java.lang.VerifyError is being thrown with the following code example:
public class Main2 {
public static void main(String[] args) throws InterruptedException {
Async.init();
test()
.thenRun(() -> System.out.println("DONE"))
.exceptionally(t -> {t.printStackTrace();return null;});
Thread.sleep(1000);
}
private static CompletableFuture<TestModel[]> getTestModels() {
return CompletableFuture.completedFuture(new TestModel[] { new TestModel(1), new TestModel(2) });
}
private static CompletableFuture<Void> test() {
TestModel[] testModelArr = await(getTestModels());
String str = "";
for (TestModel myModel: testModelArr) {
str += ":" + await(CompletableFuture.completedFuture(myModel.myInt));
System.out.println(myModel.myInt.doubleValue());
}
System.out.println(str);
return CompletableFuture.completedFuture(null);
}
private static class TestModel {
public final Integer myInt;
private TestModel(Integer myInt) {
this.myInt = myInt;
}
}
}With any of the following changes to the test() method, it no longer throws the error:
- removing
System.out.println(myModel.myInt.doubleValue());:
private static CompletableFuture<Void> test() {
TestModel[] testModelArr = await(getTestModels());
String str = "";
for (TestModel myModel: testModelArr) {
str += ":" + await(CompletableFuture.completedFuture(myModel.myInt));
}
System.out.println(str);
return CompletableFuture.completedFuture(null);
}
- moving up
System.out.println(myModel.myInt.doubleValue()); by 1 line:
private static CompletableFuture<Void> test() {
TestModel[] testModelArr = await(getTestModels());
String str = "";
for (TestModel myModel: testModelArr) {
System.out.println(myModel.myInt.doubleValue());
str += ":" + await(CompletableFuture.completedFuture(myModel.myInt));
}
System.out.println(str);
return CompletableFuture.completedFuture(null);
}
- converting
testModelArr to list for the for loop:
private static CompletableFuture<Void> test() {
TestModel[] testModelArr = await(getTestModels());
String str = "";
for (TestModel myModel: Arrays.asList(testModelArr)) {
str += ":" + await(CompletableFuture.completedFuture(myModel.myInt));
System.out.println(myModel.myInt.doubleValue());
}
System.out.println(str);
return CompletableFuture.completedFuture(null);
}Any idea why this is happening in this specific case?
java.lang.VerifyErroris being thrown with the following code example:With any of the following changes to the
test()method, it no longer throws the error:System.out.println(myModel.myInt.doubleValue());:System.out.println(myModel.myInt.doubleValue());by 1 line:testModelArrto list for theforloop:Any idea why this is happening in this specific case?