diff --git a/.gitignore b/.gitignore
index 8b02b53e..62513534 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,4 +9,5 @@ target/
 .idea
 nb-configuration.xml
 .DS_Store
-.checkstyle
\ No newline at end of file
+.checkstyle
+api/.flattened-pom.xml
diff --git a/tck/src/main/java/ee/jakarta/tck/concurrent/api/Trigger/TriggerTests.java b/tck/src/main/java/ee/jakarta/tck/concurrent/api/Trigger/TriggerTests.java
index 2270f4bf..c387553c 100644
--- a/tck/src/main/java/ee/jakarta/tck/concurrent/api/Trigger/TriggerTests.java
+++ b/tck/src/main/java/ee/jakarta/tck/concurrent/api/Trigger/TriggerTests.java
@@ -61,8 +61,11 @@ public void reset() {
 	 * @assertion_ids: CONCURRENCY:JAVADOC:46
 	 * 
 	 * @test_Strategy: Retrieve the next time that the task should run after.
+         *  fix: https://github.com/jakartaee/concurrency/pull/222
+         *  Accepted TCK challenge: https://github.com/jakartaee/concurrency/issues/228
+         *  Can be reenabled in next release of Jakarta Concurrency
 	 */
-	@Test
+	@Test(enabled = false)
 	public void triggerGetNextRunTimeTest() throws Exception {
 		ScheduledFuture sf = TestUtil.getManagedScheduledExecutorService().schedule(new CounterRunnableTask(),
 				new CommonTriggers.TriggerFixedRate(new Date(), TestConstants.PollInterval.toMillis()));
diff --git a/tck/src/main/java/ee/jakarta/tck/concurrent/spec/ManagedExecutorService/resourcedef/ManagedExecutorDefinitionTests.java b/tck/src/main/java/ee/jakarta/tck/concurrent/spec/ManagedExecutorService/resourcedef/ManagedExecutorDefinitionTests.java
index 172364b7..199b7874 100644
--- a/tck/src/main/java/ee/jakarta/tck/concurrent/spec/ManagedExecutorService/resourcedef/ManagedExecutorDefinitionTests.java
+++ b/tck/src/main/java/ee/jakarta/tck/concurrent/spec/ManagedExecutorService/resourcedef/ManagedExecutorDefinitionTests.java
@@ -99,7 +99,8 @@ public void testAsynchronousMethodVoidReturnType() {
     	runTest(baseURL);
     }
 
-	@Test
+        // TCK Accepted Challenge: https://github.com/jakartaee/concurrency/issues/224
+	@Test(enabled = false)
     public void testCompletedFuture() {
     	runTest(baseURL);
     }
diff --git a/tck/src/main/java/ee/jakarta/tck/concurrent/spec/ManagedExecutorService/security/SecurityTests.java b/tck/src/main/java/ee/jakarta/tck/concurrent/spec/ManagedExecutorService/security/SecurityTests.java
index df6c8ac0..506de382 100644
--- a/tck/src/main/java/ee/jakarta/tck/concurrent/spec/ManagedExecutorService/security/SecurityTests.java
+++ b/tck/src/main/java/ee/jakarta/tck/concurrent/spec/ManagedExecutorService/security/SecurityTests.java
@@ -66,8 +66,12 @@ protected String getServletPath() {
 	 * @test_Strategy: login in a servlet with username "javajoe(in role manager)",
 	 * then submit a task by ManagedExecutorService in which call a ejb that
 	 * requires role manager.
+         *
+         * Accepted TCK challenge: https://github.com/jakartaee/concurrency/issues/227
+         * fix: https://github.com/jakartaee/concurrency/pull/218  
+         * Can be reenabled in next release of Concurrency
 	 */
-	@Test
+	@Test(enabled = false)
 	public void managedExecutorServiceAPISecurityTest() {
 		runTest(baseURL);
 	}
diff --git a/tck/src/main/java/ee/jakarta/tck/concurrent/spec/ManagedScheduledExecutorService/resourcedef/ManagedScheduledExecutorDefinitionTests.java b/tck/src/main/java/ee/jakarta/tck/concurrent/spec/ManagedScheduledExecutorService/resourcedef/ManagedScheduledExecutorDefinitionTests.java
index 49c00f09..38a2d27f 100644
--- a/tck/src/main/java/ee/jakarta/tck/concurrent/spec/ManagedScheduledExecutorService/resourcedef/ManagedScheduledExecutorDefinitionTests.java
+++ b/tck/src/main/java/ee/jakarta/tck/concurrent/spec/ManagedScheduledExecutorService/resourcedef/ManagedScheduledExecutorDefinitionTests.java
@@ -95,8 +95,8 @@ public void testAsynchronousMethodRunsWithContext() {
     public void testAsynchronousMethodWithMaxAsync3() {
 		runTest(baseURL);
     }
-
-	@Test
+        // Accepted TCK Challenge: https://github.com/jakartaee/concurrency/issues/224
+	@Test(enabled = false)
     public void testCompletedFutureMSE() {
 		runTest(baseURL);
     }
diff --git a/tck/src/main/java/ee/jakarta/tck/concurrent/spec/ManagedScheduledExecutorService/security/SecurityTests.java b/tck/src/main/java/ee/jakarta/tck/concurrent/spec/ManagedScheduledExecutorService/security/SecurityTests.java
index afcccd1e..66718b5d 100644
--- a/tck/src/main/java/ee/jakarta/tck/concurrent/spec/ManagedScheduledExecutorService/security/SecurityTests.java
+++ b/tck/src/main/java/ee/jakarta/tck/concurrent/spec/ManagedScheduledExecutorService/security/SecurityTests.java
@@ -63,8 +63,12 @@ protected String getServletPath() {
 	 * @test_Strategy: login in a servlet with username "javajoe(in role manager)",
 	 * then submit a task by ManagedScheduledExecutorService in which call a ejb
 	 * that requires role manager.
+         *
+         * Accepted TCK challenge: https://github.com/jakartaee/concurrency/issues/227
+         * fix: https://github.com/jakartaee/concurrency/pull/221
+         * Can be reenabled in the next release of Jakarta Concurrency
 	 */
-	@Test
+	@Test(enabled = false)
 	public void managedScheduledExecutorServiceAPISecurityTest() {
 		runTest(baseURL);
 	}
diff --git a/tck/src/main/java/ee/jakarta/tck/concurrent/spec/ManagedThreadFactory/resourcedef/ManagedThreadFactoryDefinitionTests.java b/tck/src/main/java/ee/jakarta/tck/concurrent/spec/ManagedThreadFactory/resourcedef/ManagedThreadFactoryDefinitionTests.java
index 297035f9..7087ca5d 100644
--- a/tck/src/main/java/ee/jakarta/tck/concurrent/spec/ManagedThreadFactory/resourcedef/ManagedThreadFactoryDefinitionTests.java
+++ b/tck/src/main/java/ee/jakarta/tck/concurrent/spec/ManagedThreadFactory/resourcedef/ManagedThreadFactoryDefinitionTests.java
@@ -79,12 +79,14 @@ protected String getServletPath() {
 		return "ManagedThreadFactoryDefinitionServlet";
 	}
 	
