In a multithreaded environment, when using giveMeOne, ConcurrentModificationException and JqwikException exceptions will occur.

[NinthCode]

Describe the bug

In a multithreaded environment, when using giveMeOne, ConcurrentModificationException and JqwikException exceptions will occur.

Your environment

• Fixture Monkey 1.0.21
• Java 17

Steps to reproduce

` @test
public void test() throws Exception {
CountDownLatch latch = new CountDownLatch(100);
CountDownLatch mLatch = new CountDownLatch(100);
for (int i = 0; i < 100; i++) {
final Integer ii = i;
new Thread(() -> {
try {
latch.await();
FixtureMonkey fixtureMonkey = FixtureMonkey.builder().defaultNotNull(true).objectIntrospector(FieldReflectionArbitraryIntrospector.INSTANCE).build();
System.out.println(ii + JSON.toJSONString(fixtureMonkey.giveMeOne(tt.class)));
} catch (Exception e) {
e.printStackTrace();
} finally {
mLatch.countDown();
}
}).start();
latch.countDown();
}
mLatch.await();
}

@Data
public static class tt {
    public String name;
}`

Expected behaviour

Running normally.

Actual behaviour

java.util.ConcurrentModificationException at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1221) at net.jqwik.engine.execution.lifecycle.StoreRepository.addStore(StoreRepository.java:56) at net.jqwik.engine.execution.lifecycle.StoreRepository.create(StoreRepository.java:51) at net.jqwik.engine.facades.StoreFacadeImpl.create(StoreFacadeImpl.java:19) at net.jqwik.api.lifecycle.Store.create(Store.java:67)
and
net.jqwik.api.JqwikException: You cannot create Store(net.jqwik.engine.facades.Memoize, PROPERTY, [jqwik:samples]): [null] with identifier [class net.jqwik.engine.facades.Memoize]. It conflicts with existing Optional[Store(net.jqwik.engine.facades.Memoize, PROPERTY, [jqwik:samples]): [{}]] at net.jqwik.engine.execution.lifecycle.StoreRepository.lambda$addStore$2(StoreRepository.java:72) at java.base/java.util.Optional.ifPresent(Optional.java:178) at net.jqwik.engine.execution.lifecycle.StoreRepository.addStore(StoreRepository.java:65) at net.jqwik.engine.execution.lifecycle.StoreRepository.create(StoreRepository.java:51) at net.jqwik.engine.facades.StoreFacadeImpl.create(StoreFacadeImpl.java:19)

[seongahjo]

@NinthCode
Hello, it is fixed in 1.0.25.

Please check that the problem has been resolved.
Let me know if there is another problem.

Thank you.

[NinthCode]

@NinthCode Hello, it is fixed in 1.0.25.

Please check that the problem has been resolved. Let me know if there is another problem.

Thank you.

@seongahjo
Hello! Thank you for your fix. It seems that the problem has been solved.