[JEXL-351] JXLT Template fails when using sandboxing

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 3.2
• Fix Version/s: 3.2.1
• Assignee: Henri Biestro
• Reporter: Henri Biestro
• Created: 08/Jun/21 09:30
• Updated: 25/Jun/21 16:25
• Resolved: 08/Jun/21 16:30

Description

Regression, total loss of functionality.

In 3.2:
When the JEXL engine is built with a custom sandboxing Uberspect that strictly narrows the classes and methods allowed, the TemplateInterpreter methods may end up being in the blocked list. Since the interpreter relies on finding the methods to operate, the whole template silently fails with an empty content.

The fix is to mimic 3.1, the AST nodes for the jexl:print and jexl:includes calls being interpreted directly.