Upgrade to Netty 4.1.32, Undertow 2.0.16, OpenPDF 1.2.7

Includes Hibernate ORM 5.1.17 for integration tests.

build.gradle

@@ -37,7 +37,7 @@ ext {
 	junit5Version        = "5.3.2"
 	kotlinVersion        = "1.2.71"
 	log4jVersion         = "2.11.1"
-	nettyVersion         = "4.1.31.Final"
+	nettyVersion         = "4.1.32.Final"
 	reactorVersion       = "Californium-SR3"
 	rxjavaVersion        = "1.3.8"
 	rxjavaAdapterVersion = "1.2.1"
@@ -45,7 +45,7 @@ ext {
 	slf4jVersion         = "1.7.25"	  // spring-jcl + consistent 3rd party deps
 	tiles3Version        = "3.0.8"
 	tomcatVersion        = "9.0.13"
-	undertowVersion      = "2.0.15.Final"
+	undertowVersion      = "2.0.16.Final"
 
 	gradleScriptDir = "${rootProject.projectDir}/gradle"
 	withoutJclOverSlf4J = {
@@ -276,7 +276,7 @@ configure(rootProject) {
 		testCompile("javax.servlet:javax.servlet-api:3.1.0")
 		testCompile("org.aspectj:aspectjweaver:${aspectjVersion}")
 		testCompile("org.hsqldb:hsqldb:${hsqldbVersion}")
-		testCompile("org.hibernate:hibernate-core:5.1.16.Final")
+		testCompile("org.hibernate:hibernate-core:5.1.17.Final")
 	}
 
 	artifacts {

spring-webmvc/spring-webmvc.gradle

@@ -23,7 +23,7 @@ dependencies {
 	optional("javax.xml.bind:jaxb-api:2.3.1")
 	optional("org.webjars:webjars-locator-core:0.35")
 	optional("com.rometools:rome:1.11.1")
-	optional("com.github.librepdf:openpdf:1.2.5")
+	optional("com.github.librepdf:openpdf:1.2.7")
 	optional("org.apache.poi:poi-ooxml:4.0.0")
 	optional("org.freemarker:freemarker:${freemarkerVersion}")
 	optional("com.fasterxml.jackson.core:jackson-databind:${jackson2Version}")