Fix DDB Enhanced Client immutable class introspection fails for "is" prefix fields

[S-Saranya1]

Fix DDB Enhanced Client immutable class introspection fails for "is" prefix fields. Fixes #4446.

Motivation and Context

TableSchema.fromImmutableClass() fails with IllegalArgumentException when processing immutable classes that have boolean fields using "is" prefix in both getters and setters (e.g., isRusty() getter and isRusty(boolean) setter).

Root Cause
The ImmutableIntrospector had getter, setter name normalization logic where getter normalization removes "is" prefix (isRusty() - "rusty") but setter normalization keeps "is" prefix (isRusty(boolean) - "isRusty"). This caused property matching to fail and cause this exception - java.lang.IllegalArgumentException: A method was found on the immutable class that does not appear to have a matching setter on the builder class.

Modifications

Modified normalizeSetterName() method in ImmutableIntrospector to add logic for handling "is" prefix for boolean parameters with the same logic as in normalizeGetterName(). This ensures both getter and setter methods now normalize to the same property name, enabling proper matching during introspection.

Testing

• Added Unit test to test this case.

Screenshots (if appropriate)

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)

Checklist

• I have read the CONTRIBUTING document
• Local run of mvn install succeeds
• My code follows the code style of this project
• My change requires a change to the Javadoc documentation
• I have updated the Javadoc documentation accordingly
• I have added tests to cover my changes
• All new and existing tests passed
• I have added a changelog entry. Adding a new entry must be accomplished by running the scripts/new-change script and following the instructions. Commit the new file created by the script in .changes/next-release with your changes.
• My change is to implement 1.11 parity feature and I have updated LaunchChangelog

License

• I confirm that this pull request can be released under the Apache 2 license

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
88.0% Coverage on New Code
0.0% Duplication on New Code

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