diff --git a/tests/org.eclipse.passage.lic.bc.tests/src/org/eclipse/passage/lic/internal/bc/tests/BcStreamCodecTest.java b/tests/org.eclipse.passage.lic.bc.tests/src/org/eclipse/passage/lic/internal/bc/tests/BcStreamCodecTest.java
index af0c8033c..524a1c85e 100644
--- a/tests/org.eclipse.passage.lic.bc.tests/src/org/eclipse/passage/lic/internal/bc/tests/BcStreamCodecTest.java
+++ b/tests/org.eclipse.passage.lic.bc.tests/src/org/eclipse/passage/lic/internal/bc/tests/BcStreamCodecTest.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2020, 2021 ArSysOp
+ * Copyright (c) 2020, 2024 ArSysOp
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License 2.0 which is available at
@@ -9,6 +9,7 @@
  *
  * Contributors:
  *     ArSysOp - initial API and implementation
+ *     ArSysOp - further support
  *******************************************************************************/
 package org.eclipse.passage.lic.internal.bc.tests;
 
@@ -32,6 +33,7 @@
 import org.junit.Rule;
 import org.junit.rules.TemporaryFolder;
 
+@SuppressWarnings("restriction")
 abstract class BcStreamCodecTest {
 
 	@Rule
diff --git a/tests/org.eclipse.passage.lic.bc.tests/src/org/eclipse/passage/lic/internal/bc/tests/KeyPairGenerationTest.java b/tests/org.eclipse.passage.lic.bc.tests/src/org/eclipse/passage/lic/internal/bc/tests/KeyPairGenerationTest.java
index b12d91e8b..40208aac2 100644
--- a/tests/org.eclipse.passage.lic.bc.tests/src/org/eclipse/passage/lic/internal/bc/tests/KeyPairGenerationTest.java
+++ b/tests/org.eclipse.passage.lic.bc.tests/src/org/eclipse/passage/lic/internal/bc/tests/KeyPairGenerationTest.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2020, 2021 ArSysOp
+ * Copyright (c) 2020, 2024 ArSysOp
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License 2.0 which is available at
@@ -9,6 +9,7 @@
  *
  * Contributors:
  *     ArSysOp - initial API and implementation
+ *     ArSysOp - further support
  *******************************************************************************/
 package org.eclipse.passage.lic.internal.bc.tests;
 
@@ -33,6 +34,7 @@
 import org.eclipse.passage.lic.bc.BcStreamCodec;
 import org.junit.Test;
 
+@SuppressWarnings("restriction")
 public final class KeyPairGenerationTest extends BcStreamCodecTest {
 
 	@Test
diff --git a/tests/org.eclipse.passage.lic.bc.tests/src/org/eclipse/passage/lic/internal/bc/tests/StreamDecodingTest.java b/tests/org.eclipse.passage.lic.bc.tests/src/org/eclipse/passage/lic/internal/bc/tests/StreamDecodingTest.java
index 327dceca0..7ea2e8c01 100644
--- a/tests/org.eclipse.passage.lic.bc.tests/src/org/eclipse/passage/lic/internal/bc/tests/StreamDecodingTest.java
+++ b/tests/org.eclipse.passage.lic.bc.tests/src/org/eclipse/passage/lic/internal/bc/tests/StreamDecodingTest.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2020, 2021 ArSysOp
+ * Copyright (c) 2020, 2024 ArSysOp
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License 2.0 which is available at
@@ -9,6 +9,7 @@
  *
  * Contributors:
  *     ArSysOp - initial API and implementation
+ *     ArSysOp - further support
  *******************************************************************************/
 package org.eclipse.passage.lic.internal.bc.tests;
 
@@ -35,6 +36,7 @@
 import org.eclipse.passage.lic.bc.BcStreamCodec;
 import org.junit.Test;
 
+@SuppressWarnings("restriction")
 public final class StreamDecodingTest extends BcStreamCodecTest {
 
 	@Test
diff --git a/tests/org.eclipse.passage.lic.bc.tests/src/org/eclipse/passage/lic/internal/bc/tests/StreamEncodingTest.java b/tests/org.eclipse.passage.lic.bc.tests/src/org/eclipse/passage/lic/internal/bc/tests/StreamEncodingTest.java
index decf5c5c9..ad59e6c5c 100644
--- a/tests/org.eclipse.passage.lic.bc.tests/src/org/eclipse/passage/lic/internal/bc/tests/StreamEncodingTest.java
+++ b/tests/org.eclipse.passage.lic.bc.tests/src/org/eclipse/passage/lic/internal/bc/tests/StreamEncodingTest.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2020, 2021 ArSysOp
+ * Copyright (c) 2020, 2024 ArSysOp
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License 2.0 which is available at
@@ -9,6 +9,7 @@
  *
  * Contributors:
  *     ArSysOp - initial API and implementation
+ *     ArSysOp - further support
  *******************************************************************************/
 package org.eclipse.passage.lic.internal.bc.tests;
 
@@ -33,6 +34,7 @@
 import org.eclipse.passage.lic.bc.BcStreamCodec;
 import org.junit.Test;
 
+@SuppressWarnings("restriction")
 public final class StreamEncodingTest extends BcStreamCodecTest {
 
 	@Test