8231826: Implement javac changes for pattern matching for instanceof
Reviewed-by: mcimadamore
Contributed-by: brian.goetz@oracle.com, gavin.bierman@oracle.com, maurizio.cimadamore@oracle.com, srikanth.adayapalam@oracle.com, vicente.romero@oracle.com, jan.lahoda@oracle.com
/*
* @test /nodynamiccopyright/
* @bug 8187429 8231827
* @summary Missing unchecked conversion warning
* @compile/fail/ref=UncheckedWarningOnMatchesTest.out -Xlint:unchecked -Werror -XDrawDiagnostics --enable-preview -source ${jdk.version} UncheckedWarningOnMatchesTest.java
*/
import java.util.ArrayList;
public class UncheckedWarningOnMatchesTest {
public static void main(String [] args) {
Object o = new ArrayList<UncheckedWarningOnMatchesTest>();
if (o instanceof ArrayList<Integer> ai) { // unchecked conversion
System.out.println("Blah");
}
}
}