Quarkus改造Pmml模型项目异常记录及解决处理

2024-04-02 19:04:59 627人浏览八月长安

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摘要

目录前言异常如下：解决解决思路stax-api百科总结前言这个项目是一个PMML模型跑分系统，在使用quarkus架构对其改造的过程中，在加载PMML模型时，抛了一个异常，在网上找

前言

这个项目是一个PMML模型跑分系统，在使用quarkus架构对其改造的过程中，在加载PMML模型时，抛了一个异常，在网上找了很多资料都没有解决，pmml项目的issue中也没有找到相关的内容，故在此记录下，给遇到问题的你做个参考

jpmml-evaluator：https://GitHub.com/jpmml/jpmml-evaluator

异常如下：

java.lang.LinkageError: loader constraint violation: when resolving field "DATETIME" of type javax.xml.namespace.QName, the class loader io.quarkus.bootstrap.classloading.QuarkusClassLoader @58fd1214 (instance of io.quarkus.bootstrap.classloading.QuarkusClassLoader, child of 'platfORM' jdk.internal.loader.ClassLoaders$PlatformClassLoader) of the current class, com.sun.xml.bind.v2.model.impl.RuntimeBuiltinLeafInfoImpl, and the class loader 'bootstrap' for the field's defining type, javax.xml.datatype.DatatypeConstants, have different Class objects for type javax.xml.namespace.QName
	at com.sun.xml.bind.v2.model.impl.RuntimeBuiltinLeafInfoImpl.<clinit>(RuntimeBuiltinLeafInfoImpl.java:254)
	at com.sun.xml.bind.v2.model.impl.RuntimeTypeInfoSetImpl.<init>(RuntimeTypeInfoSetImpl.java:33)
	at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.createTypeInfoSet(RuntimeModelBuilder.java:98)
	at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.createTypeInfoSet(RuntimeModelBuilder.java:54)
	at com.sun.xml.bind.v2.model.impl.ModelBuilder.<init>(ModelBuilder.java:132)
	at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.<init>(RuntimeModelBuilder.java:62)
	at com.sun.xml.bind.v2.runtime.JAXBContextImpl.getTypeInfoSet(JAXBContextImpl.java:425)
	at com.sun.xml.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:273)
	at com.sun.xml.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:109)
	at com.sun.xml.bind.v2.runtime.JAXBContextImpl$JAXBContextBuilder.build(JAXBContextImpl.java:1126)
	at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:135)
	at com.sun.xml.bind.v2.JAXBContextFactory.createContext(JAXBContextFactory.java:35)
	at javax.xml.bind.ContextFinder.find(ContextFinder.java:393)
	at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:691)
	at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:632)
	at org.jpmml.model.JAXBUtil.getContext(JAXBUtil.java:103)
	at org.jpmml.model.JAXBUtil.createUnmarshaller(JAXBUtil.java:143)
	at org.jpmml.evaluator.LoadingModelEvaluatorBuilder.load(LoadingModelEvaluatorBuilder.java:88)
	at org.jpmml.evaluator.LoadingModelEvaluatorBuilder.load(LoadingModelEvaluatorBuilder.java:78)
	at org.jpmml.evaluator.LoadingModelEvaluatorBuilder.load(LoadingModelEvaluatorBuilder.java:66)

解决

最后发现是一个依赖的jar包中带的一个依赖stax-api导致的问题，实际上并没有使用到这个依赖，所以排除即可

<dependency>
            <groupId>com.aliyun.oss</groupId>
            <artifactId>aliyun-sdk-oss</artifactId>
            <version>3.6.0</version>
            <exclusions>
                <exclusion>
                    <artifactId>stax-api</artifactId>
                    <groupId>stax</groupId>
                </exclusion>
            </exclusions>
        </dependency>