How did this start happening ? Did you just modify the class path from pointing to an older tapestry version to a newer one ?
Please state your app configuration. Things like: *SymbolConstants.MINIFICATION_ENABLED* On Mon, Jun 11, 2012 at 9:43 AM, Poder, Jacob <jacob.po...@thermofisher.com>wrote: > Hi, > > I'm having the problem described here: > https://issues.apache.org/jira/browse/TAP5-1777 > > The issue has been closed as not a problem, but I'm still getting this > error even though I cleared browser cache as suggested. The error happens > in IE8 and IE9 but not in Firefox or Chrome. > For me It's easily reproducible, so would someone please try below > Tapestry page example in an IE browser? > > > 1) Submit the form (using the default value of 0), by pressing enter > > 2) A validation error is shown (validate="min=1") > > 3) Change the value to a positive number, e.g. 10 and resubmit. > > The result is an exception "A JSONArray text must start with '[' at > character 1 of null". > > Thank you, > Jacob > > > // Test.java > public class Test { > > @Property > private int rowsPerPage; > } > > > // Test.tml > <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" " > http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> > <html xmlns="http://www.w3.org/1999/xhtml" xmlns:t=" > http://tapestry.apache.org/schema/tapestry_5_1_0.xsd"> > <head> > <title>Form test</title> > </head> > <body> > > <t:form t:id="pageSizeForm" > > <t:textfield t:id="pagesize" value="rowsPerPage" > validate="min=1" /> > </t:form> > > </body> > </html> > -- *Regards,* *Muhammad Gelbana Java Developer*