Upgrade to Jackson 2.8 RC1, Undertow 1.4 CR1, Netty 4.1.1

Issue: SPR-14340
Issue: SPR-14328
Issue: SPR-14143

build.gradle

@@ -52,7 +52,7 @@ configure(allprojects) { project ->
 	ext.hsqldbVersion        = "2.3.4"
 	ext.httpasyncVersion     = "4.1.1"
 	ext.httpclientVersion    = "4.5.2"
-	ext.jackson2Version      = "2.7.4"
+	ext.jackson2Version      = "2.8.0.rc1"
 	ext.jasperreportsVersion = "6.2.1"
 	ext.javamailVersion      = "1.5.5"
 	ext.jettyVersion         = "9.3.9.v20160517"
@@ -60,7 +60,7 @@ configure(allprojects) { project ->
 	ext.jrubyVersion         = "1.7.25"  // JRuby 9000 only supported through JSR-223 (StandardScriptFactory)
 	ext.jtaVersion           = "1.2"
 	ext.junitVersion         = "4.12"
-	ext.nettyVersion         = "4.1.0.Final"
+	ext.nettyVersion         = "4.1.1.Final"
 	ext.okhttpVersion        = "2.7.5"
 	ext.okhttp3Version       = "3.3.1"
 	ext.openjpaVersion       = "2.4.1"
@@ -75,7 +75,7 @@ configure(allprojects) { project ->
 	ext.tiles3Version        = "3.0.5"
 	ext.tomcatVersion        = "8.5.2"
 	ext.tyrusVersion         = "1.3.5"  // constrained by WebLogic 12.1.3 support
-	ext.undertowVersion      = "1.4.0.Beta1"
+	ext.undertowVersion      = "1.4.0.CR1"
 	ext.xmlunitVersion       = "1.6"
 	ext.xstreamVersion       = "1.4.9"
 

spring-web/src/test/java/org/springframework/http/converter/json/Jackson2ObjectMapperBuilderTests.java

@@ -64,7 +64,6 @@ import com.fasterxml.jackson.databind.ser.std.ClassSerializer;
 import com.fasterxml.jackson.databind.ser.std.NumberSerializer;
 import com.fasterxml.jackson.databind.type.SimpleType;
 import com.fasterxml.jackson.dataformat.xml.XmlMapper;
-
 import kotlin.ranges.IntRange;
 import org.joda.time.DateTime;
 import org.joda.time.DateTimeZone;
@@ -253,7 +252,7 @@ public class Jackson2ObjectMapperBuilderTests {
 		assertEquals(timestamp.toString(), new String(objectMapper.writeValueAsBytes(dateTime), "UTF-8"));
 
 		Path file = Paths.get("foo");
-		assertEquals("\"foo\"", new String(objectMapper.writeValueAsBytes(file), "UTF-8"));
+		assertTrue(new String(objectMapper.writeValueAsBytes(file), "UTF-8").endsWith("foo\""));
 
 		Optional<String> optional = Optional.of("test");
 		assertEquals("\"test\"", new String(objectMapper.writeValueAsBytes(optional), "UTF-8"));
@@ -263,7 +262,7 @@ public class Jackson2ObjectMapperBuilderTests {
 		assertEquals("{\"start\":1,\"end\":3}", new String(objectMapper.writeValueAsBytes(range), "UTF-8"));
 	}
 
-	@Test // SPR-12634
+	@Test  // SPR-12634
 	public void customizeWellKnownModulesWithModule() throws JsonProcessingException, UnsupportedEncodingException {
 		ObjectMapper objectMapper = Jackson2ObjectMapperBuilder.json()
 				.modulesToInstall(new CustomIntegerModule()).build();
@@ -272,7 +271,7 @@ public class Jackson2ObjectMapperBuilderTests {
 		assertThat(new String(objectMapper.writeValueAsBytes(new Integer(4)), "UTF-8"), containsString("customid"));
 	}
 
-	@Test // SPR-12634
+	@Test  // SPR-12634
 	@SuppressWarnings("unchecked")
 	public void customizeWellKnownModulesWithModuleClass() throws JsonProcessingException, UnsupportedEncodingException {
 		ObjectMapper objectMapper = Jackson2ObjectMapperBuilder.json().modulesToInstall(CustomIntegerModule.class).build();
@@ -281,7 +280,7 @@ public class Jackson2ObjectMapperBuilderTests {
 		assertThat(new String(objectMapper.writeValueAsBytes(new Integer(4)), "UTF-8"), containsString("customid"));
 	}
 
-	@Test // SPR-12634
+	@Test  // SPR-12634
 	public void customizeWellKnownModulesWithSerializer() throws JsonProcessingException, UnsupportedEncodingException {
 		ObjectMapper objectMapper = Jackson2ObjectMapperBuilder.json()
 				.serializerByType(Integer.class, new CustomIntegerSerializer()).build();
@@ -520,6 +519,7 @@ public class Jackson2ObjectMapperBuilderTests {
 		}
 	}
 
+
 	public static class ListContainer<T> {
 
 		private List<T> list;

spring-web/src/test/java/org/springframework/http/converter/json/SpringHandlerInstantiatorTests.java

@@ -47,7 +47,6 @@ import com.fasterxml.jackson.databind.jsontype.TypeIdResolver;
 import com.fasterxml.jackson.databind.jsontype.TypeSerializer;
 import com.fasterxml.jackson.databind.jsontype.impl.StdTypeResolverBuilder;
 import com.fasterxml.jackson.databind.type.TypeFactory;
-
 import org.junit.Before;
 import org.junit.Test;
 
@@ -197,7 +196,7 @@ public class SpringHandlerInstantiatorTests {
 			return JsonTypeInfo.Id.CUSTOM;
 		}
 
-		@Override
+		// Only needed when compiling against Jackson 2.7; gone in 2.8
 		@SuppressWarnings("deprecation")
 		public JavaType typeFromId(String s) {
 			return TypeFactory.defaultInstance().constructFromCanonical(s);