[TAP5-1906] Interaction between client-side validation and submit buttons can result in a server-side error parsing JSON array

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 5.3, 5.4
• Fix Version/s: 5.3.3, 5.4
• Component/s: tapestry-core
• Labels: form
• Assignee: Howard Lewis Ship
• Reporter: Howard Lewis Ship
• Created: 16/Apr/12 17:27
• Updated: 16/Apr/12 19:44
• Resolved: 16/Apr/12 18:24

Description

Enter invalid text into a field that has client side validation
Hit enter (to submit the form)
Update the field value to be valid
Hit enter (to submit the form)
Form is submitted with a query parameter "t:submit" set to the blank string
This triggers an exception inside Form:

A JSONArray text must start with '[' at character 0 of

org.apache.tapestry5.json.JSONTokener.syntaxError(JSONTokener.java:384)
org.apache.tapestry5.json.JSONArray.parse(JSONArray.java:126)
org.apache.tapestry5.json.JSONArray.<init>(JSONArray.java:95)
org.apache.tapestry5.corelib.components.Form.isFormCancelled(Form.java:590)
org.apache.tapestry5.corelib.components.Form.advised$onAction_12856ebccc3a27e0(Form.java:511)
org.apache.tapestry5.corelib.components.Form$Invocation_onAction_12856ebccc3a27df.proceedToAdvisedMethod(Unknown Source)
org.apache.tapestry5.internal.plastic.AbstractMethodInvocation.proceed(AbstractMethodInvocation.java:84)
org.apache.tapestry5.ioc.internal.services.LoggingAdvice.advise(LoggingAdvice.java:37)
org.apache.tapestry5.internal.plastic.AbstractMethodInvocation.proceed(AbstractMethodInvocation.java:86)
org.apache.tapestry5.corelib.components.Form.onAction(Form.java)