Error
freemarker.core.InvalidReferenceException: The following has evaluated to null or missing:
==> ws.getCategory() [in template "macro.ftl" at line 11, column 98]
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Tip: If the failing expression is known to be legally refer to something that's null or missing, either specify a default value like myOptionalVar!myDefault, or use [#if myOptionalVar??]when-present[#else]when-missing[/#if]. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)??
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FTL stack trace ("~" means nesting-related):
- Failed at: #assign cat = ws.getCategory() [in template "macro.ftl" in macro "showCategory" at line 11, column 83]
- Reached through: @showCategory [in template "macro.ftl" at line 12, column 22]
- Reached through: #include "macro.ftl" [in template "web.ftl" at line 1, column 1]
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