[JEXL-311] Jxlt template scripts fail using verbatim expressions embedded in lambdas

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.1
• Fix Version/s: 3.2
• Assignee: Henri Biestro
• Reporter: Henri Biestro
• Created: 21/Aug/19 21:58
• Updated: 07/Jun/21 13:14
• Resolved: 21/Aug/19 22:05

Description

It seems lambdas in template break the template interpreter. Quick analysis shows the jexl namespace is not solved, the symbols are not recognised as such.

The following test should work. 

      @Test
    public void test311a() throws Exception {
        JexlContext ctx = null;
        String rpt
                = "$$((a)->{\n"
                + "<p>Universe ${a}</p>\n"
                + "$$})(42)";
        JxltEngine.Template t = JXLT.createTemplate("$$", new StringReader(rpt));
        StringWriter strw = new StringWriter();
        t.evaluate(ctx, strw);
        String output = strw.toString();
        Assert.assertEquals("<p>Universe 42</p>\n", output);
    }