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https://issues.apache.org/jira/browse/FREEMARKER-108?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16701226#comment-16701226
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Daniel Dekany commented on FREEMARKER-108:
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Can you show the template that leads to this?
> NPE while getting TemplateException message body
> ------------------------------------------------
>
> Key: FREEMARKER-108
> URL: https://issues.apache.org/jira/browse/FREEMARKER-108
> Project: Apache Freemarker
> Issue Type: Bug
> Affects Versions: 2.3.28
> Reporter: jce
> Priority: Major
>
> Hi, I have some issue in ftl template, but exception is not clear. Processing
> of TemplateException fall on NPE:
> {quote}{{Caused by: java.lang.NullPointerException}}
> {{ at freemarker.core.BuiltIn.getCanonicalForm(BuiltIn.java:387)}}
> {{ at
> freemarker.core.DesanitizeLegacyEscapingBIWrapper.getCanonicalForm(DesanitizeLegacyEscapingBIWrapper.java:24)}}
> {{ at freemarker.core.DollarVariable.dump(DollarVariable.java:108)}}
> {{ at freemarker.core.Interpolation.dump(Interpolation.java:29)}}
> {{ at
> freemarker.core.TemplateElement.getDescription(TemplateElement.java:95)}}
> {{ at
> freemarker.core.Environment.appendInstructionStackItem(Environment.java:2208)}}
> {{ at
> freemarker.core.Environment.instructionStackItemToString(Environment.java:2203)}}
> {{ at
> freemarker.core.Environment.outputInstructionStack(Environment.java:2123)}}
> {{ at freemarker.core._CoreAPI.outputInstructionStack(_CoreAPI.java:157)}}
> {{ at
> freemarker.template.TemplateException.getFTLInstructionStackTopFew(TemplateException.java:262)}}
> {{ at
> freemarker.template.TemplateException.renderMessages(TemplateException.java:180)}}
> {{ at
> freemarker.template.TemplateException.getMessage(TemplateException.java:442)}}
> {quote}
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