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Editorial Team
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Asked: 2026-06-15T22:33:38+00:00

I have a Thymeleaf template code to format a date . There are times

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I have a Thymeleaf template code to format a date. There are times when that date will be null in the returned object. What is the best way to check for null in Thymeleaf in this situation? Currently the template is throwing the following error:

Caused by: java.lang.IllegalArgumentException: Cannot apply format on null
    at org.thymeleaf.util.Validate.notNull(Validate.java:37)
    at org.thymeleaf.util.DateUtils.format(DateUtils.java:182)
    at org.thymeleaf.expression.Dates.format(Dates.java:164)
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1 Answer

  1. Editorial Team

    you can either use thymeleafs objects utility class Objects or validate the object before passing it to the template.

    i prefer the prevalidation as you normally do not want to hack around in your template. also that way you keep your data loosely coupled from the view.

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