The two Clhsdb tests "ClhsdbField.java" and "ClhsdbVmStructsDump.java" are using the "field JVMState _bci" for testing. This field is C2 specific. Both tests are failing if C2 is not available:

java.lang.RuntimeException: Test ERROR java.lang.RuntimeException: 'field JVMState _bci' missing from stdout/stderr

at ClhsdbField.main(ClhsdbField.java:69)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:127)
at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: java.lang.RuntimeException: 'field JVMState _bci' missing from stdout/stderr

at jdk.test.lib.process.OutputAnalyzer.shouldMatch(OutputAnalyzer.java:340)
at ClhsdbLauncher.runCmd(ClhsdbLauncher.java:166)
at ClhsdbLauncher.run(ClhsdbLauncher.java:203)
at ClhsdbField.main(ClhsdbField.java:65)
... 6 more