minor code improvements

Author: zhongkechen

examples/src/test/java/software/amazon/lambda/durable/examples/CloudBasedIntegrationTest.java

@@ -389,6 +389,7 @@ void testManyAsyncStepsExample() {
         assertEquals(ExecutionStatus.SUCCEEDED, result.getStatus());
 
         var finalResult = result.getResult(String.class);
+        System.out.println("ManyAsyncStepsExample result: " + finalResult);
         assertNotNull(finalResult);
         assertTrue(finalResult.contains("500 async steps"));
         assertTrue(finalResult.contains("249500")); // Sum of 0..499 * 2

sdk/src/main/java/software/amazon/lambda/durable/DurableContext.java

@@ -319,6 +319,7 @@ public DurableLogger getLogger() {
      * Clears the logger's thread properties. Called during context destruction to prevent memory leaks and ensure clean
      * state for subsequent executions.
      */
+    @Override
     public void close() {
         if (logger != null) {
             logger.close();

sdk/src/test/java/software/amazon/lambda/durable/operation/WaitOperationTest.java

@@ -36,8 +36,6 @@ void setUp() {
 
     @Test
     void constructor_withNullDuration_shouldThrow() {
-        var executionManager = mock(ExecutionManager.class);
-
         var exception = assertThrows(
                 IllegalArgumentException.class,
                 () -> new WaitOperation(OPERATION_ID, OPERATION_NAME, null, durableContext));
@@ -47,8 +45,6 @@ void constructor_withNullDuration_shouldThrow() {
 
     @Test
     void constructor_withZeroDuration_shouldThrow() {
-        var executionManager = mock(ExecutionManager.class);
-
         var exception = assertThrows(
                 IllegalArgumentException.class,
                 () -> new WaitOperation(OPERATION_ID, OPERATION_NAME, Duration.ofSeconds(0), durableContext));
@@ -59,8 +55,6 @@ void constructor_withZeroDuration_shouldThrow() {
 
     @Test
     void constructor_withSubSecondDuration_shouldThrow() {
-        var executionManager = mock(ExecutionManager.class);
-
         var exception = assertThrows(
                 IllegalArgumentException.class,
                 () -> new WaitOperation(OPERATION_ID, OPERATION_NAME, Duration.ofMillis(500), durableContext));
@@ -71,8 +65,6 @@ void constructor_withSubSecondDuration_shouldThrow() {
 
     @Test
     void constructor_withValidDuration_shouldPass() {
-        var executionManager = mock(ExecutionManager.class);
-
         var operation = new WaitOperation(OPERATION_ID, OPERATION_NAME, Duration.ofSeconds(10), durableContext);
 
         assertEquals(OPERATION_ID, operation.getOperationId());