Question

使用Grails 3.3.2在Gorm 6.1中获取此异常：

    Exception in thread "Thread-8" BUG! exception in phase 'semantic analysis' in source unit '/Users/emmanuj/projects/cleena/demo/src/main/groovy/com/emmanuj/cleena/UserService.groovy' unexpected NullpointerException
            at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1070)
            at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:603)
            at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:581)
            at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:558)
            at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:537)
            at grails.boot.GrailsApp.compileGroovyFile(GrailsApp.groovy:313)
            at grails.boot.GrailsApp.recompile(GrailsApp.groovy:299)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
            at java.lang.reflect.Method.invoke(Method.java:498)
            at org.springsource.loaded.ri.ReflectiveInterceptor.jlrMethodInvoke(ReflectiveInterceptor.java:1427)
            at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
            at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
            at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:384)
            at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1022)
            at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.callCurrent(PogoMetaClassSite.java:69)
            at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:52)
            at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:154)
            at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:182)
            at grails.boot.GrailsApp$_enableDevelopmentModeWatch_closure1.doCall(GrailsApp.groovy:240)
            at grails.boot.GrailsApp$_enableDevelopmentModeWatch_closure1.doCall(GrailsApp.groovy)
            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
            at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
            at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
            at java.lang.reflect.Method.invoke(Method.java:498)
            at org.springsource.loaded.ri.ReflectiveInterceptor.jlrMethodInvoke(ReflectiveInterceptor.java:1427)
            at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
            at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
            at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294)
            at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1022)
            at groovy.lang.Closure.call(Closure.java:414)
            at groovy.lang.Closure.call(Closure.java:408)
            at groovy.lang.Closure.run(Closure.java:495)
            at java.lang.Thread.run(Thread.java:748)
    Caused by: java.lang.NullPointerException
            at org.grails.datastore.gorm.services.implementers.AbstractDetachedCriteriaServiceImplementor.doImplement(AbstractDetachedCriteriaServiceImplementor.groovy:79)
            at org.grails.datastore.gorm.services.implementers.AbstractReadOperationImplementer.implement(AbstractReadOperationImplementer.groovy:62)
            at org.grails.datastore.gorm.services.transform.ServiceTransformation.visitAfterTraitApplied(ServiceTransformation.groovy:278)
            at org.grails.datastore.gorm.transform.AbstractTraitApplyingGormASTTransformation.visit(AbstractTraitApplyingGormASTTransformation.groovy:52)
            at org.grails.datastore.gorm.transform.AbstractTraitApplyingGormASTTransformation.visit(AbstractTraitApplyingGormASTTransformation.groovy:42)
            at org.grails.datastore.gorm.transform.AbstractGormASTTransformation.visit(AbstractGormASTTransformation.groovy:59)
            at org.codehaus.groovy.transform.ASTTransformationVisitor.visitClass(ASTTransformationVisitor.java:134)
            at org.codehaus.groovy.transform.ASTTransformationVisitor$2.call(ASTTransformationVisitor.java:178)
            at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1065)
            ... 34 more

重现步骤

创建新的Grails 3.3.2项目

创建一个名为User的域类，如下所示：

import grails.compiler.GrailsCompileStatic

@GrailsCompileStatic
class User {

    String name
    static constraints = {
    }
}

以下Gorm数据服务接口和类：

package com.emmanuj.cleena

/**
 * DataService interface for user domain
 */
interface IUserService {
    User get(Serializable id)
    List<User> list(Map args)
    Long count()
    void delete(Serializable id)
    User save(User user)
}

一个抽象类实现：

    @Slf4j
    @Service(User)
    abstract class UserService implements IUserService {
        def grailsApplication
        List<User> search(User currentUser, long radius, int offset, int max){
            return []
        }

        def getZipcodes(String zipCode, long radius) {
            return []
        }

    }

从交互式提示中运行您的grails应用程序。
对UserService进行更改
重新编译时发生异常/崩溃。

Groovy版本是2.4.13

Answer 1

我在github repo上打开了一个问题。看起来像GORM Hibernate错误：https://github.com/grails/gorm-hibernate5/issues/72。但他们已将其关闭为“无法修复”。不知道为什么......

Answer 2

重新启动 Grails 服务器解决了该问题。

以下是实际解释-

我创建了一个工作正常的类，然后我将它更新为关联另一个依赖类，Grails 抛出了这个错误。该错误仅意味着当服务器运行时需要创建更多对象时，它无法编译您已经编译的类。

线程中的Grails / Gorm / Exception＆＃34; Thread-8＆＃34; BUG！阶段性异常＆＃39;语义分析＆＃39;在源单位

重现步骤

2 个答案: