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Editorial Team
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Asked: 2026-05-29T16:40:17+00:00

I’ve come across some places in java libraries that I’m building against where the

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I’ve come across some places in java libraries that I’m building against where the cause of an exception is set to the exception itself.

Is there any reason for the exception to reference itself as its cause?

EDIT

As requested, here is a concrete example:

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  1. Editorial Team

    No, that’s just bad design. If the exception is the root cause, it doesn’t need to define a cause.

    An exception that has a cause is a legit case for different exception wrappings. For example, if creating a persistence store, you might want to throw a PersistenceExcpetion. So then if it’s a file store, you can have the cause be an IOException. If it’s a database, maybe the cause is a SqlException. Etc

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