java - Why this errors appear in my console? -


i noticed rare error messages on browser console, don't know reason. use primefaces gadgets in app, works fine, when navigate 1 page keep see in console: enter image description here

i don't know wrong. want mention pages use 1 same template, has navigation gadget see in image above. in template @ head tag added scripts:

<script type="text/javascript"             src="/primefaces_resource/2.1/yui/utilities/utilities.js"></script>         <script type="text/javascript"             src="/primefaces_resource/2.1/yui/datasource/datasource-min.js"></script>         <script type="text/javascript"             src="/primefaces_resource/2.1/primefaces/paginator/paginator.js"></script>         <script type="text/javascript"             src="/primefaces_resource/2.1/yui/datatable/datatable-min.js"></script>         <script type="text/javascript"             src="/primefaces_resource/2.1/primefaces/datatable/datatable.js"></script>         <script type="text/javascript"             src="/primefaces_resource/2.1/yui/swf/swf-min.js"></script>         <script type="text/javascript"             src="/primefaces_resource/2.1/yui/charts/charts-min.js"></script>         <script type="text/javascript"             src="/primefaces_resource/2.1/primefaces/charts/charts.js"></script>         <script type="text/javascript"             src="/primefaces_resource/2.1/jquery/jquery.js"></script>         <script type="text/javascript"             src="/primefaces_resource/2.1/primefaces/core/core.js"></script>             <script src="http://maps.google.com/maps/api/js?sensor=false"         type="text/javascript" ></script> 

this jars added classpath able use primefaces: enter image description here

i dont understand why see messages time in console?

if use h:head tag in page should not need include these separate script tags. primefaces should figure out components used in page , output needed scripts itself.

the 404 error caused wrong absolute path. unless application explicitly deployd @ webserver root, need prepend context root path of your. can access context path using el this:

<script type="text/javascript"         src="#{request.contextpath}/primefaces_resource/2.1/yui/utilities/utilities.js"></script> 

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