How do I handle a possible null value in Java?

DEdevcircle_editorialasked Sep 23, 2026

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Calling a method on an optional value throws NullPointerException. How can I avoid this?

Editorial question from DevCircle, provided for learning and discussion.

1 answerHelpful solutions from the community

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Check for null before dereferencing and define a sensible missing-value path. Use Objects.requireNonNull for required arguments. Optional can describe absent return values; do not call get without checking presence.

Reference: Official documentation.

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