Upgrade to Java 8

README.adoc

 
 == What you'll need
 
-:java_version: 1.7
+:java_version: 1.8
 include::https://raw.githubusercontent.com/spring-guides/getting-started-macros/master/prereq_editor_jdk_buildtools.adoc[]
 
 include::https://raw.githubusercontent.com/spring-guides/getting-started-macros/master/how_to_complete_this_guide.adoc[]

complete/build.gradle

     mavenCentral()
 }
 
-sourceCompatibility = 1.7
-targetCompatibility = 1.7
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
 
 dependencies {
     compile("org.springframework.boot:spring-boot-starter-web")

complete/pom.xml

     </dependencies>
 
     <properties>
-        <java.version>1.7</java.version>
+        <java.version>1.8</java.version>
     </properties>
 
     <build>

initial/build.gradle

     mavenCentral()
 }
 
-sourceCompatibility = 1.7
-targetCompatibility = 1.7
+sourceCompatibility = 1.8
+targetCompatibility = 1.8
 
 dependencies {
     // tag::jetty[]

initial/pom.xml

     </dependencies>
 
     <properties>
-        <java.version>1.7</java.version>
+        <java.version>1.8</java.version>
     </properties>