Test java/lang/System/SecurityManagerWarnings.java fails with --enable-preview enabled.
The problem is that this test
makes jar from SecurityManagerWarnings.java classes. Then it executes it with
java -cp a.jar SecurityManagerWarnings run
and expects to have
java.lang.UnsupportedOperationException: Setting a Security Manager is not supported
        at java.base/java.lang.System.setSecurityManager(System.java:286)
        at A.run(SecurityManagerWarnings.java:113)
        at SecurityManagerWarnings.main(SecurityManagerWarnings.java:66)

However, running with --enable preview generates other error
java --enable-preview -cp a.jar SecurityManagerWarnings run
Error: Unable to initialize main class SecurityManagerWarnings
Caused by: java.lang.NoClassDefFoundError: jdk/test/lib/process/OutputAnalyzer

The problem is that SecurityManagerWarnings class depends on the OutputAnalyzer.

The class is not used in the executed path and VM don't try to resolve i. But VM with --enable-preview tries to verify the main() method and resolve all dependencies.

Not sure what spec says, but from my point of view test seems wrong. It is not a good to try to run classes with unresolved dependencies.