Grails 2.3 + Resources - NullPointerException

[sergiomichels]

When changing a javascript file in a folder inside web-app I'm getting:

java.lang.NullPointerException: Cannot get property 'grailsResourceProcessor' on null object

at org.codehaus.groovy.runtime.NullObject.getProperty(NullObject.java:56)

at org.codehaus.groovy.runtime.InvokerHelper.getProperty(InvokerHelper.java:169)

at org.codehaus.groovy.runtime.callsite.NullCallSite.getProperty(NullCallSite.java:44)

at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGetProperty(AbstractCallSite.java:227)

at ResourcesGrailsPlugin$_closure4_closure20.doCall(ResourcesGrailsPlugin.groovy:211)

at ResourcesGrailsPlugin$_closure4_closure20.doCall(ResourcesGrailsPlugin.groovy)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at org.springsource.loaded.ri.ReflectiveInterceptor.jlrMethodInvoke(ReflectiveInterceptor.java:1259)

at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoCachedMethodSiteNoUnwrapNoCoerce.invoke(PogoMetaMethodSite.java:272)

at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.call(PogoMetaMethodSite.java:64)

at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)

at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108)

at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:112)

at ResourcesGrailsPlugin$_triggerReload_closure7.doCall(ResourcesGrailsPlugin.groovy:198)

at ResourcesGrailsPlugin$_triggerReload_closure7.doCall(ResourcesGrailsPlugin.groovy)

Anyone seeing this?

--

Sérgio Michels

[Kimble]

I'm experiencing the same with Grails 2.3.2.

[sezer.yilmaz]

Same here with 2.3.4. Could anyone figure out the reason for that ?

[houbie]

This is caused by forked execution: there are two parallel onChange events fired, one in the app that runs successfully, and one in the starter jvm that fails because there is no spring context.

I submitted a pull request to avoid the NPE in the resources plugin, but it seems likely that other plugins will have similar problems in forked execution :(

Maybe there should be a distinction between both onChange events...

Grtz,
Ivo