update travis config to run full build + test with java 11 + 17

Author: hhughes

.travis.yml

@@ -7,14 +7,20 @@ matrix:
     # 8
     - env: JDK='OpenJDK 8'
       jdk: openjdk8
+      before_install:
+        # Require JDK8 for compiling
+        - jdk_switcher use openjdk8
+        - ./install-snapshots.sh
     # 11
     - env: JDK='OpenJDK 11'
-      # switch to JDK 11 before running tests
-      before_script: . $TRAVIS_BUILD_DIR/ci/install-jdk.sh -F 11 -L GPL
-before_install:
-  # Require JDK8 for compiling
-  - jdk_switcher use openjdk8
-  - ./install-snapshots.sh
+      before_install:
+        - . $TRAVIS_BUILD_DIR/ci/install-jdk.sh -F 11 -L GPL
+        - ./install-snapshots.sh
+    # 17
+    - env: JDK='OpenJDK 17'
+      before_install:
+        - . $TRAVIS_BUILD_DIR/ci/install-jdk.sh -F 17 -L GPL
+        - ./install-snapshots.sh
 install: mvn install -DskipTests=true -Dmaven.javadoc.skip=true -B -V
 script: mvn test -Djacoco.skip=true -Dmaven.test.failure.ignore=true -Dmaven.javadoc.skip=true -B -V
 cache:

ci/install-jdk.sh

@@ -200,6 +200,7 @@ function determine_url() {
        10-BCL) url="${ORACLE}/10.0.2+13/19aef61b38124481863b1413dce1855f/jdk-10.0.2_${os}_bin.tar.gz"; return;;
        11-GPL) url="${DOWNLOAD}/GA/jdk11/13/GPL/openjdk-11.0.1_${os}_bin.tar.gz"; return;;
        11-BCL) url="${ORACLE}/11.0.1+13/90cf5d8f270a4347a95050320eef3fb7/jdk-11.0.1_${os}_bin.tar.gz"; return;;
+       17-GPL) url="${DOWNLOAD}/GA/jdk17.0.2/dfd4a8d0985749f896bed50d7138ee7f/8/GPL/openjdk-17.0.2_${os}_bin.tar.gz"; return;;
     esac
 
     # EA or RC build?