Question

Can someone tell me why this Grails domain class will not compile (at runtime)?

class Person {
    String name

    String getSomething(int i) {
    }
}

I get this error when I run with grails run-app:

2008-12-27 15:26:33.955::WARN:  Failed startup of context org.mortbay.jetty.webapp.WebAppContext@187e184{/asrs2,C:\Steve\asrs2/web-app}
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'pluginManager' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.NullPointerException
        at java.security.AccessController.doPrivileged(Native Method)
        at RunApp_groovy$_run_closure2_closure7.doCall(RunApp_groovy:67)
        at RunApp_groovy$_run_closure2_closure7.doCall(RunApp_groovy)
        at Init_groovy$_run_closure6.doCall(Init_groovy:131)
        at RunApp_groovy$_run_closure2.doCall(RunApp_groovy:66)
        at RunApp_groovy$_run_closure2.doCall(RunApp_groovy)
        at RunApp_groovy$_run_closure1.doCall(RunApp_groovy:57)
        at RunApp_groovy$_run_closure1.doCall(RunApp_groovy)
        at gant.Gant.dispatch(Gant.groovy:271)
        at gant.Gant.this$2$dispatch(Gant.groovy)
        at gant.Gant.invokeMethod(Gant.groovy)
        at gant.Gant.processTargets(Gant.groovy:436)
        at gant.Gant.processArgs(Gant.groovy:372)
Caused by: java.lang.NullPointerException
        at java.lang.Class.isAssignableFrom(Native Method)
        ... 13 more

If I change the method getSomething to doSomething then it works. Is getSomething(int i) somehow being treated as a bean method?

Follow up: This is a Grails bug which will be fixed in 1.2.

Answer 1

I’ve concluded that this is a bug with Grails. I’ve created GRAILS-3760 which has been fixed in Grails 1.1.2.