diff --git a/src/main/kotlin/org/springframework/data/core/KPropertyExtensions.kt b/src/main/kotlin/org/springframework/data/core/KPropertyExtensions.kt
index b3c306fea..79ce8fd20 100644
--- a/src/main/kotlin/org/springframework/data/core/KPropertyExtensions.kt
+++ b/src/main/kotlin/org/springframework/data/core/KPropertyExtensions.kt
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2025 the original author or authors.
+ * Copyright 2018-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/src/main/kotlin/org/springframework/data/core/KPropertyPath.kt b/src/main/kotlin/org/springframework/data/core/KPropertyPath.kt
index 796d60c29..9d20d9435 100644
--- a/src/main/kotlin/org/springframework/data/core/KPropertyPath.kt
+++ b/src/main/kotlin/org/springframework/data/core/KPropertyPath.kt
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2025 the original author or authors.
+ * Copyright 2018-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/src/test/java/org/springframework/data/domain/ExampleMatcherUnitTests.java b/src/test/java/org/springframework/data/domain/ExampleMatcherUnitTests.java
index 0fcab37f2..da0044dbd 100755
--- a/src/test/java/org/springframework/data/domain/ExampleMatcherUnitTests.java
+++ b/src/test/java/org/springframework/data/domain/ExampleMatcherUnitTests.java
@@ -121,7 +121,7 @@ class ExampleMatcherUnitTests {
 		assertThat(matcher.getIgnoredPaths()).hasSize(2);
 	}
 
-	@Test //
+	@Test // GH-3400
 	void ignoredPropertyPathsShouldReturnUniqueProperties() {
 
 		matcher = matching().withIgnorePaths(Person::getFirstname, Person::getLastname, Person::getFirstname);
diff --git a/src/test/java/org/springframework/data/domain/SortUnitTests.java b/src/test/java/org/springframework/data/domain/SortUnitTests.java
index 969643a94..1c96a027f 100755
--- a/src/test/java/org/springframework/data/domain/SortUnitTests.java
+++ b/src/test/java/org/springframework/data/domain/SortUnitTests.java
@@ -208,7 +208,7 @@ class SortUnitTests {
 		assertThat(result.isIgnoreCase()).isEqualTo(source.isIgnoreCase());
 	}
 
-	@Test
+	@Test // GH-3400
 	void createsNewOrderForDifferentPropertyPath() {
 
 		var source = Order.desc("foo").nullsFirst().ignoreCase();
diff --git a/src/test/kotlin/org/springframework/data/core/KPropertyExtensionsTests.kt b/src/test/kotlin/org/springframework/data/core/KPropertyExtensionsTests.kt
index e358418c2..a4190d2d1 100644
--- a/src/test/kotlin/org/springframework/data/core/KPropertyExtensionsTests.kt
+++ b/src/test/kotlin/org/springframework/data/core/KPropertyExtensionsTests.kt
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2025 the original author or authors.
+ * Copyright 2018-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/src/test/kotlin/org/springframework/data/core/KPropertyReferenceUnitTests.kt b/src/test/kotlin/org/springframework/data/core/KPropertyReferenceUnitTests.kt
index 22ec18fc7..e63cbb20f 100644
--- a/src/test/kotlin/org/springframework/data/core/KPropertyReferenceUnitTests.kt
+++ b/src/test/kotlin/org/springframework/data/core/KPropertyReferenceUnitTests.kt
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2025-present the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.springframework.data.core
 
 import org.assertj.core.api.Assertions.assertThat
diff --git a/src/test/kotlin/org/springframework/data/core/KTypedPropertyPathUnitTests.kt b/src/test/kotlin/org/springframework/data/core/KTypedPropertyPathUnitTests.kt
index 4dcbaefbb..8375914e8 100644
--- a/src/test/kotlin/org/springframework/data/core/KTypedPropertyPathUnitTests.kt
+++ b/src/test/kotlin/org/springframework/data/core/KTypedPropertyPathUnitTests.kt
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2025-present the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.springframework.data.core
 
 import org.junit.jupiter.params.ParameterizedTest
diff --git a/src/test/kotlin/org/springframework/data/core/PropertyReferenceKtUnitTests.kt b/src/test/kotlin/org/springframework/data/core/PropertyReferenceKtUnitTests.kt
index e30b92fc1..9f19f9692 100644
--- a/src/test/kotlin/org/springframework/data/core/PropertyReferenceKtUnitTests.kt
+++ b/src/test/kotlin/org/springframework/data/core/PropertyReferenceKtUnitTests.kt
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2025-present the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.springframework.data.core
 
 import org.assertj.core.api.Assertions.assertThat
diff --git a/src/test/kotlin/org/springframework/data/core/TypedPropertyPathKtUnitTests.kt b/src/test/kotlin/org/springframework/data/core/TypedPropertyPathKtUnitTests.kt
index 3dd5043ed..1bdf963fc 100644
--- a/src/test/kotlin/org/springframework/data/core/TypedPropertyPathKtUnitTests.kt
+++ b/src/test/kotlin/org/springframework/data/core/TypedPropertyPathKtUnitTests.kt
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2025-present the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.springframework.data.core
 
 import org.assertj.core.api.Assertions.assertThat