Fix the expired condition in ExpirableValue

Author: stIncMale

driver-core/src/main/com/mongodb/internal/ExpirableValue.java

@@ -36,7 +36,7 @@ public final class ExpirableValue<T> {
     private final long deadline;
 
     public static <T> ExpirableValue<T> expired() {
-        return new ExpirableValue<>(null, Duration.ofSeconds(-1), System.nanoTime());
+        return new ExpirableValue<>(null, Duration.ZERO, System.nanoTime());
     }
 
     public static <T> ExpirableValue<T> expirable(final T value, final Duration lifetime) {
@@ -61,7 +61,7 @@ public Optional<T> getValue() {
 
     @VisibleForTesting(otherwise = PRIVATE)
     Optional<T> getValue(final long currentNanoTime) {
-        if (currentNanoTime - deadline > 0) {
+        if (currentNanoTime - deadline >= 0) {
             return Optional.empty();
         } else {
             return Optional.of(value);

driver-core/src/test/unit/com/mongodb/internal/ExpirableValueTest.java

@@ -41,6 +41,7 @@ void testExpirable() {
                 () -> assertThrows(AssertionError.class, () -> expirable(null, Duration.ofNanos(1))),
                 () -> assertThrows(AssertionError.class, () -> expirable(1, null)),
                 () -> assertFalse(expirable(1, Duration.ofNanos(-1)).getValue().isPresent()),
+                () -> assertFalse(expirable(1, Duration.ZERO).getValue().isPresent()),
                 () -> assertEquals(1, expirable(1, Duration.ofSeconds(1)).getValue().get()),
                 () -> {
                     ExpirableValue<Integer> expirableValue = expirable(1, Duration.ofNanos(1));