7.0.x Fix for Fields Rendering of java.time.*

[codeconsole]

Show DateTime

7.0.0

Field	Value
Calendar	2025-10-08 00:48:46 PDT
Date	2025-10-08 00:48:46 PDT
sql.Date	Exception Thrown
sql.Time	Exception Thrown
sql.Timestamp	Exception Thrown
LocalTime	Exception Thrown
Instant	2025-10-08T07:48:46.407254Z
Local Date	Exception Thrown
Local DateTime	2025-10-08 00:48:46 PDT
OffsetDateTime	2025-10-08T00:48:46.407254-07:00
ZonedDateTime	2025-10-08T00:48:46.407254-07:00[America/Los_Angeles]

With This Fix

Field	Value
Calendar	2025-10-08 00:48:46 PDT
Date	2025-10-08 00:48:46 PDT
sql.Date	2025-10-08 00:48:46 PDT
sql.Date	12:48 PM
sql.Time	12:48 PM
sql.Timestamp	2025-10-08 00:48:46 PDT
Instant	2025-10-08 00:48:46 PDT
Local Date	2025-10-08
Local DateTime	2025-10-08 00:48:46 PDT
OffsetDateTime	2025-10-08 00:48:46 PDT
ZonedDateTime	2025-10-08 00:48:46 PDT

Edit/Create DateTime

7.0.0

Field	Value
Calendar	Date Precision
Date	Date Precision
sql.Date	Date Precision
sql.Time	Date Time Minute Precision
sql.Timestamp	Broken
LocalTime	Broken
Instant	Broken
Local Date	Broken
Local DateTime	Date Time Minute Precision
OffsetDateTime	Broken
ZonedDateTime	Broken

With This Fix

Field	Value
Calendar	Date Precision
Date	Date Precision
sql.Time	Date Time Minute Precision
sql.Timestamp	Broken
LocalTime	Broken
Instant	Date Precision
Local Date	Date Precision
Local DateTime	Date Time Minute Precision
OffsetDateTime	Date Precision
ZonedDateTime	Date Precision

Remaining JSON Issues:

Spring Boot

"time":"00:48:46","localTime":"00:48:46.407254",

Grails 7

"time":"2025-10-08T07:48:46.407Z","localTime":{"hour":0,"minute":48,"nano":407254000,"second":46}

[sbglasius]

Perhaps, for a future version, make ZoneId.systemDefault() into something that could be configured?

[jdaugherty]

We originally said "bug" fixes would only go in 7.0.1 and features in 7.1.0. I'm ok with the change going into 7.0.1, but we probably should make sure @jamesfredley & @matrei agree with this.

[codeconsole]

We originally said "bug" fixes would only go in 7.0.1 and features in 7.1.0. I'm ok with the change going into 7.0.1, but we probably should make sure @jamesfredley & @matrei agree with this.

Right, I think this is a bug fix because the new fields don't even work. @jdaugherty look at the Edit/Create view results

[codeconsole]

I think we should move to second or even nanosecond precision in 7.1.x
Currently with dates in scaffold views, all time information is lost on update

[codeconsole]

java.sql.Date on /show page results in

14:01:16,958 |-WARN in Logger[StackTrace] - No appenders present in context [default] for logger [StackTrace].
2025-10-17T14:01:16.959-07:00 ERROR 65880 --- [nio-8082-exec-4] .C.[.[.[.[dispatcherServletRegistration] : Servlet.service() for servlet [dispatcherServletRegistration] in context with path [] threw exception [Request processing failed: org.grails.gsp.GroovyPagesException: Error processing GroovyPageView: [Byte array resource [view:-,-,dateTime:show]:33] Error executing tag <f:display>: Unsupported field: HourOfDay] with root cause

java.time.temporal.UnsupportedTemporalTypeException: Unsupported field: HourOfDay
        at java.base/java.time.LocalDate.get0(LocalDate.java:698)
        at java.base/java.time.LocalDate.getLong(LocalDate.java:678)
        at java.base/java.time.format.DateTimePrintContext$1.getLong(DateTimePrintContext.java:205)
        at java.base/java.time.format.DateTimePrintContext.getValue(DateTimePrintContext.java:308)
        at java.base/java.time.format.DateTimeFormatterBuilder$NumberPrinterParser.format(DateTimeFormatterBuilder.java:2915)
        at java.base/java.time.format.DateTimeFormatterBuilder$CompositePrinterParser.format(DateTimeFormatterBuilder.java:2539)
        at java.base/java.time.format.DateTimeFormatter.formatTo(DateTimeFormatter.java:1905)
        at java.base/java.time.format.DateTimeFormatter.format(DateTimeFormatter.java:1879)
        at org.grails.plugins.web.DefaultGrailsTagDateHelper.format(DefaultGrailsTagDateHelper.groovy:108)
        at org.codehaus.groovy.vmplugin.v8.IndyInterface.selectMethod(IndyInterface.java:355)
        at org.codehaus.groovy.vmplugin.v8.IndyInterface.fromCache(IndyInterface.java:321)
        at org.grails.plugins.web.taglib.FormatTagLib$_closure2.doCall(FormatTagLib.groovy:204)
        at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
        at org.grails.taglib.TagOutput.captureTagOutput(TagOutput.java:84)
        at org.grails.taglib.TagLibraryMetaUtils$_registerMethodMissingForTags_closure3.doCall(TagLibraryMetaUtils.groovy:81)
        at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
        at org.codehaus.groovy.vmplugin.v8.IndyInterface.fromCache(IndyInterface.java:321)
        at grails.plugin.formfields.FormFieldsTagLib.renderDefaultDisplay(FormFieldsTagLib.groovy:964)