[FREEMARKER-48] When custom fremarker method throws exception, it is impossible to find line/row where called

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.3.25-incubating, 2.3.26-incubating
• Fix Version/s: 2.3.27-incubating
• Component/s: engine
• Environment: Any
• Assignee: Unassigned
• Reporter: Vojtech Knyttl
• Created: 25/Mar/17 06:57
• Updated: 03/Nov/17 22:02
• Resolved: 26/Sep/17 22:04

Description

Consider this stacktrace:

https://gist.github.com/knyttl/dba8f94b9736eb2751074c34dce7b467

On line `DispatcherServlet.renderView(DispatcherServlet.java:308)` I have started freemarker to render a template. During that process it uses custom method (`HrefMethod.exec(HrefMethod.java:28)`), but this method threw an exception. However Freemarker does not report a line/row of the template where this method was called making it very hard for debug.

I would be happy if `freemarker.core.MethodCall._eval(MethodCall.java:65)` had some try-catch blcok, that in case of an exception would add lines/rows/details of the element that caused the exception.