Several bugs describe the behavior of stopping twice at a breakpoint:

4278333 & 4331369 & 4326260 & 4294585 & 4303298

This may just be another dup but I am submitting it because it has
the additional property of crashing the VM.

Test program:

---- cut here ---
public class BPTest {
  public static void main(String[] args) {
    for(int i=0; i < 100; i++){
      System.out.println("i = " + i);
      BPTest Instance = new BPTest(); // add breakpoint here !!
    }
  }
}
---- cut here ---

The run (on Merlin/Solaris):

% jdb BPTest
Initializing jdb...
> stop at BPTest:5
Deferring breakpoint BPTest:5.
It will be set after the class is loaded.
> run
run BPTest
Java HotSpot(TM) Client VM warning: Setting of property "java.compiler" is ignored
>
VM Started: Set deferred breakpoint BPTest:5
i = 0

Breakpoint hit: thread="main", BPTest.main(), line=5, bci=30
  5 ErrorTest Instance = new ErrorTest(); // add breakpoint here !!

main[1] resume
All threads resumed.
>
Breakpoint hit: thread="main", BPTest.main(), line=5, bci=30
  5 ErrorTest Instance = new ErrorTest(); // add breakpoint here !!

main[1] resume
All threads resumed.
> #
# HotSpot Virtual Machine Error, Unexpected Signal 11
#
# Error ID: 4F533F534F4C415249530E43505007CA 01
#

The application has been disconnected
%