--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javac/generics/diamond/neg/Neg16.java Mon Mar 30 17:09:14 2015 +0530
@@ -0,0 +1,36 @@
+/*
+ * @test /nodynamiccopyright/
+ * @bug 8062373
+ * @summary Test that javac does not recommend a diamond site that would result in error.
+ * @compile/ref=Neg16.out -Xlint:-options Neg16.java -XDrawDiagnostics -XDfind=diamond
+ */
+
+class Neg16 {
+
+ interface Predicate<T> {
+ default boolean test(T t) {
+ System.out.println("Default method");
+ return false;
+ }
+ }
+
+ static void someMethod(Predicate<? extends Number> p) {
+ if (!p.test(null))
+ throw new Error("Blew it");
+ }
+
+ public static void main(String[] args) {
+ someMethod(new Predicate<Integer>() { // cannot convert to diamond
+ public boolean test(Integer n) {
+ System.out.println("Override");
+ return true;
+ }
+ });
+ someMethod(new Predicate<Number>() { // can convert to diamond.
+ public boolean test(Number n) {
+ System.out.println("Override");
+ return true;
+ }
+ });
+ }
+}