尝试从eclipse中的jaxb类生成模式时遇到错误

时间：2016-12-13 12:04:30

标签： jaxb

当我尝试从eclipse中的jaxb类生成模式时，我遇到了以下错误。 从下面的错误中，我能够理解该问题是使用jaxb类中注释的注释之一。

但是从下面的错误中，很难找到jaxb类导致错误的注释。

有人可以建议如何调试此问题。

错误：

！载入中...！

!com.XX.XXX.utils.Pageable!

 !com.XX.XX.utils.MetaData!

 !com.xx.xxx.utils.Page!
  Exception in thread "main" java.lang.ArrayStoreException:      sun.reflect.annotation.EnumConstantNotPresentExceptionProxy
at     sun.reflect.annotation.AnnotationParser.parseEnumArray(AnnotationParser.java:744)
at sun.reflect.annotation.AnnotationParser.parseArray(AnnotationParser.java:533)
at sun.reflect.annotation.AnnotationParser.parseMemberValue(AnnotationParser.java:355)
at sun.reflect.annotation.AnnotationParser.parseAnnotation2(AnnotationParser.java:286)
at sun.reflect.annotation.AnnotationParser.parseAnnotations2(AnnotationParser.java:120)
at sun.reflect.annotation.AnnotationParser.parseAnnotations(AnnotationParser.java:72)
at java.lang.reflect.Field.declaredAnnotations(Field.java:1150)
at java.lang.reflect.Field.declaredAnnotations(Field.java:1148)
at java.lang.reflect.Field.getDeclaredAnnotations(Field.java:1139)
at java.lang.reflect.AccessibleObject.getAnnotations(AccessibleObject.java:207)
at com.sun.xml.bind.v2.model.annotation.RuntimeInlineAnnotationReader.getAllFieldAnnotations(RuntimeInlineAnnotationReader.java:73)
at com.sun.xml.bind.v2.model.annotation.RuntimeInlineAnnotationReader.getAllFieldAnnotations(RuntimeInlineAnnotationReader.java:57)
at com.sun.xml.bind.v2.model.impl.ClassInfoImpl.findFieldProperties(ClassInfoImpl.java:381)
at com.sun.xml.bind.v2.model.impl.ClassInfoImpl.getProperties(ClassInfoImpl.java:311)
at com.sun.xml.bind.v2.model.impl.RuntimeClassInfoImpl.getProperties(RuntimeClassInfoImpl.java:186)
at com.sun.xml.bind.v2.model.impl.ModelBuilder.getClassInfo(ModelBuilder.java:261)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:104)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:85)
at com.sun.xml.bind.v2.model.impl.ModelBuilder.getClassInfo(ModelBuilder.java:227)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:99)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:85)
at com.sun.xml.bind.v2.model.impl.ModelBuilder.getTypeInfo(ModelBuilder.java:375)
at com.sun.xml.bind.v2.model.impl.TypeRefImpl.calcRef(TypeRefImpl.java:96)
at com.sun.xml.bind.v2.model.impl.TypeRefImpl.getTarget(TypeRefImpl.java:73)
at com.sun.xml.bind.v2.model.impl.RuntimeTypeRefImpl.getTarget(RuntimeTypeRefImpl.java:62)
at com.sun.xml.bind.v2.model.impl.RuntimeTypeRefImpl.getTarget(RuntimeTypeRefImpl.java:55)
at com.sun.xml.bind.v2.model.impl.ElementPropertyInfoImpl$1.get(ElementPropertyInfoImpl.java:78)
at com.sun.xml.bind.v2.model.impl.ElementPropertyInfoImpl$1.get(ElementPropertyInfoImpl.java:76)
at java.util.AbstractList$Itr.next(AbstractList.java:358)
at com.sun.xml.bind.v2.model.impl.ModelBuilder.getClassInfo(ModelBuilder.java:275)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:104)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:85)
at com.sun.xml.bind.v2.model.impl.ModelBuilder.getClassInfo(ModelBuilder.java:227)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:99)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:85)
at com.sun.xml.bind.v2.model.impl.ModelBuilder.getTypeInfo(ModelBuilder.java:375)
at com.sun.xml.bind.v2.model.impl.ModelBuilder.getClassInfo(ModelBuilder.java:290)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:104)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:85)
at com.sun.xml.bind.v2.model.impl.ModelBuilder.getClassInfo(ModelBuilder.java:227)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:99)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:85)
at com.sun.xml.bind.v2.model.impl.ModelBuilder.getTypeInfo(ModelBuilder.java:375)
at com.sun.xml.bind.v2.model.impl.ModelBuilder.getTypeInfo(ModelBuilder.java:390)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.getTypeInfoSet(JAXBContextImpl.java:465)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:303)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:142)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl$JAXBContextBuilder.build(JAXBContextImpl.java:1174)
at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:162)
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 javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:247)
at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:234)
at javax.xml.bind.ContextFinder.find(ContextFinder.java:441)
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:641)
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:584)
at org.eclipse.jpt.jaxb.core.schemagen.Main.buildJaxbContext(Main.java:99)
at org.eclipse.jpt.jaxb.core.schemagen.Main.generate(Main.java:78)
at org.eclipse.jpt.jaxb.core.schemagen.Main.execute(Main.java:64)
at org.eclipse.jpt.jaxb.core.schemagen.Main.main(Main.java:49)

1 个答案:

答案 0 :(得分：0)

查找具有枚举数组字段的注释，如下所示：

@Retention(RetentionPolicy.RUNTIME)
public @interface SomeAnnotation
{
    SomeEnum[] value();
}

核心问题是EnumConstantNotPresentException：

  

当应用程序尝试按名称访问枚举常量并且枚举类型不包含具有指定名称的常量时抛出。用于反射读取注释的API可以抛出此异常。

所以很可能你在注释中有一些枚举，Eclipse代码生成器没有＆＃34;有＆＃34;例如，当调用代码生成器或类路径中存在的枚举没有使用的枚举值时，它在类路径中不存在。这可能是因为代码生成器使用包含枚举类的另一个版本的JAR，并且存在一些差异。

要解决此问题，请尝试查找有问题的注释。如果你无法使用带有枚举数组的＆＃34;注释找到它＆＃34;标准，编写一个测试，为您的类创建JAXBContext并在sun.reflect.annotation.AnnotationParser.parseEnumArray设置断点。这将在所有枚举数组上调用，以便您了解要查找的内容。逐一注释这个注释，找出导致问题的原因。

最后，一般建议。不要从IDE生成代码。这是一个构建任务，使用像Maven或Gradle这样的构建管理工具。

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