Remove usage of obsolete NestedIOException

Related to spring-projects/spring-framework#28198

Replaces its usage with the standard `IOException`
which has supported a root cause since Java 6.

Author: garyrussell

spring-amqp/src/main/java/org/springframework/amqp/support/converter/SerializerMessageConverter.java

@@ -22,16 +22,17 @@
 import java.io.ObjectInputStream;
 import java.io.ObjectStreamClass;
 import java.io.UnsupportedEncodingException;
+import java.nio.charset.StandardCharsets;
 
 import org.springframework.amqp.core.Message;
 import org.springframework.amqp.core.MessageProperties;
 import org.springframework.beans.DirectFieldAccessor;
 import org.springframework.core.ConfigurableObjectInputStream;
-import org.springframework.core.NestedIOException;
 import org.springframework.core.serializer.DefaultDeserializer;
 import org.springframework.core.serializer.DefaultSerializer;
 import org.springframework.core.serializer.Deserializer;
 import org.springframework.core.serializer.Serializer;
+import org.springframework.lang.Nullable;
 
 /**
  * Implementation of {@link MessageConverter} that can work with Strings or native objects
@@ -47,10 +48,11 @@
  *
  * @author Dave Syer
  * @author Gary Russell
+ * @author Artem Bilan
  */
 public class SerializerMessageConverter extends AllowedListDeserializingMessageConverter {
 
-	public static final String DEFAULT_CHARSET = "UTF-8";
+	public static final String DEFAULT_CHARSET = StandardCharsets.UTF_8.name();
 
 	private volatile String defaultCharset = DEFAULT_CHARSET;
 
@@ -80,7 +82,7 @@ public void setIgnoreContentType(boolean ignoreContentType) {
 	 *
 	 * @param defaultCharset The default charset.
 	 */
-	public void setDefaultCharset(String defaultCharset) {
+	public void setDefaultCharset(@Nullable String defaultCharset) {
 		this.defaultCharset = (defaultCharset != null) ? defaultCharset : DEFAULT_CHARSET;
 	}
 
@@ -182,7 +184,7 @@ protected Class<?> resolveClass(ObjectStreamClass classDesc)
 			return objectInputStream.readObject();
 		}
 		catch (ClassNotFoundException ex) {
-			throw new NestedIOException("Failed to deserialize object type", ex);
+			throw new IOException("Failed to deserialize object type", ex);
 		}
 	}
 

spring-amqp/src/main/java/org/springframework/amqp/utils/SerializationUtils.java

@@ -26,7 +26,6 @@
 import java.util.Set;
 
 import org.springframework.core.ConfigurableObjectInputStream;
-import org.springframework.core.NestedIOException;
 import org.springframework.util.ObjectUtils;
 import org.springframework.util.PatternMatchUtils;
 
@@ -35,6 +34,7 @@
  *
  * @author Dave Syer
  * @author Gary Russell
+ * @author Artem Bilan
  */
 public final class SerializationUtils {
 
@@ -111,22 +111,22 @@ public static Object deserialize(InputStream inputStream, Set<String> allowedLis
 			throws IOException {
 
 		try (
-			ObjectInputStream objectInputStream = new ConfigurableObjectInputStream(inputStream, classLoader) {
+				ObjectInputStream objectInputStream = new ConfigurableObjectInputStream(inputStream, classLoader) {
 
-				@Override
-				protected Class<?> resolveClass(ObjectStreamClass classDesc)
-						throws IOException, ClassNotFoundException {
-					Class<?> clazz = super.resolveClass(classDesc);
-					checkAllowedList(clazz, allowedListPatterns);
-					return clazz;
-				}
+					@Override
+					protected Class<?> resolveClass(ObjectStreamClass classDesc)
+							throws IOException, ClassNotFoundException {
+						Class<?> clazz = super.resolveClass(classDesc);
+						checkAllowedList(clazz, allowedListPatterns);
+						return clazz;
+					}
 
