8364752: Class java.time.Instant cannot parse all ISO 8601 date formats

[naotoj]

Instant.parse() is expected to use the offset zone pattern +HH:mm:ss (as defined by DateTimeFormatterBuilder.appendOffsetId()), but it fails to parse hour-only offsets such as +02. This is because the actual implementation uses +HH:MM:ss as the pattern. While replacing the pattern in the implementation as with the specification would allow hour-only offsets, it would also introduce compatibility issues, i.e., printing would omit the minutes field when it is zero. So, it is preferable to update the specification to match the implementation. A CSR has also been drafted for this change.

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Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
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• Commit message must refer to an issue
• Change requires CSR request JDK-8365182 to be approved

Issues

• JDK-8364752: Class java.time.Instant cannot parse all ISO 8601 date formats (Bug - P3)
• JDK-8365182: Class java.time.Instant cannot parse all ISO 8601 date formats (CSR)

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[bridgekeeper]

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[openjdk]

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[mlbridge]

Webrevs

• 00: Full (7fc267a3)

[ExE-Boss]

How about using different patterns for parsing and printing instead?