Fix Sonar Issues

Author: garyrussell

spring-kafka-test/src/main/java/org/springframework/kafka/test/EmbeddedKafkaBroker.java

@@ -147,8 +147,10 @@ public class EmbeddedKafkaBroker implements InitializingBean, DisposableBean {
 				method = TestUtils.class.getDeclaredMethod("boundPort", KafkaBroker.class, SecurityProtocol.class);
 			}
 			catch (NoSuchMethodException | SecurityException e1) {
-				throw new IllegalStateException("Failed to determine TestUtils.boundPort() method; client version: "
+				IllegalStateException isx = new IllegalStateException("Failed to determine TestUtils.boundPort() method; client version: "
 						+ AppInfoParser.getVersion(), e);
+				isx.addSuppressed(e1);
+				throw isx;
 			}
 		}
 		BOUND_PORT_METHOD = method;

spring-kafka/src/main/java/org/springframework/kafka/listener/KafkaMessageListenerContainer.java

@@ -1939,10 +1939,8 @@ else if (this.syncCommits) {
 		private void commitAsync(Map<TopicPartition, OffsetAndMetadata> commits) {
 			this.consumer.commitAsync(commits, (offsetsAttempted, exception) -> {
 				this.commitCallback.onComplete(offsetsAttempted, exception);
-				if (exception == null) {
-					if (this.fixTxOffsets) {
-						this.lastCommits.putAll(commits);
-					}
+				if (exception == null && this.fixTxOffsets) {
+					this.lastCommits.putAll(commits);
 				}
 			});
 		}