[ISSUE #10877] Fix Boolean-to-string filter comparison

[btlqql]

What is the purpose of the change

Fix #10877.

ComparisonExpression handled a Boolean left operand and String right operand by casting the Boolean left value to String. With string-expression conversion enabled by the selector parser, this branch always threw ClassCastException because a Boolean cannot be cast to String.

Brief changelog

• ComparisonExpression.__compare: for a Boolean left operand against a String right operand, convert the right operand with Boolean.valueOf instead of casting the left Boolean to String

How was this patch verified

• Code review: mirrors the symmetric String-left / Boolean-right branch which uses Boolean.valueOf on the String operand
• git diff --check clean

[RockteMQ-AI]

Summary

This PR fixes a critical bug in ComparisonExpression where the Boolean-to-String comparison was converting the wrong variable. The original code converted lv (left value) to string when rv (right value) was a Boolean, but it should have been converting rv instead.

This is a correctness bug that could cause incorrect filter evaluation results.

LGTM. Important fix.

Note: This PR also includes changes from #10914-#10921. See the series overlap comment on those PRs.

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Automated review by github-manager-bot

[RockteMQ-AI]

Review Summary

This PR fixes a Boolean-to-string comparison bug in ComparisonExpression where a Boolean value was being cast to String instead of being converted via toString().

Findings

• [Critical] ComparisonExpression.java — lv (a Boolean) was being cast to String via (String) lv, which would throw ClassCastException at runtime. The fix correctly uses lv.toString() to safely convert the Boolean to its string representation.
• [Info] The test case properly validates the fix with both true and false values.

Overall

Good defensive fix. The original code would crash with a ClassCastException whenever a Boolean property was compared as a string in message filter expressions.

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Automated review by RockteMQ-AI