code: public int getHitCount(IDbgpSession session) throws CoreException
  	{
  		final PerSessionInfo info;
  		synchronized (sessions)
  		{
  			info = (PerSessionInfo) sessions.get(session);
  		}
  		return info != null ? info.hitCount : -1;
  	}
docs: /*
  @see IScriptBreakpoint#getHitCount(IDbgpSession)