Update version of graphql-java from 2.2.0 to 2.3.0 and fix tests

.gitignore

@@ -3,3 +3,4 @@ build
 *.iml
 *.ipr
 *.iws
+.idea/

build.gradle

@@ -30,6 +30,11 @@ repositories {
 }
 
 apply plugin: 'java'
+compileJava {
+    sourceCompatibility = '1.8'
+    targetCompatibility = '1.8'
+}
+
 apply plugin: 'osgi'
 apply plugin: 'license'
 apply plugin: 'java-library-distribution'
@@ -117,7 +122,7 @@ dependencies {
     compile 'commons-fileupload:commons-fileupload:1.3.1'
 
     // GraphQL
-    compile 'com.graphql-java:graphql-java:2.2.0'
+    compile 'com.graphql-java:graphql-java:2.3.0'
     compile 'com.graphql-java:graphql-java-annotations:0.13.1'
 
     // JSON
@@ -179,6 +184,11 @@ modifyPom {
                  name 'Yurii Rashkovskii'
                  email 'yrashk@gmail.com'
              }
+             developer {
+                 id 'apottere'
+                 name 'Andrew Potter'
+                 email 'apottere@gmail.com'
+             }
          }
      }
  }

src/test/java/graphql/servlet/GraphQLVariablesTest.java

@@ -41,11 +41,19 @@ public static class Data {
             private String field2;
         }
 
+        @Value
+        public static class DataInput {
+            @GraphQLField
+            private String field1;
+            @GraphQLField
+            private String field2;
+        }
+
         @GraphQLName("data")
         public static class DataQuery {
             @GraphQLField
-            public Data echo(Data data) {
-                return data;
+            public Data echo(DataInput data) {
+                return new Data(data.getField1(), data.getField2());
             }
         }