jdk14 x86-64_linux_openliberty-mp-tck build failure

[lumpfish]

The openliberty-mp-tck if failing to build on jdk14 x86-64_linux. Looks like there must be a pre-jdk14 jdk somewhere in the build process trying to run a class compiled with jdk14 (major version 58).

Failing job link: https://ci.adoptopenjdk.net/job/Test_openjdk14_j9_sanity.external_x86-64_linux_openliberty-mp-tck/117/console

Job output text at point of failure:

17:49:38  	/home/jenkins/workspace/Test_openjdk14_j9_sanity.external_x86-64_linux_openliberty-mp-tck/openjdk-tests/TKG/../external/external.sh --clean --tag nightly --version 14 --impl openj9 --dir openliberty-mp-tck; } 2>&1 | tee -a "/home/jenkins/workspace/Test_openjdk14_j9_sanity.external_x86-64_linux_openliberty-mp-tck/openjdk-tests/TKG/../TKG/test_output_15934493627403/TestTargetResult";
17:49:38  docker run --rm -v /home/jenkins/workspace/Test_openjdk14_j9_sanity.external_x86-64_linux_openliberty-mp-tck/openjdkbinary/j2sdk-image:/opt/java/openjdk --name openliberty-mp-tck-test adoptopenjdk-openliberty-mp-tck-test:14-jdk-ubuntu-openj9-full 
17:49:39  Using docker image default Java
17:49:39  JAVA_BIN is: /opt/java/openjdk/bin
17:49:39  openjdk version "14.0.1" 2020-04-14
17:49:39  OpenJDK Runtime Environment AdoptOpenJDK (build 14.0.1+7)
17:49:39  Eclipse OpenJ9 VM AdoptOpenJDK (build openj9-0.21.0-m2, JRE 14 Linux amd64-64-Bit Compressed References 20200629_132 (JIT enabled, AOT enabled)
17:49:39  OpenJ9   - bb8127767
17:49:39  OMR      - 113e54219
17:49:39  JCL      - abc1b194da based on jdk-14.0.1+7)
17:49:50  
17:49:50  FAILURE: Build failed with an exception.
17:49:50  
17:49:50  * What went wrong:
17:49:50  Could not open cp_settings remapped class cache for 9s4jg7zt30pubsmu21xdzgevf (/root/.gradle/caches/6.0.1/scripts-remapped/settings_bimm3z0dwshuq5c7p2wfrtf2s/9s4jg7zt30pubsmu21xdzgevf/cp_settings27b7120d8bed45e60dd0b95b8e5ecea0).
17:49:50  > Could not open cp_settings generic class cache for settings file '/open-liberty/dev/settings.gradle' (/root/.gradle/caches/6.0.1/scripts/9s4jg7zt30pubsmu21xdzgevf/cp_settings/cp_settings27b7120d8bed45e60dd0b95b8e5ecea0).
17:49:50     > BUG! exception in phase 'semantic analysis' in source unit '_BuildScript_' Unsupported class file major version 58
17:49:50  
17:49:50  * Try:
17:49:50  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
17:49:50  
17:49:50  * Get more help at https://help.gradle.org
17:49:50  
17:49:50  BUILD FAILED in 10s
17:49:51  
17:49:51  openliberty_microprofile_tck_0_FAILED

[smlambert]

Version of openliberty used: gm-20.0.0.4 in our tests (see common_functions.sh)

Related: #1677 (which I will close in favour of this issue)

[smlambert]

We should disable this test target until this setup issue is addressed (open liberty test is failing on all impls/versions with various setup issues).

[smlambert]

Closing as stale (fresh issues will be created as part of #3187).