-	@Test
+        // Accepted TCK challenge: https://github.com/jakartaee/concurrency/issues/226
+	@Test(enabled = false)
     public void testManagedThreadFactoryDefinitionAllAttributes() throws Throwable {
 		runTest(baseURL);
     }
 	
-	@Test
+        // Accepted TCK challenge: https://github.com/jakartaee/concurrency/issues/226
+	@Test(enabled = false)
     public void testManagedThreadFactoryDefinitionAllAttributesEJB() throws Throwable {
 		URLBuilder requestURL = URLBuilder.get().withBaseURL(ejbContextURL).withPaths("ManagedThreadFactoryDefinitionOnEJBServlet").withTestName(testName);
 		runTest(requestURL);
@@ -101,12 +103,14 @@ public void testManagedThreadFactoryDefinitionDefaultsEJB() throws Throwable {
 		runTest(requestURL);
     }
 
-	@Test
+        // Accepted TCK challenge: https://github.com/jakartaee/concurrency/issues/226
+	@Test(enabled = false)
     public void testParallelStreamBackedByManagedThreadFactory() throws Throwable {
 		runTest(baseURL);
     }
 	
-	@Test
+        // Accepted TCK challenge: https://github.com/jakartaee/concurrency/issues/226
+	@Test(enabled = false)
     public void testParallelStreamBackedByManagedThreadFactoryEJB() throws Throwable {
 		URLBuilder requestURL = URLBuilder.get().withBaseURL(ejbContextURL).withPaths("ManagedThreadFactoryDefinitionOnEJBServlet").withTestName(testName);
 		runTest(requestURL);
diff --git a/tck/src/main/java/ee/jakarta/tck/concurrent/spec/Platform/dd/DeploymentDescriptorTests.java b/tck/src/main/java/ee/jakarta/tck/concurrent/spec/Platform/dd/DeploymentDescriptorTests.java
index 9650c393..078c27ad 100644
--- a/tck/src/main/java/ee/jakarta/tck/concurrent/spec/Platform/dd/DeploymentDescriptorTests.java
+++ b/tck/src/main/java/ee/jakarta/tck/concurrent/spec/Platform/dd/DeploymentDescriptorTests.java
@@ -87,7 +87,8 @@ public void testDeploymentDescriptorDefinesManagedScheduledExecutor() {
         runTest(baseURL);
     }
 
-    @Test
+    // Accepted TCK challenge: https://github.com/jakartaee/concurrency/issues/226
+    @Test(enabled = false)
     public void testDeploymentDescriptorDefinesManagedThreadFactory() {
         runTest(baseURL);
     }