Apache TomEE plus的gradle项目运行时出现错误
java.lang.LinkageError：加载程序约束冲突：加载程序(实例org/apache/tomee/catalina/TomEEWebappClassLoader(已启动名称为的其他类型的加载"javax/faces/context/ExternalContext"；在java.lang.ClassLoader.defineClass1(本机方法(java.lang.ClassLoader.defineClass(ClassLoader.java:756(java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142(在org.apache.catalina.loarder.WebappClassLoaderBase.findClassInternal(WebappClassLoaderBase.java：2489(在org.apache.catalina.loarder.WebappClassLoaderBase.findClass(WebappClassLoaderBase.java:875(在org.apache.catalina.loarder.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1376(在org.apache.omee.catalina.TomEEWebappClassLoader.loadClass(TomEEWebappClassLoader.java:184(在org.apache.catalina.loarder.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1220(在org.apache.tomee.myfaces.TomEEWebConfigProvider.getFacesServletMappings(TomEEWebConfig Provider.java:36(在org.apache.myfaces.webapp.AbstractFacesInitializer.initFaces(AbstractFacesIinitializer.java:163(在org.apache.myfaces.webapp.StartupServlet上下文监听器.contextInitialized(StartupServlet上下文侦听器.java:103(在org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java：4766(在org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5230(在org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183(在org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1396(在org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1386(位于java.util.concurrent.FFutureTask.run(FutureTask.java:266(org.apache.tomcat.util.threads.InlineExecutitorService.execute(InlineExecutitorService.java:75(在java.util.concurrent.AbstractExecutiorService.submit(AbstractExecutiorServices.java:134(在org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:919(在org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:835(在org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183(在org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1396(在org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1386(位于java.util.concurrent.FFutureTask.run(FutureTask.java:266(org.apache.tomcat.util.threads.InlineExecutitorService.execute(InlineExecutitorService.java:75(在java.util.concurrent.AbstractExecutiorService.submit(AbstractExecutiorServices.java:134(在org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:919(在org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:263(在org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183(在org.apache.catalina.core.StandardService.startInternal(StandardService.java:432(在org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183(在org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:927(在org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183(网址：org.apache.catalina.startup.catalina.start(catalina.java:772(位于的sun.reflect.NativeMethodAccessorImpl.invoke0(本机方法(sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62(在sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43(位于java.lang.reflect.Method.ioke(Method.java:498(org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:345(org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:476(
等级属性
dependencies {
compile files('lib/javaee-api-7.0.jar')
compile fileTree(dir: 'WebContent/WEB-INF/lib', include: '**/*.jar')
testCompile group: 'junit', name: 'junit', version: '4.12'
testCompile group: 'org.jglue.cdi-unit', name: 'cdi-unit', version: '3.1.4'
testCompile group: 'org.mockito' ,name: 'mockito-all', version:'1.10.19'
compile group: 'org.apache.shiro', name: 'shiro-all', version: '1.3.2'
compile group: 'jaxen', name: 'jaxen', version: '1.1.6'
compile 'org.apache.velocity:velocity:1.7'
}
WEB-INF/lib中的jar文件在此处输入图像描述
当您的模块提供的类已经由javax.faces.context.ExternalContext提供时，可能会发生此错误。修复此错误的一个简单方法是将相关库声明为自定义模块中的依赖项，并通过runtimeOnly配置在gradle中设置提供的作用域。