impl/src/main/java/org/apache/myfaces/application/viewstate/KeyFactorySecureRandom.java [67:87]:
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    public Integer generateCounterKey(FacesContext facesContext)
    {
        ExternalContext externalContext = facesContext.getExternalContext();
        Object sessionObj = externalContext.getSession(true);
        Integer sequence;
        synchronized (sessionObj) // are handled at the same time for the session
        {
            Map<String, Object> map = externalContext.getSessionMap();
            sequence = (Integer) map.get(RendererUtils.SEQUENCE_PARAM);
            if (sequence == null || sequence == Integer.MAX_VALUE)
            {
                sequence = 1;
            }
            else
            {
                sequence = sequence + 1;
            }
            map.put(RendererUtils.SEQUENCE_PARAM, sequence);
        }
        return sequence;
    }
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impl/src/main/java/org/apache/myfaces/application/viewstate/KeyFactoryRandom.java [41:61]:
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    public Integer generateCounterKey(FacesContext facesContext)
    {
        ExternalContext externalContext = facesContext.getExternalContext();
        Object sessionObj = externalContext.getSession(true);
        Integer sequence;
        synchronized (sessionObj) // are handled at the same time for the session
        {
            Map<String, Object> map = externalContext.getSessionMap();
            sequence = (Integer) map.get(RendererUtils.SEQUENCE_PARAM);
            if (sequence == null || sequence == Integer.MAX_VALUE)
            {
                sequence = 1;
            }
            else
            {
                sequence = sequence + 1;
            }
            map.put(RendererUtils.SEQUENCE_PARAM, sequence);
        }
        return sequence;
    }
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