main(String[] args) {
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someMethod(new Predicate<Integer>() { // cannot convert to diamond
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public boolean test(Integer n) {
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System.out.println("Override");
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return true;
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}
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});
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someMethod(new Predicate<Number>() { // can convert to diamond.
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public boolean test(Number n) {
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System.out.println("Override");
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return true;
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}
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});
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}
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}
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