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Functional exception handling in Java v1.0.0

Use this resource to replace business flow exceptions with explicit error types in Java

New

  • 365 downloads
  • 123 likes
  • 161 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install functional-exception-handling

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent uses Optional for absent values, Either for predictable failures, CompletableFuture for async code and sealed types to structure errors. Exceptions stay reserved for truly exceptional system failures.

Mostly picked by

Updated November 2, 2026

Card for the “Functional exception handling in Java” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
Apache-2.0

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What you get

  • SKILL.md : refactoring rules and workflow
  • references/143-java-functional-exception-handling.md : Optional, Either and error type patterns

Good fit for

  • A business flow throws exceptions for expected cases
  • A method returns null and forces repeated checks

Not for

    Tags

    • errors
    • vavr
    • either
    • optional

    About

    You say

    “Replace the validation exceptions of this service with a VAVR Either.”

    Card for the “Functional exception handling in Java” skill

    Skill published by jabrena under the Apache-2.0 license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to replace business flow exceptions with explicit error types in Java
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE11.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • references/143-java-functional-exception-handling.md58.8 KB
    • SKILL.md3.9 KB

    Origin and licence

    Listed unmodified

    Author
    jabrena
    Source
    github.com/jabrena/plinth/tree/b1c04e39a93d9aac4a70e5154cd50ab6d47fdcf8/skills/143-java-functional-exception-handling
    Licence
    Apache-2.0

    Notice

    « 143-java-functional-exception-handling » (jabrena, Apache-2.0) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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