Update CI test

Signed-off-by: Ryan Nett <JNett96@gmail.com>

Author: rnett

.github/workflows/ci.yml

@@ -40,29 +40,25 @@ jobs:
       - name: Run lint checks
         run: |
           mvn compiler:compile -Pdev,jdk11 -B -U -e
-  quick-build-jdk8:
+  quick-build-jdk9:
     if: github.event_name == 'pull_request' && !contains(github.event.pull_request.labels.*.name, 'CI build')
     runs-on: ubuntu-latest
     container: centos:7
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v1      
+        uses: actions/checkout@v1
       - name: Setup Java
         uses: actions/setup-java@v1
         with:
-          java-version: 8 
+          java-version: 9
       - name: Install environment
         run: |
-          yum -y update
-          yum -y install centos-release-scl-rh epel-release
-          yum -y install devtoolset-7
           echo Downloading Maven
           curl -L https://archive.apache.org/dist/maven/maven-3/3.6.3/binaries/apache-maven-3.6.3-bin.tar.gz -o $HOME/apache-maven-3.6.3-bin.tar.gz
           tar xzf $HOME/apache-maven-3.6.3-bin.tar.gz -C /opt/
           ln -sf /opt/apache-maven-3.6.3/bin/mvn /usr/bin/mvn
       - name: Build project
         run: |
-          source scl_source enable devtoolset-7 || true
           export JAVA_HOME=$(dirname $(dirname $(readlink $(readlink $(which javac)))))
           echo $JAVA_HOME
           mvn -version