javascript - How to identify XPages errors at the console -

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i have xpages application has been running in production few years , has been built on continually add new functionality. in last few months have noticed errors these below on server console. console advises check error-log-0.xml file, reported there doesn't lead me useful conclusions causing problem. 

2014-11-27t07:27:12.156+00:00 severe clfad0131e: unable push data because: unable open database: com.ibm.xsp.binding.javascript.javascriptvaluebinding@539c539c 2014-11-27t07:27:12.156+00:00 severe clfad0134e: exception processing xpage request  2014-11-27t07:27:12.359+00:00 severe clfad0131e: unable push data because: error while executing javascript computed expression 2014-11-27t07:27:12.359+00:00 severe com.ibm.xsp.exception.evaluationexceptionex: error while executing javascript computed expression com.sun.faces.lifecycle.applyrequestvaluesphase  2014-11-27t07:27:12.375+00:00 severe clfad0134e: exception processing xpage request  2014-11-27t07:27:16.468+00:00 severe clfad0131e: unable push data because: unable open database: com.ibm.xsp.binding.javascript.javascriptvaluebinding@539c539c  2014-11-27t07:27:16.468+00:00 severe unable open database: com.ibm.xsp.binding.javascript.javascriptvaluebinding@539c539c com.sun.faces.lifecycle.applyrequestvaluesphase  2014-11-27t07:27:16.468+00:00 severe clfad0134e: exception processing xpage request

the application in question has number of additional databases linked it, instance we're using flash upload control multiple file uploads , stored in separate db. therefore filedownload control listing attachments in number of documents in different database main document. similarly, there database storing multiple "reference" documents associated main document, on page have repeat control listing values on these reference documents in nice table, data coming different db.

the first thing did make sure acl same on databases linked main app, thereby ruling out access issue. application on server uses active directory authenticate users (via kerberos value on person docs in nab) rather username , password.

so question is, how identify causing these errors? valuebiniding failing somewhere don't how translate javascriptvaluebinding@539c539c in actual control on page. application complex these days lot of code in , links databases on code. can't reproduce problem , don't know effect has on user's session when server logs it, identifying control triggers error @ least allow me add better error handling. use try catch everywhere in system surprised happens @ all.

any ideas how identify offending code block ?

if have custom error page, xpages openlog logger on openntf catch uncaught exceptions , log out component , details of error occurring. it's speeded development , 1 of key pieces of functionality wanted able offer in project. note in screenshot below of error passed open log ssjs code displayed, has no try/catch block.

enter image description here

the link xpages openlog logger http://www.openntf.org/internal/home.nsf/project.xsp?action=opendocument&name=xpages%20openlog%20logger


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