Spring-boot: Unable to resolve class groovy.json.JsonSlurper

[curtcox]

To recreate, put the following in a file, say bug.groovy

@RestController
class Bug {

    @RequestMapping("*")
    String home() {
        new groovy.json.JsonSlurper()
        "!"
    }

}

Run it:

spring run bug.groovy 
startup failed:
file:/Users/curt.cox/tmp/spring-boot/bug.groovy: 6: unable to resolve class groovy.json.JsonSlurper 
 @ line 6, column 6.
        new groovy.json.JsonSlurper()
        ^

1 error

When writing groovy scripts, all of the standard groovy classes should be available. If you delete the line creating JsonSlurper, the application runs as expected.

[wilkinsona]

JSONSlurper is in groovy-json which isn't on the classpath by default. If you want to use it, you can use @Grab:

@Grab("org.codehaus.groovy:groovy-json")
@RestController
class Works {

    @RequestMapping("*")
    String home() {
        new groovy.json.JsonSlurper()
        "!"
    }

}

There's no need for a version as Spring Boot's dependency management will take care of that for you.