Find a strange problem about using project-panama on macos

[刘希晨]

I have found a really strange problem when using project-panama on macos,
and it might be a bug.

*Environment*: JDK-21 ea build 34, cpu : M1 Pro, operating system : Ventura
13.5

Here are the minimal reproducible codes:

public class SimpleExample {
    public static void main(String[] args) throws Throwable {
        SymbolLookup crypto =
SymbolLookup.libraryLookup("/Users/liuxichen/workspace/tenet-lib/lib/libcrypto.dylib",
Arena.global());
        Thread.sleep(Long.MAX_VALUE);
    }
}

The libcrypto.dylib file is the OPENSSL dynamic library file, I think other
libraries probably could cause the same problem.

*Problem description*:
A normal java program would work fine with *jconsole* and *jmap*, if
running the above code in macos, jconsole won't be able to connect to the
target process, and jmap will give the following error:

 *~/Dow/jdk-21/C/H/bin  jps*

1665 RemoteMavenServer36
2673 Jps
532
1671 Launcher
1672 SimpleExample
1211


* ~/Dow/jdk-21/C/H/bin  ./jmap -histo:live,file=histo5.data 1672*

Exception in thread "main"
com.sun.tools.attach.AttachNotSupportedException: Unable to open
socket file /var/folders/k4/j5wzcbnd3m96s5lmqw_8lh8r0000gn/T/.java_pid1672:
target process 1672 doesn't respond within 10500ms or HotSpot VM not
loaded
    at jdk.attach/sun.tools.attach.VirtualMachineImpl.<init>(VirtualMachineImpl.java:95)
    at jdk.attach/sun.tools.attach.AttachProviderImpl.attachVirtualMachine(AttachProviderImpl.java:58)
    at jdk.attach/com.sun.tools.attach.VirtualMachine.attach(VirtualMachine.java:207)
    at jdk.jcmd/sun.tools.jmap.JMap.executeCommandForPid(JMap.java:127)
    at jdk.jcmd/sun.tools.jmap.JMap.histo(JMap.java:199)
    at jdk.jcmd/sun.tools.jmap.JMap.main(JMap.java:112)


Several tests:
1. The above code runs fine on windows and macos, and the process could be
accessed by jconsole and jmap on windows, only fail on macos
2. The problem could be solved by adding VM options, for jconsole usable,
add -Dcom.sun.management.jmxremote for jmap usable add
-XX:+StartAttachListener , if there is no *SymbolLookup.libraryLookup*(),
then jconsole and jmap would work well without these two arguments

So, I guess there must be some internal logic that blocks the jconsole and
jmap from entering java program inside *SymbolLookup.libraryLookup*(),
please correct me if I am wrong
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