Add JDK 17 target (#9802)

* add JDK 17 target

tests.sh

@@ -190,6 +190,10 @@ build_golang() {
 use_java() {
   version=$1
   case "$version" in
+    jdk17)
+      export PATH=/usr/lib/jvm/java-17-openjdk-amd64/bin:$PATH
+      export JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64
+      ;;
     jdk11)
       export PATH=/usr/lib/jvm/java-11-openjdk-amd64/bin:$PATH
       export JAVA_HOME=/usr/lib/jvm/java-11-openjdk-amd64
@@ -276,6 +280,11 @@ build_java_jdk8() {
   build_java_with_conformance_tests
 }
 
+build_java_jdk17() {
+  use_java jdk17
+  build_java_with_conformance_tests
+}
+
 build_java_linkage_monitor() {
   # Linkage Monitor checks compatibility with other Google libraries
   # https://github.com/GoogleCloudPlatform/cloud-opensource-java/tree/master/linkage-monitor
@@ -586,6 +595,7 @@ Usage: $0 { cpp |
             java_jdk7 |
             java_oracle7 |
             java_jdk8 |
+            java_jdk17 |
             java_linkage_monitor |
             objectivec_ios |
             objectivec_ios_debug |