Could not instantiate custom Metaclass for class: grails.plugins.quartz.QuartzJob$Trait$Helper

[jglapa]

Trying to upgrade to grails 6.2 and quartz-plugin 3.0.
With Java17 deployed as war to tomcat9.

Getting this upon invocation attempt:

Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [java.lang.Object]: Factory method 'newInstance' threw exception; nested exception is org.grails.core.exceptions.NewInstanceCreationException: Could not create a new instance of class [com.my.MyJob]!
        at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)
        at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:641)
        ... 12 common frames omitted
Caused by: org.grails.core.exceptions.NewInstanceCreationException: Could not create a new instance of class [com.my.MyJobb]!
        at org.grails.core.AbstractGrailsClass.newInstance(AbstractGrailsClass.java:129)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:568)
        at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
        ... 13 common frames omitted
Caused by: groovy.lang.GroovyRuntimeException: Could not instantiate custom Metaclass for class: grails.plugins.quartz.QuartzJob$Trait$Helper. Reason: java.lang.IllegalStateException: java.io.IOException: java.lang.reflect.InvocationTargetException
        at groovy.lang.MetaClassRegistry$MetaClassCreationHandle.createWithCustomLookup(MetaClassRegistry.java:158)
        at groovy.lang.MetaClassRegistry$MetaClassCreationHandle.create(MetaClassRegistry.java:139)
        at org.codehaus.groovy.reflection.ClassInfo.getMetaClassUnderLock(ClassInfo.java:272)
        at org.codehaus.groovy.reflection.ClassInfo.getMetaClass(ClassInfo.java:315)
        at org.codehaus.groovy.runtime.metaclass.MetaClassRegistryImpl.getMetaClass(MetaClassRegistryImpl.java:258)
        at org.codehaus.groovy.runtime.InvokerHelper.getMetaClass(InvokerHelper.java:994)
        at org.codehaus.groovy.runtime.callsite.CallSiteArray.createCallStaticSite(CallSiteArray.java:71)
        at org.codehaus.groovy.runtime.callsite.CallSiteArray.createCallSite(CallSiteArray.java:156)
        at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
        at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:139)
        at com.my.MyJob.<init>(MyJob.groovy)
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
        at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
        at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:480)
        at org.grails.core.AbstractGrailsClass.newInstance(AbstractGrailsClass.java:118)
        ... 18 common frames omitted
Caused by: java.lang.IllegalStateException: java.io.IOException: java.lang.reflect.InvocationTargetException
        at org.apache.catalina.webresources.AbstractSingleArchiveResourceSet.getArchiveEntry(AbstractSingleArchiveResourceSet.java:101)
        at org.apache.catalina.webresources.AbstractArchiveResourceSet.getResource(AbstractArchiveResourceSet.java:263)
        at org.apache.catalina.webresources.StandardRoot.getResourceInternal(StandardRoot.java:281)
        at org.apache.catalina.webresources.Cache.getResource(Cache.java:64)
        at org.apache.catalina.webresources.StandardRoot.getResource(StandardRoot.java:216)
        at org.apache.catalina.webresources.StandardRoot.getClassLoaderResource(StandardRoot.java:225)

[jglapa]

The problem went away after restarting and did not come back. I'm a bit puzzled what that was but I'm closing the issue