DATAREDIS-1104 - Suppress connection close failures when unbinding a connection.

We now no longer propagate exceptions that happen during connection disposal but instead we log them on DEBUG level to avoid exception masking.

src/test/java/org/springframework/data/redis/core/RedisConnectionUtilsUnitTests.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2020 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.redis.core;
+
+import static org.mockito.Mockito.*;
+
+import org.junit.Test;
+
+import org.springframework.data.redis.connection.RedisConnection;
+import org.springframework.data.redis.connection.RedisConnectionFactory;
+
+/**
+ * Unit tests for {@link RedisConnectionUtils}.
+ *
+ * @author Mark Paluch
+ */
+public class RedisConnectionUtilsUnitTests {
+
+	@Test // DATAREDIS-1104
+	public void shouldSilentlyCloseRedisConnection() {
+
+		RedisConnection connectionMock = mock(RedisConnection.class);
+		RedisConnectionFactory factoryMock = mock(RedisConnectionFactory.class);
+
+		doThrow(new IllegalStateException()).when(connectionMock).close();
+
+		RedisConnectionUtils.releaseConnection(connectionMock, factoryMock, false);
+
+		verify(connectionMock).close();
+	}
+}