eclipse出错，经常这样出这样的问题，是什么原因

java.lang.UnsupportedOperationException: This parser does not support specification "null" version "null"
at javax.xml.parsers.DocumentBuilderFactory.setSchema(Unknown Source)
at org.apache.cxf.aegis.type.XMLTypeCreator.(XMLTypeCreator.java:124)
at org.apache.cxf.aegis.AegisContext.createRootTypeCreator(AegisContext.java:129)
at org.apache.cxf.aegis.AegisContext.createTypeCreator(AegisContext.java:118)
at org.apache.cxf.aegis.AegisContext.initialize(AegisContext.java:158)
at org.apache.cxf.aegis.databinding.AegisDatabinding.initialize(AegisDatabinding.java:296)
at org.apache.cxf.service.factory.ReflectionServiceFactoryBean.buildServiceFromClass(ReflectionServiceFactoryBean.java:373)
at org.apache.cxf.service.factory.ReflectionServiceFactoryBean.initializeServiceModel(ReflectionServiceFactoryBean.java:432)
at org.apache.cxf.service.factory.ReflectionServiceFactoryBean.create(ReflectionServiceFactoryBean.java:192)
at org.apache.cxf.frontend.AbstractWSDLBasedEndpointFactory.createEndpoint(AbstractWSDLBasedEndpointFactory.java:100)
at org.apache.cxf.frontend.ServerFactoryBean.create(ServerFactoryBean.java:117)

删除依赖的包 xercesImpl-2.6.2.jar，使用JDK自身的解析器，再者就是打开eclipse的Navigator，在你的项目目录中找到.classpath看看是否有什么地方错误

jdk出现问题，从新设置下jdk

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