Publisher {
    String name
}

class Book {
    String title
    Publisher publisher
    static constraints = {
        publisher nullable: true
    }
}

ERROR org.grails.web.errors.GrailsExceptionResolver - NullPointerException occurred when processing request: [PUT] /book/1
Stacktrace follows:
java.lang.reflect.InvocationTargetException: null
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException: null
        at test.BookController.$tt__update(BookController.groovy:54)
        at grails.transaction.GrailsTransactionTemplate$2.doInTransaction(GrailsTransactionTemplate.groovy:96)
        at grails.transaction.GrailsTransactionTemplate.execute(GrailsTransactionTemplate.groovy:93)
        at grails.transaction.GrailsTransactionTemplate$2.doInTransaction(GrailsTransactionTemplate.groovy:96)
        at grails.transaction.GrailsTransactionTemplate.execute(GrailsTransactionTemplate.groovy:93)
        ... 3 common frames omitted

{
    id: 1, 
    title: "Along Came a Spider", 
    publisher: {}
}

Property dateCreated must be a valid Date
Property lastUpdated must be a valid Date

if(${controllerAs}.${propertyName}['dateCreated']){
            delete ${controllerAs}.${propertyName}['dateCreated'];
        }
        if(${controllerAs}.${propertyName}['lastUpdated']){
            delete ${controllerAs}.${propertyName}['lastUpdated'];
        }

buildscript {
    repositories {
        mavenLocal()
        maven { url "https://repo.grails.org/grails/core" }
    }
    dependencies {
        classpath "org.grails:grails-gradle-plugin:$grailsVersion"
        classpath "com.bertramlabs.plugins:asset-pipeline-gradle:2.8.2"
        classpath "org.grails.plugins:hibernate4:5.0.6"
    classpath "org.grails.plugins:angular-scaffolding:1.0.0.RC1"
    }
}

version "0.1"
group "app32"

apply plugin:"eclipse"
apply plugin:"idea"
apply plugin:"war"
apply plugin:"org.grails.grails-web"
apply plugin:"org.grails.grails-gsp"
apply plugin:"asset-pipeline"

repositories {
    mavenLocal()
    maven { url "https://repo.grails.org/grails/core" }
}

dependencyManagement {
    imports {
        mavenBom "org.grails:grails-bom:$grailsVersion"
    }
    applyMavenExclusions false
}

dependencies {
    compile "org.springframework.boot:spring-boot-starter-logging"
    compile "org.springframework.boot:spring-boot-autoconfigure"
    compile "org.grails:grails-core"
    compile "org.springframework.boot:spring-boot-starter-actuator"
    compile "org.springframework.boot:spring-boot-starter-tomcat"
    compile "org.grails:grails-dependencies"
    compile "org.grails:grails-web-boot"
    compile "org.grails.plugins:cache"
    compile "org.grails.plugins:scaffolding"
    //compile "org.grails.plugins:hibernate4"
    //compile "org.hibernate:hibernate-ehcache"
    console "org.grails:grails-console"
    compile "org.grails.plugins:spring-security-core:3.0.4"
    compile "org.grails.plugins:mongodb:5.0.8"
    profile "org.grails.profiles:web:3.2.0.M1"
    runtime "com.bertramlabs.plugins:asset-pipeline-grails:2.8.2"
    //runtime "com.h2database:h2"
    testCompile "org.grails:grails-plugin-testing"
    testCompile "org.grails.plugins:geb"
    testRuntime "org.seleniumhq.selenium:selenium-htmlunit-driver:2.47.1"
    testRuntime "net.sourceforge.htmlunit:htmlunit:2.18"
    compile "org.grails.plugins:angular-scaffolding:1.0.0.RC1"
}

task wrapper(type: Wrapper) {
    gradleVersion = gradleWrapperVersion
}

assets {
    minifyJs = true
    minifyCss = true
}

:compileJava UP-TO-DATE
:compileGroovy UP-TO-DATE
:processResources UP-TO-DATE
:classes UP-TO-DATE
:findMainClass
:ngGenerateAll

Configuring Spring Security Core ...
... finished configuring Spring Security Core

Command execution error: Error creating bean with name 'grails.angular.scaffolding.NgGenerateAllCommand': Unsatisfied dependency expressed through bean property 'grailsDomainClassMappingContext': No qualifying bean of type [org.grails.datastore.mapping.model.MappingContext] is defined: expected single matching bean but found 2: grailsDomainClassMappingContext,gormMongoMappingContext; nested exception is org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type [org.grails.datastore.mapping.model.MappingContext] is defined: expected single matching bean but found 2: grailsDomainClassMappingContext,gormMongoMappingContext
:ngGenerateAll FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':ngGenerateAll'.
> Process 'command '/***/bin/java'' finished with non-zero exit value 1

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Total time: 19.844 secs
| Error Command [ng-generate-all] error: Could not execute build using Gradle distribution 'https://services.gradle.org/distributions/gradle-2.13-all.zip'. (Use --stacktrace to see the full trace)

domain[property] = domain[property].map(function (obj) {
    return new Domain(obj);
});

if(domain[property] != null) {
    domain[property] = domain[property].map(function (obj) {
        return new Domain(obj);
    });
}

Ambiguous method overloading for method grails.plugin.scaffolding.angular.markup.AngularContextMarkupRendererImpl#inputContext.
Cannot resolve which method to invoke for [null, class grails.plugin.scaffolding.markup.DomainMarkupRendererImpl$_renderForm_closure2] due to overlapping prototypes between:
    [interface grails.plugin.scaffolding.model.property.DomainProperty, class groovy.lang.Closure]
    [interface org.grails.datastore.mapping.model.PersistentEntity, class groovy.lang.Closure]
null
[groovy.lang.MetaClassImpl.chooseMostSpecificParams(MetaClassImpl.java:3238), groovy.lang.MetaClassImpl.chooseMethodInternal(MetaClassImpl.java:3191), groovy.lang.MetaClassImpl.chooseMethod(MetaClassImpl.java:3134), groovy.lang.MetaClassImpl.getMethodWithCachingInternal(MetaClassImpl.java:1330), groovy.lang.MetaClassImpl.createPogoCallSite(MetaClassImpl.java:3402), org.codehaus.groovy.runtime.callsite.CallSiteArray.createPogoSite(CallSiteArray.java:150), org.codehaus.groovy.runtime.callsite.CallSiteArray.createCallSite(CallSiteArray.java:164), org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(Cal

Command execution error: Cannot cast object 'grails.gorm.validation.PersistentEn:ngGenerateAll FAILED
ator' to class 'org.grails.validation.GrailsDomainClassValidator'
FAILURE: Build failed with an exception.

  "/$controller/$action?/$id?(.$format)?"{
            constraints {
                // apply constraints here
            }
        }

    "/$controller/$id" {
            action = [ GET : "show", PUT: "update", DELETE: "delete" ]
        }

        "/$controller/" {
            action = [POST: "save", "GET": "index" ]
        }

dependencies {
...
compile 'org.grails.plugins:angular-scaffolding:1.0.0.M1'
...
}