-			}) {
+				}) {
 
 			return objectInputStream.readObject();
 		}
 		catch (ClassNotFoundException ex) {
-			throw new NestedIOException("Failed to deserialize object type", ex);
+			throw new IOException("Failed to deserialize object type", ex);
 		}
 	}
 

spring-amqp/src/test/java/org/springframework/amqp/support/converter/SerializerMessageConverterTests.java

@@ -23,33 +23,35 @@
 
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
+import java.io.IOException;
 import java.io.InputStream;
 import java.io.ObjectInputStream;
 import java.io.ObjectOutputStream;
+import java.nio.charset.StandardCharsets;
 
 import org.junit.jupiter.api.Test;
 import org.mockito.Mockito;
 
 import org.springframework.amqp.core.Message;
 import org.springframework.amqp.core.MessageProperties;
 import org.springframework.amqp.utils.test.TestUtils;
-import org.springframework.core.NestedIOException;
 import org.springframework.core.serializer.DefaultDeserializer;
 import org.springframework.core.serializer.Deserializer;
 
 /**
  * @author Mark Fisher
  * @author Gary Russell
+ * @author Artem Bilan
  */
 public class SerializerMessageConverterTests extends AllowedListDeserializingMessageConverterTests {
 
 	@Test
-	public void bytesAsDefaultMessageBodyType() throws Exception {
+	public void bytesAsDefaultMessageBodyType() {
 		SerializerMessageConverter converter = new SerializerMessageConverter();
 		Message message = new Message("test".getBytes(), new MessageProperties());
 		Object result = converter.fromMessage(message);
 		assertThat(result.getClass()).isEqualTo(byte[].class);
-		assertThat(new String((byte[]) result, "UTF-8")).isEqualTo("test");
+		assertThat(new String((byte[]) result, StandardCharsets.UTF_8)).isEqualTo("test");
 	}
 
 	@Test
@@ -65,7 +67,7 @@ public void messageToString() {
 	@Test
 	public void messageToBytes() {
 		SerializerMessageConverter converter = new SerializerMessageConverter();
-		Message message = new Message(new byte[] { 1, 2, 3 }, new MessageProperties());
+		Message message = new Message(new byte[]{ 1, 2, 3 }, new MessageProperties());
 		message.getMessageProperties().setContentType(MessageProperties.CONTENT_TYPE_BYTES);
 		Object result = converter.fromMessage(message);
 		assertThat(result.getClass()).isEqualTo(byte[].class);
@@ -126,7 +128,7 @@ public void stringToMessage() throws Exception {
 	@Test
 	public void bytesToMessage() throws Exception {
 		SerializerMessageConverter converter = new SerializerMessageConverter();
-		Message message = converter.toMessage(new byte[] { 1, 2, 3 }, new MessageProperties());
+		Message message = converter.toMessage(new byte[]{ 1, 2, 3 }, new MessageProperties());
 		String contentType = message.getMessageProperties().getContentType();
 		byte[] body = message.getBody();
 		assertThat(contentType).isEqualTo("application/octet-stream");
@@ -168,7 +170,7 @@ public void testDefaultDeserializerClassLoader() throws Exception {
 	}
 
 	@Test
-	public void messageConversionExceptionForClassNotFound() throws Exception {
+	public void messageConversionExceptionForClassNotFound() {
 		SerializerMessageConverter converter = new SerializerMessageConverter();
 		TestBean testBean = new TestBean("foo");
 		Message message = converter.toMessage(testBean, new MessageProperties());
@@ -177,8 +179,8 @@ public void messageConversionExceptionForClassNotFound() throws Exception {
 		byte[] body = message.getBody();
 		body[10] = 'z';
 		assertThatThrownBy(() -> converter.fromMessage(message))
-			.isExactlyInstanceOf(MessageConversionException.class)
-			.hasCauseExactlyInstanceOf(NestedIOException.class);
+				.isExactlyInstanceOf(MessageConversionException.class)
+				.hasCauseExactlyInstanceOf(IOException.class);
 	}
 
 }