Handle currency data on Java 21

[jodastephen]

• Adjust code so the symbol for currency XXX remains as XXX

Summary by CodeRabbit

• New Features

  • Enhanced currency symbol representation for the code "XXX" to ensure it returns the code itself instead of a different symbol.

• Bug Fixes

  • Improved handling of currency symbols for the Locale.US, ensuring accurate representation in tests for edge cases.

[coderabbitai]

Walkthrough

Walkthrough

The changes to the CurrencyUnit class in the org.joda.money package enhance the handling of the currency code "XXX" in the getSymbol methods. When the code is "XXX", the methods now return the code itself rather than relying on the Java Currency instance. Additionally, the test suite has been updated to ensure this behaviour is thoroughly validated across different locales, improving the overall robustness of the currency symbol representation.

Changes

Files	Change Summary
src/main/java/org/joda/money/CurrencyUnit.java	The getSymbol methods were updated to return "XXX" when the currency code is "XXX", altering control flow.
src/test/java/org/joda/money/TestCurrencyUnit.java	An additional assertion was added to test the behaviour of getSymbol for the code "XXX" in the US locale.

Sequence Diagram(s)

sequenceDiagram
    participant Client
    participant CurrencyUnit
    
    Client->>CurrencyUnit: getSymbol("XXX", Locale.US)
    CurrencyUnit-->>Client: "XXX"

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This diagram illustrates the interaction when a client requests the symbol for the "XXX" currency code, highlighting the direct return of the code as the symbol.

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Actionable comments posted: 0

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 2e9de47 and 13f7bac.

Files selected for processing (2)

• src/main/java/org/joda/money/CurrencyUnit.java (2 hunks)
• src/test/java/org/joda/money/TestCurrencyUnit.java (1 hunks)

Additional comments not posted (3)

src/main/java/org/joda/money/CurrencyUnit.java (2)

580-583: Edge case handling for currency code "XXX".

The modification correctly handles the edge case for the currency code "XXX" by returning the code itself. This ensures consistency with the intended behaviour.

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604-607: Consistent handling of "XXX" currency code with locale.

The method modification ensures that the currency code "XXX" returns "XXX", maintaining consistency with the non-locale version.

src/test/java/org/joda/money/TestCurrencyUnit.java (1)

715-716: Enhanced test coverage for "XXX" currency code.

The additional assertion verifies that the getSymbol method returns "XXX" for Locale.US, ensuring consistent behaviour across locales.