JdwpReplyPacket replyPacket = requestVM(
JdwpCommandPacket.VM_INSTANCE_COUNTS, outBytes);
switch (replyPacket.errorCode()) {
case JdwpReplyPacket.INVALID_CLASS:
case JdwpReplyPacket.INVALID_OBJECT:
throw new ObjectCollectedException(
JDIMessages.class_or_object_not_known);
case JdwpReplyPacket.ILLEGAL_ARGUMENT:
throw new IllegalArgumentException(
JDIMessages.VirtualMachineImpl_count_less_than_zero);
case JdwpReplyPacket.NOT_IMPLEMENTED: