diff --git a/release-tools/src/main/java/org/springframework/data/release/git/GitOperations.java b/release-tools/src/main/java/org/springframework/data/release/git/GitOperations.java
index 8b6cb8f..5da4433 100644
--- a/release-tools/src/main/java/org/springframework/data/release/git/GitOperations.java
+++ b/release-tools/src/main/java/org/springframework/data/release/git/GitOperations.java
@@ -603,7 +603,7 @@ public class GitOperations {
 				checkout(project, branch);
 			} catch (RuntimeException o_O) {
 
-				logger.log(project, "Couldn't check out branch %s. Skipping cherrypick of commit %s.", branch, id.getName());
+				logger.warn(project, "Couldn't check out branch %s. Skipping cherrypick of commit %s.", branch, id.getName());
 				return;
 			}
 
diff --git a/release-tools/src/main/java/org/springframework/data/release/utils/ExecutionUtils.java b/release-tools/src/main/java/org/springframework/data/release/utils/ExecutionUtils.java
index 4356637..29f7ce6 100644
--- a/release-tools/src/main/java/org/springframework/data/release/utils/ExecutionUtils.java
+++ b/release-tools/src/main/java/org/springframework/data/release/utils/ExecutionUtils.java
@@ -18,6 +18,7 @@ package org.springframework.data.release.utils;
 import lombok.extern.slf4j.Slf4j;
 
 import java.util.Collection;
+import java.util.Objects;
 import java.util.concurrent.CompletableFuture;
 import java.util.function.Function;
 import java.util.stream.Collector;
@@ -28,7 +29,7 @@ import org.springframework.util.Assert;
 
 /**
  * Utility method to easily execute functionality in parallel.
- * 
+ *
  * @author Oliver Gierke
  */
 @Slf4j
@@ -38,7 +39,7 @@ public class ExecutionUtils {
 	 * Runs the given {@link ConsumerWithException} for each element in the given {@link Iterable} in parallel waiting for
 	 * all executions to complete before returning. Exceptions being thrown in the {@link ConsumerWithException} will be
 	 * converted into {@link RuntimeException}s.
-	 * 
+	 *
 	 * @param streamable must not be {@literal null}.
 	 * @param consumer must not be {@literal null}.
 	 */
@@ -55,13 +56,13 @@ public class ExecutionUtils {
 						log.error(o_O.getMessage(), o_O);
 						throw new RuntimeException(o_O);
 					}
-				})).collect(Collectors.toList()).forEach(future -> future.join());
+				})).collect(Collectors.toList()).forEach(CompletableFuture::join);
 	}
 
 	/**
 	 * Runs the given {@link Function} for each element in the given {@link Streamable} in parallel waiting for all
 	 * executions to complete before returning the results.
-	 * 
+	 *
 	 * @param streamable must not be {@literal null}.
 	 * @param function must not be {@literal null}.
 	 * @return
@@ -78,10 +79,10 @@ public class ExecutionUtils {
 
 		return streamable.stream().//
 				map(it -> CompletableFuture.supplyAsync(() -> function.apply(it))).//
-				filter(it -> it != null).//
+				filter(Objects::nonNull).//
 				collect(Collectors.toList()).//
 				stream().//
-				map(future -> future.join()).//
+				map(CompletableFuture::join).//
 				collect(collector);
 	}
 
diff --git a/release-tools/src/main/java/org/springframework/data/release/utils/Logger.java b/release-tools/src/main/java/org/springframework/data/release/utils/Logger.java
index 90f449a..6e90fe4 100644
--- a/release-tools/src/main/java/org/springframework/data/release/utils/Logger.java
+++ b/release-tools/src/main/java/org/springframework/data/release/utils/Logger.java
@@ -54,19 +54,19 @@ public class Logger {
 	}
 
 	public void warn(ModuleIteration module, Object template, Object... args) {
-		log(module.getProject(), template, args);
+		warn(module.getProject(), template, args);
 	}
 
 	public void warn(Project project, Object template, Object... args) {
-		log(project.getName(), template, args);
+		warn(project.getName(), template, args);
 	}
 
 	public void warn(TrainIteration iteration, Object template, Object... args) {
-		log(iteration.toString(), template, args);
+		warn(iteration.toString(), template, args);
 	}
 
 	public void warn(Train train, Object template, Object... args) {
-		log(train.getName(), template, args);
+		warn(train.getName(), template, args);
 	}
 
 	public void warn(String context, Object template, Object... args) {