Java 无法转换为类，因为它们位于加载程序“app”的未命名模块中
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/54536895/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Cannot be cast to class because they are in unnamed module of loader 'app'
提问by Francisco Mateo
I'm trying to create a bean from sources that were generated by wsdl2java.
我正在尝试从由wsdl2java.
Every time I try to run my Spring Boot app, I get the following error:
每次尝试运行 Spring Boot 应用程序时，都会收到以下错误：
Caused by: java.lang.ClassCastException: class org.apache.cxf.endpoint.ClientImpl cannot be cast to class com.xignite.services.XigniteCurrenciesSoap (org.apache.cxf.endpoint.ClientImpl and com.xignite.services.XigniteCurrenciesSoap are in unnamed module of loader 'app')
引起：java.lang.ClassCastException：class org.apache.cxf.endpoint.ClientImpl 不能被转换为类 com.xignite.services.XigniteCurrenciesSoap（org.apache.cxf.endpoint.ClientImpl 和 com.xignite.services.XigniteCurrenciesSoap 是在加载程序'app'的未命名模块中）
I'm not sure how exactly I'm to include generated sources in my main Spring Boot application as a module.
我不确定如何将生成的源作为模块包含在我的主要 Spring Boot 应用程序中。
My directory structure is:
我的目录结构是：
├── build
│?? └── generatedsources
│ └── src
│ └── main
│ └── java
│ └── com
│ └── xignite
│ └── services
│
└── src
└── main
├── java
│?? └── io
│?? └── mateo
│?? └── stackoverflow
│?? └── soapconsumption
└── resources
?? └── wsdls
Relevant system info:
相关系统信息：
openjdk version "11.0.1" 2018-10-16
OpenJDK Runtime Environment 18.9 (build 11.0.1+13)
OpenJDK 64-Bit Server VM 18.9 (build 11.0.1+13, mixed mode)
- Spring Boot 2.1.2.RELEASE
- Gradle 5.2
- Spring Boot 2.1.2.RELEASE
- 摇篮 5.2
I've also uploaded the project onto Github here: https://github.com/ciscoo/soap-consumption-spring-boot
我也在这里将项目上传到 Github：https: //github.com/ciscoo/soap-consumption-spring-boot
回答by orirab
I had a similar case, and (as mentioned by @Holger in the comment) the module info in the message is simply misleading - this is an actual case of trying to cast something to something that doesn't match it.
我有一个类似的案例，并且（正如@Holger 在评论中所提到的）消息中的模块信息只是具有误导性 - 这是试图将某些内容转换为不匹配的内容的实际案例。
In your case, ClientImplsimply is not a subtype of XigniteCurrenciesSoap.
在您的情况下，ClientImpl根本不是XigniteCurrenciesSoap.
回答by Edward Hochwand
The stacktrace is trying to tell you that you have casted XigniteCurrenciesSoapto ClientImpl.
堆栈跟踪试图告诉您您已转换XigniteCurrenciesSoap为ClientImpl.
Such as the example below:
比如下面的例子：
Object returnObj= getXigniteCurrenciesSoap();
return (ClientImpl) returnObj;
You have to find out where you did that in your code and fix it.
您必须找出您在代码中的位置并修复它。
