Reported here:
http://mail.openjdk.java.net/pipermail/compiler-dev/2018-November/012638.html

Source code:
---

public class Java12Test {
  public static void main(String[] args) {
    System.out.println(switch(0) {
      default -> {
        try { throw new Exception(); }
        catch(Exception ex) {
          break 1;
        }
      }
    });
  }
}
---

When run, this crashes:
---
Error: Unable to initialize main class Java12Test
Caused by: java.lang.VerifyError: Stack map does not match the one at
exception handler 24
Exception Details:
  Location:
    Java12Test.main([Ljava/lang/String;)V @16: new
  Reason:
    Current frame's stack size doesn't match stackmap.
  Current Frame:
    bci: @16
    flags: { }
    locals: { '[Ljava/lang/String;' }
    stack: { 'java/lang/Exception' }
  Stackmap Frame:
    bci: @24
    flags: { }
    locals: { '[Ljava/lang/String;' }
    stack: { 'java/io/PrintStream', 'java/lang/Exception' }
  Bytecode:
    0000000: b200 0203 ab00 0000 0000 000c 0000 0000
    0000010: bb00 0359 b700 04bf 4d04 3ca7 0003 1bb6
    0000020: 0005 b1
  Exception Handler Table:
    bci [16, 24] => handler: 24
  Stackmap Table:
    same_locals_1_stack_item_frame(@16,Object[#15])
    full_frame(@24,{Object[#16]},{Object[#15],Object[#3]})
    full_frame(@30,{Object[#16],Integer},{Object[#15]})
---