How to native debug Java on macOS?

[Alexander Miloslavskiy]

Sorry about very late reply.

Did quite a bit of experimenting, trying to get back that pesky 
'EXC_BAD_ACCESS' problem. Long story short, I will go straight to the 
interesting stuff, answering your questions is no longer needed.

When I use lldb to start my program like `lldb ~/Downloads/program` then 
'os::_polling_page' exceptions are seen as continuable 'SIGBUS'.

When I use lldb to attach to running process with `lldb -p` then 
'os::_polling_page' exceptions are seen as non-continuable 'EXC_BAD_ACCESS'.

At this moment, I lack the knowledge to explain this difference.

To verify that you're dealing with same 'os::_polling_page' exceptions 
in both cases:
1) 'SIGBUS' scenario:
    thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGBUS
      0x10647fb56: testl  %eax, (%r10)
    (lldb) print/x $r10
      0x00000001000fd008
    (lldb) print _ZN2os13_polling_pageE
      0x00000001000fd000
    These two are obviously related.
2) 'EXC_BAD_ACCESS' scenario:
    thread #1, queue = 'com.apple.main-thread', stop reason = 
EXC_BAD_ACCESS (code=2, address=0x105c4d008)
    (lldb) print _ZN2os13_polling_pageE
      0x0000000105c4d000
    Notice '0x105c4d008' vs '0x0000000105c4d000'.