Grails 4 "Static Type Checking" error only for Date objects

user_1167874 0
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So I am migrating from Grails 3.3.x to 4.0.13. When I try to compile my app I am getting compilation errors when I try to use the format method for any Date property. For exmaple

class Event {
    Date startDateTime
    Date regDeadline
}

Then in my GSON class I have this

model {
    Event event
}

json {
    eventDate event.startDateTime.format("MM/dd/yyyy hh:mm a")
    regDeadline event.regDeadline.format("MM/dd/yyyy hh:mm a")
}

I get the following compiling error

Exception in thread "main" org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
raa_domain_grid__event_gson: 10: [Static type checking] - Cannot find matching method java.util.Date#format(java.lang.String). Please check if the declared type is correct and if the method exists.
 @ line 10, column 15.
       eventDate event.startDateTime.format("MM/dd/yyyy hh:mm a")
                 ^
raa_domain_grid__event_gson: 11: [Static type checking] - Cannot find matching method java.util.Date#format(java.lang.String). Please check if the declared type is correct and if the method exists.
 @ line 11, column 17.
       regDeadline event.regDeadline.format("MM/dd/yyyy hh:mm a")

This worked without issues before. I suspect it has something to do with the Groovy upgrade to 2.5.6 but I don't see what that issue would be. This is happening throughout my entire app. All my Classes that have Dates as properties throw this error when I try to apply formatting to them. The above is just a simple example of that.

grails groovy
1 Answers

Just found that the Date helper methods were removed in Groovy 2.5 and put into another library groovy-dateutil. By adding this to my Gradle build file everything compiled as expected.

user_11678740
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