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Migrating COBOL to idiomatic Java v1.0.0

Use this resource to migrate COBOL to idiomatic Java while keeping the business logic

New

  • 584 downloads
  • 172 likes
  • 210 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install cobol-to-idiomatic-java

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 rewrites the COBOL as readable Java that follows common practice: camelCase names, standard collections, single-responsibility classes, input validation and I/O error handling. It relies on type mapping tables and an example, then adds tests. You get Java code that keeps the original business logic.

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Updated November 2, 2026

Card for the “Migrating COBOL to idiomatic Java” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

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What you get

  • SKILL.md: style, robustness, configuration and testing requirements
  • references/datatype-mappings.md: COBOL to Java type mapping
  • references/cobol-to-java-example.md: commented migration example

Good fit for

  • You are modernising a COBOL system and want maintainable Java code
  • Your team must take over the logic of a COBOL batch program in Java

Not for

    Tags

    • cobol
    • java
    • migration
    • modernization

    About

    You say

    “Migrate the interest calculation program to idiomatic Java and add the tests.”

    Card for the “Migrating COBOL to idiomatic Java” skill

    Skill published by openhands under the MIT 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 migrate COBOL to idiomatic Java while keeping the business logic
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • references/cobol-to-java-example.md1.6 KB
    • references/datatype-mappings.md0.6 KB
    • SKILL.md2.1 KB

    Origin and licence

    Listed unmodified

    Author
    openhands
    Source
    github.com/openhands/extensions/tree/21981f63bc10a52d3f81432e084b7093689ac47b/plugins/cobol-modernization/skills/to-java-migration
    Licence
    MIT

    Notice

    « to-java-migration » (openhands, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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