sun/tools/jstatd/TestJstatdServer.java and sun/tools/jstatd/TestJstatdDefaults.java failed with:

[Jstatd-Thread] Could not bind /TestJstatdServer to RMI Registry
[Jstatd-Thread] java.rmi.server.ExportException: Port already in use: 1099; nested exception is:
[Jstatd-Thread] java.net.BindException: Address already in use: bind
[Jstatd-Thread] at java.rmi/sun.rmi.transport.tcp.TCPTransport.listen(TCPTransport.java:335)
[Jstatd-Thread] at java.rmi/sun.rmi.transport.tcp.TCPTransport.exportObject(TCPTransport.java:243)
[Jstatd-Thread] at java.rmi/sun.rmi.transport.tcp.TCPEndpoint.exportObject(TCPEndpoint.java:411)
[Jstatd-Thread] at java.rmi/sun.rmi.transport.LiveRef.exportObject(LiveRef.java:147)
[Jstatd-Thread] at java.rmi/sun.rmi.server.UnicastServerRef.exportObject(UnicastServerRef.java:234)
[Jstatd-Thread] at java.rmi/sun.rmi.registry.RegistryImpl.setup(RegistryImpl.java:220)
[Jstatd-Thread] at java.rmi/sun.rmi.registry.RegistryImpl$2.run(RegistryImpl.java:196)
[Jstatd-Thread] at java.rmi/sun.rmi.registry.RegistryImpl$2.run(RegistryImpl.java:193)
[Jstatd-Thread] at java.base/java.security.AccessController.doPrivileged(AccessController.java:690)
[Jstatd-Thread] at java.base/java.security.AccessController.doPrivileged(AccessController.java:863)
[Jstatd-Thread] at java.rmi/sun.rmi.registry.RegistryImpl.<init>(RegistryImpl.java:193)
[Jstatd-Thread] at java.rmi/java.rmi.registry.LocateRegistry.createRegistry(LocateRegistry.java:203)
[Jstatd-Thread] at jdk.jstatd/sun.tools.jstatd.Jstatd.bind(Jstatd.java:67)