diff --git a/spring-cloud-sleuth-api/src/main/java/org/springframework/cloud/sleuth/exporter/FinishedSpan.java b/spring-cloud-sleuth-api/src/main/java/org/springframework/cloud/sleuth/exporter/FinishedSpan.java
index 5daee0411..55bfb18ee 100644
--- a/spring-cloud-sleuth-api/src/main/java/org/springframework/cloud/sleuth/exporter/FinishedSpan.java
+++ b/spring-cloud-sleuth-api/src/main/java/org/springframework/cloud/sleuth/exporter/FinishedSpan.java
@@ -1,114 +1,114 @@
-/*
- * Copyright 2013-2021 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.cloud.sleuth.exporter;
-
-import java.util.Collection;
-import java.util.Map;
-
-import org.springframework.cloud.sleuth.Span;
-import org.springframework.lang.Nullable;
-
-/**
- * This API is inspired by OpenZipkin Brave (from {code MutableSpan}).
- *
- * Represents a span that has been finished and is ready to be sent to an external
- * location (e.g. Zipkin).
- *
- * @author OpenZipkin Brave Authors
- * @author Marcin Grzejszczak
- * @since 3.0.0
- */
-public interface FinishedSpan {
-
-	/**
-	 * @return span's name
-	 */
-	String getName();
-
-	/**
-	 * @return span's start timestamp
-	 */
-	long getStartTimestamp();
-
-	/**
-	 * @return span's end timestamp
-	 */
-	long getEndTimestamp();
-
-	/**
-	 * @return span's tags
-	 */
-	Map<String, String> getTags();
-
-	/**
-	 * @return span's events as timestamp to value mapping
-	 */
-	Collection<Map.Entry<Long, String>> getEvents();
-
-	/**
-	 * @return span's span id
-	 */
-	String getSpanId();
-
-	/**
-	 * @return span's parent id or {@code null} if not set
-	 */
-	@Nullable
-	String getParentId();
-
-	/**
-	 * @return span's remote ip
-	 */
-	@Nullable
-	String getRemoteIp();
-
-	/**
-	 * @return span's local ip
-	 */
-	@Nullable
-	default String getLocalIp() {
-		return null;
-	}
-
-	/**
-	 * @return span's remote port
-	 */
-	int getRemotePort();
-
-	/**
-	 * @return span's trace id
-	 */
-	String getTraceId();
-
-	/**
-	 * @return corresponding error or {@code null} if one was not thrown
-	 */
-	@Nullable
-	Throwable getError();
-
-	/**
-	 * @return span's kind
-	 */
-	Span.Kind getKind();
-
-	/**
-	 * @return remote service name or {@code null} if not set
-	 */
-	@Nullable
-	String getRemoteServiceName();
-
-}
+/*
+ * Copyright 2013-2021 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.cloud.sleuth.exporter;
+
+import java.util.Collection;
+import java.util.Map;
+
+import org.springframework.cloud.sleuth.Span;
+import org.springframework.lang.Nullable;
+
+/**
+ * This API is inspired by OpenZipkin Brave (from {code MutableSpan}).
+ *
+ * Represents a span that has been finished and is ready to be sent to an external
+ * location (e.g. Zipkin).
+ *
+ * @author OpenZipkin Brave Authors
+ * @author Marcin Grzejszczak
+ * @since 3.0.0
+ */
+public interface FinishedSpan {
+
+	/**
+	 * @return span's name
+	 */
+	String getName();
+
+	/**
+	 * @return span's start timestamp
+	 */
+	long getStartTimestamp();
+
+	/**
+	 * @return span's end timestamp
+	 */
+	long getEndTimestamp();
+
+	/**
+	 * @return span's tags
+	 */
+	Map<String, String> getTags();
+
+	/**
+	 * @return span's events as timestamp to value mapping
+	 */
+	Collection<Map.Entry<Long, String>> getEvents();
+
+	/**
+	 * @return span's span id
+	 */
+	String getSpanId();
+
+	/**
+	 * @return span's parent id or {@code null} if not set
+	 */
+	@Nullable
+	String getParentId();
+
+	/**
+	 * @return span's remote ip
+	 */
+	@Nullable
+	String getRemoteIp();
+
+	/**
+	 * @return span's local ip
+	 */
+	@Nullable
+	default String getLocalIp() {
+		return null;
+	}
+
+	/**
+	 * @return span's remote port
+	 */
+	int getRemotePort();
+
+	/**
+	 * @return span's trace id
+	 */
+	String getTraceId();
+
+	/**
+	 * @return corresponding error or {@code null} if one was not thrown
+	 */
+	@Nullable
+	Throwable getError();
+
+	/**
+	 * @return span's kind
+	 */
+	Span.Kind getKind();
+
+	/**
+	 * @return remote service name or {@code null} if not set
+	 */
+	@Nullable
+	String getRemoteServiceName();
+
+}