The following test are failing in the JDK16 CI:

tools/jlink/JLinkTest.java
tools/jlink/JLinkNegativeTest.java

There appear to be sightings on all platforms.

Here's a snippet from a JLinkNegativeTest.java log file:

jlink options: --output /opt/mach5/mesos/work_dir/slaves/52628e90-e5e7-4ef3-af97-10d8776d10db-S2341/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/4aa2077e-ddde-4080-9899-0dd56b1831df/runs/08be1fa3-fcf6-40aa-89d6-161f029b94fe/testoutput/test-support/jtreg_open_test_jdk_tier2_part2/scratch/3/images/bug8134651-2.image --add-modules leaf1 --module-path :/opt/mach5/mesos/work_dir/slaves/52628e90-e5e7-4ef3-af97-10d8776d10db-S2341/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/4aa2077e-ddde-4080-9899-0dd56b1831df/runs/08be1fa3-fcf6-40aa-89d6-161f029b94fe/testoutput/test-support/jtreg_open_test_jdk_tier2_part2/scratch/3/jmods:/opt/mach5/mesos/work_dir/slaves/52628e90-e5e7-4ef3-af97-10d8776d10db-S2341/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/4aa2077e-ddde-4080-9899-0dd56b1831df/runs/08be1fa3-fcf6-40aa-89d6-161f029b94fe/testoutput/test-support/jtreg_open_test_jdk_tier2_part2/scratch/3/jars:/opt/mach5/mesos/work_dir/slaves/52628e90-e5e7-4ef3-af97-10d8776d10db-S2341/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/4aa2077e-ddde-4080-9899-0dd56b1831df/runs/08be1fa3-fcf6-40aa-89d6-161f029b94fe/testoutput/test-support/jtreg_open_test_jdk_tier2_part2/scratch/3/explodedmods/classes
jlink options: --output /opt/mach5/mesos/work_dir/slaves/52628e90-e5e7-4ef3-af97-10d8776d10db-S2341/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/4aa2077e-ddde-4080-9899-0dd56b1831df/runs/08be1fa3-fcf6-40aa-89d6-161f029b94fe/testoutput/test-support/jtreg_open_test_jdk_tier2_part2/scratch/3/images/bug8134651-3.image --add-modules leaf1
java.util.MissingResourceException: Can't find resource for bundle jdk.tools.jlink.resources.plugins, key err.prefix
at java.base/java.util.ResourceBundle.getObject(ResourceBundle.java:564)
at java.base/java.util.ResourceBundle.getString(ResourceBundle.java:521)
at jdk.jlink/jdk.tools.jlink.internal.TaskHelper$ResourceBundleHelper.getMessage(TaskHelper.java:497)
at jdk.jlink/jdk.tools.jlink.internal.TaskHelper.getMessage(TaskHelper.java:698)
at jdk.jlink/jdk.tools.jlink.internal.JlinkTask.run(JlinkTask.java:279)
at jdk.jlink/jdk.tools.jlink.internal.Main.run(Main.java:54)
at jdk.jlink/jdk.tools.jlink.internal.Main$JlinkToolProvider.run(Main.java:65)
at tests.JImageGenerator$JLinkTask.call(JImageGenerator.java:715)
at JLinkTest.main(JLinkTest.java:172)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:127)
at java.base/java.lang.Thread.run(Thread.java:832)

JavaTest Message: Test threw exception: java.util.MissingResourceException: Can't find resource for bundle jdk.tools.jlink.resources.plugins, key err.prefix
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.util.MissingResourceException: Can't find resource for bundle jdk.tools.jlink.resources.plugins, key err.prefix
----------rerun:(44/7142)*----------