Switch to CircleCI

.circleci/config.yml

+version: 2
+jobs:
+  build:
+    docker:
+      - image: circleci/openjdk:8-jdk
+    working_directory: ~/repo
+    environment:
+      JVM_OPTS: -Xmx3200m
+      TERM: dumb
+    steps:
+      - checkout
+      - restore_cache:
+          keys:
+            - v1-dependencies-{{ checksum "build.gradle" }}
+            - v1-dependencies-
+      - run: gradle dependencies
+      - save_cache:
+          paths:
+            - ~/.gradle
+          key: v1-dependencies-{{ checksum "build.gradle" }}
+      - run: gradle test
\ No newline at end of file

.travis.yml

-language: java
-install: true
-
-os: linux
-dist: trusty
-jdk: oraclejdk8
-
-cache:
-  directories:
-    - $HOME/.gradle/caches/
-    - $HOME/.gradle/wrapper/
-
-script:
-  - ./gradlew build
\ No newline at end of file

README.md

 # GraphQL Codegen #
 
-[![Build Status](https://travis-ci.com/kobylynskyi/graphql-java-codegen.svg?branch=master)](https://travis-ci.com/kobylynskyi/graphql-java-codegen)
+[![CircleCI](https://circleci.com/gh/kobylynskyi/graphql-java-codegen/tree/master.svg?style=svg)](https://circleci.com/gh/kobylynskyi/graphql-java-codegen/tree/master)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 
 ## Plugins
@@ -10,7 +10,6 @@ Please refer to:
 * Maven plugin: [grapqhl-java-codegen-maven-plugin](https://github.com/kobylynskyi/grapqhl-java-codegen-maven-plugin) 
 
 
-
 ## Supported Options
 
 | Key                     | Data Type          | Default value | Description |