diff --git a/rskj-core/src/test/java/co/rsk/net/SnapshotProcessorTest.java b/rskj-core/src/test/java/co/rsk/net/SnapshotProcessorTest.java
index d9b7d80c071..7c8e5c7e6fb 100644
--- a/rskj-core/src/test/java/co/rsk/net/SnapshotProcessorTest.java
+++ b/rskj-core/src/test/java/co/rsk/net/SnapshotProcessorTest.java
@@ -1,3 +1,21 @@
+/*
+ * This file is part of RskJ
+ * Copyright (C) 2024 RSK Labs Ltd.
+ * (derived from ethereumJ library, Copyright (c) 2016 <ether.camp>)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
 package co.rsk.net;
 
 import co.rsk.core.BlockDifficulty;
@@ -12,16 +30,13 @@
 import org.ethereum.db.BlockStore;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
-import org.mockito.ArgumentCaptor;
 
 import java.net.InetAddress;
 import java.net.UnknownHostException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
-import java.util.concurrent.CountDownLatch;
 
-import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.mockito.Mockito.*;
 
 class SnapshotProcessorTest {
diff --git a/rskj-core/src/test/java/co/rsk/trie/TrieDTOInOrderIteratorTest.java b/rskj-core/src/test/java/co/rsk/trie/TrieDTOInOrderIteratorTest.java
index 3563b137cea..d6429475c72 100644
--- a/rskj-core/src/test/java/co/rsk/trie/TrieDTOInOrderIteratorTest.java
+++ b/rskj-core/src/test/java/co/rsk/trie/TrieDTOInOrderIteratorTest.java
@@ -1,3 +1,21 @@
+/*
+ * This file is part of RskJ
+ * Copyright (C) 2024 RSK Labs Ltd.
+ * (derived from ethereumJ library, Copyright (c) 2016 <ether.camp>)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
 package co.rsk.trie;
 
 import org.ethereum.datasource.HashMapDB;