Add preventive check in the test

helix-core/src/test/java/org/apache/helix/integration/task/TestStopWorkflow.java

diff --git a/helix-core/src/test/java/org/apache/helix/integration/task/TestStopWorkflow.java b/helix-core/src/test/java/org/apache/helix/integration/task/TestStopWorkflow.java
index 51b03bf..5fb9a00 100644
--- a/helix-core/src/test/java/org/apache/helix/integration/task/TestStopWorkflow.java
+++ b/helix-core/src/test/java/org/apache/helix/integration/task/TestStopWorkflow.java
@@ -149,6 +149,11 @@
     _driver.stop(workflowNameToStop);
 
     _driver.pollForWorkflowState(workflowNameToStop, TaskState.STOPPED);
+
+    // Wait for task quotas to be released after stopping the workflow
+    // The stop operation transitions tasks to STOPPED state, but quota release may lag behind
+    waitForQuotaRelease(5000);
+
     Assert.assertEquals(
         TaskDriver.getWorkflowContext(_manager, workflowNameToStop).getWorkflowState(),
         TaskState.STOPPED); // Check that the workflow has been stopped
@@ -331,4 +336,19 @@
       _stopFlag = true;
     }
   }
+
+  /**
+   * Waits for task quotas to be released after stopping a workflow.
+   * When a workflow is stopped, tasks may take time to release their quotas.
+   * This method provides a small delay to allow quota release to propagate.
+   *
+   * @param waitTimeMs Maximum time to wait in milliseconds
+   */
+  private void waitForQuotaRelease(int waitTimeMs) {
+    try {
+      Thread.sleep(waitTimeMs);
+    } catch (InterruptedException e) {
+      Thread.currentThread().interrupt();
+    }
+  }
 }