[Bug] Accept zero and negative floating-point literals - #11034
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Signed-off-by: zjncs <18910855655@163.com>
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September 5, 2026 09:29
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Summary
Correct fix — Double.MIN_VALUE is the smallest positive value (4.9e-324), not the most negative value. The original code incorrectly rejected zero and negative floats. Using -Double.MAX_VALUE as the lower bound is correct.
The test validates parsing of 0.0 and -0.5, which would have failed before.
LGTM.
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Fixes #10862
ConstantExpression.createFloat now uses -Double.MAX_VALUE as the finite lower bound. Double.MIN_VALUE is the smallest positive non-zero value, so using it incorrectly rejected 0.0 and valid negative literals.
Added parser regression cases for 0.0 and -0.5. Positive and negative infinity remain outside the accepted finite range.
Verification: git diff --check passed; Maven unavailable locally, CI should run ParserTest/filter checks. AI-assisted contribution.