Raise the minimum support version of Java to 8

Closes gh-388

build.gradle

@@ -56,8 +56,8 @@ subprojects {
 	apply plugin: 'propdeps-maven'
 	apply plugin: 'maven'
 
-	sourceCompatibility = 1.7
-	targetCompatibility = 1.7
+	sourceCompatibility = 1.8
+	targetCompatibility = 1.8
 
 	dependencyManagement {
 		imports {

docs/src/docs/asciidoc/getting-started.adoc

@@ -67,7 +67,7 @@ If you want to jump straight in, a number of sample applications are available:
 
 Spring REST Docs has the following minimum requirements:
 
-- Java 7
+- Java 8
 - Spring Framework 4.3
 
 Additionally, the `spring-restdocs-restassured` module has the following minimum

gradle.properties

@@ -1,3 +1,2 @@
-org.gradle.jvmargs=-XX:MaxPermSize=512M
 version=2.0.0.BUILD-SNAPSHOT
 org.gradle.daemon=false

samples/rest-assured/build.gradle

@@ -23,8 +23,8 @@ repositories {
 
 group = 'com.example'
 
-sourceCompatibility = 1.7
-targetCompatibility = 1.7
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
 
 ext {
 	snippetsDir = file('build/generated-snippets')

samples/rest-notes-slate/build.gradle

@@ -19,8 +19,8 @@ repositories {
 
 group = 'com.example'
 
-sourceCompatibility = 1.7
-targetCompatibility = 1.7
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
 
 ext {
 	snippetsDir = file('build/generated-snippets')

samples/rest-notes-spring-data-rest/pom.xml

@@ -17,7 +17,7 @@
 
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-		<java.version>1.7</java.version>
+		<java.version>1.8</java.version>
 		<spring-restdocs.version>2.0.0.BUILD-SNAPSHOT</spring-restdocs.version>
 	</properties>
 

samples/rest-notes-spring-hateoas/build.gradle

@@ -23,8 +23,8 @@ repositories {
 
 group = 'com.example'
 
-sourceCompatibility = 1.7
-targetCompatibility = 1.7
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
 
 ext {
 	snippetsDir = file('build/generated-snippets')

samples/testng/build.gradle

@@ -23,8 +23,8 @@ repositories {
 
 group = 'com.example'
 
-sourceCompatibility = 1.7
-targetCompatibility = 1.7
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
 
 ext {
 	snippetsDir = file('build/generated-snippets')