modified circleio config.yml (#44)

modified circleci/config.yml to run on: jdk8, jdk11 and jdk17

.circleci/config.yml

@@ -1,46 +1,38 @@
-# Java Gradle CircleCI 2.0 configuration file
-# See: https://circleci.com/docs/2.0/language-java/
-version: 2
-
-# Define a job to be invoked later in a workflow.
-# See: https://circleci.com/docs/2.0/configuration-reference/#jobs
+version: 2.1
+shared: &shared
+  working_directory: ~/repo
+  environment:
+    JVM_OPTS: -Xmx1g
+  steps:
+      - checkout
+      - run: ./gradlew clean build
+      - store_test_results:
+          path: build/test-results
+      - store_artifacts:
+          path: build/reports/tests/test
+          destination: test_result
+      - store_artifacts:
+          path: build/reports/jacoco
+          destination: test_coverage
+
 jobs:
-  build:
-    # Specify the execution environment. You can specify an image from Dockerhub or use one of our Convenience Images from CircleCI's Developer Hub.
-    # See: https://circleci.com/docs/2.0/configuration-reference/#docker-machine-macos-windows-executor
+  jdk8:
     docker:
-      # specify the version you desire here
-      - image: circleci/openjdk:8-jdk
-
-      # Specify service dependencies here if necessary
-      # CircleCI maintains a library of pre-built images
-      # documented at https://circleci.com/docs/2.0/circleci-images/
-      # - image: circleci/postgres:9.4
-
-    working_directory: ~/repo
-
-    environment:
-      # Customize the JVM maximum heap limit
-      JVM_OPTS: -Xmx3200m
-      TERM: dumb
-    # Add steps to the job
-    # See: https://circleci.com/docs/2.0/configuration-reference/#steps
-    steps:
-      - checkout
-
-      # Download and cache dependencies
-      - restore_cache:
-          keys:
-            - v1-dependencies-{{ checksum "build.gradle" }}
-            # fallback to using the latest cache if no exact match is found
-            - v1-dependencies-
-
-      - run: gradle dependencies
-
-      - save_cache:
-          paths:
-            - ~/.gradle
-          key: v1-dependencies-{{ checksum "build.gradle" }}
-
-      # run tests!
-      - run: gradle test
+      - image: cimg/openjdk:8.0
+    <<: *shared
+  jdk11:
+    docker:
+      - image: cimg/openjdk:11.0
+    <<: *shared
+  jdk17:
+    docker:
+      - image: cimg/openjdk:17.0
+    <<: *shared
+
+workflows:
+  version: 2.1
+  work:
+    jobs:
+      - jdk8
+      - jdk11
+      - jdk17