javax.xml.parsers.DocumentBuilderFactory 无法通过 Hibernate 5.2.2 升级在 Websphere Application Server 中实例化答案

【问题标题】：javax.xml.parsers.DocumentBuilderFactory could not be instantiated in Websphere Application Server with Hibernate 5.2.2 Upgradejavax.xml.parsers.DocumentBuilderFactory 无法通过 Hibernate 5.2.2 升级在 Websphere Application Server 中实例化
【发布时间】：2019-01-09 09:09:09
【问题描述】：

将 Hibernate 4.2 升级到 Hibernate 5.2 版本

在 Websphere 8.5.5.13 版本中部署应用程序时，抛出以下错误

00000001 ContainerHelp E WSVR0501E: 创建组件时出错 com.ibm.ws.runtime.component.CompositionUnitMgrImpl@b9dc2b3a com.ibm.ws.exception.RuntimeWarning： com.ibm.ws.exception.RuntimeError：com.ibm.ws.exception.RuntimeError： java.lang.RuntimeException： javax.xml.parsers.FactoryConfigurationError：提供者 javax.xml.parsers.DocumentBuilderFactory 无法实例化： java.util.ServiceConfigurationError： javax.xml.parsers.DocumentBuilderFactory：提供者 org.apache.xerces.jaxp.DocumentBuilderFactoryImpl 不是子类型 com.ibm.ws.runtime.component.CompositionUnitMgrImpl.startCUList(CompositionUnitMgrImpl.java:1303) 在 com.ibm.ws.runtime.component.CompositionUnitMgrImpl.start(CompositionUnitMgrImpl.java:275)

我尝试删除 xml-api jar 和 maven 排除

         <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-entitymanager</artifactId>
            <version>${hibernate-core.version}</version>
            <exclusions>
                <exclusion>
                <groupId>xml-apis</groupId>
                <artifactId>xml-apis</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

但是，Web 应用程序在 Tomcat 9 中成功部署，无需任何更改。

堆栈跟踪：

00000001 ContainerHelp E   WSVR0501E: Error creating component com.ibm.ws.runtime.component.CompositionUnitMgrImpl@b9dc2b3a
com.ibm.ws.exception.RuntimeWarning: com.ibm.ws.exception.RuntimeError: com.ibm.ws.exception.RuntimeError: java.lang.RuntimeException: javax.xml.parsers.FactoryConfigurationError: Provider javax.xml.parsers.DocumentBuilderFactory could not be instantiated: java.util.ServiceConfigurationError: javax.xml.parsers.DocumentBuilderFactory: Provider org.apache.xerces.jaxp.DocumentBuilderFactoryImpl not a subtype
    at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.startCUList(CompositionUnitMgrImpl.java:1303)
    at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.start(CompositionUnitMgrImpl.java:275)
    at com.ibm.ws.runtime.component.ContainerHelper.startComponents(ContainerHelper.java:540)
    at com.ibm.ws.runtime.component.ContainerImpl.startComponents(ContainerImpl.java:627)
    at com.ibm.ws.runtime.component.ContainerImpl.start(ContainerImpl.java:618)
    at com.ibm.ws.runtime.component.ApplicationServerImpl.start(ApplicationServerImpl.java:252)
    at com.ibm.ws.runtime.component.ContainerHelper.startComponents(ContainerHelper.java:540)
    at com.ibm.ws.runtime.component.ContainerImpl.startComponents(ContainerImpl.java:627)
    at com.ibm.ws.runtime.component.ContainerImpl.start(ContainerImpl.java:618)
    at com.ibm.ws.runtime.component.ServerImpl.start(ServerImpl.java:540)
    at com.ibm.ws.runtime.WsServerImpl.bootServerContainer(WsServerImpl.java:316)
    at com.ibm.ws.runtime.WsServerImpl.start(WsServerImpl.java:229)
    at com.ibm.ws.runtime.WsServerImpl.main(WsServerImpl.java:702)
    at com.ibm.ws.runtime.WsServer.main(WsServer.java:59)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:90)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
    at java.lang.reflect.Method.invoke(Method.java:508)
    at com.ibm.wsspi.bootstrap.WSLauncher.launchMain(WSLauncher.java:234)
    at com.ibm.wsspi.bootstrap.WSLauncher.main(WSLauncher.java:96)
    at com.ibm.wsspi.bootstrap.WSLauncher.run(WSLauncher.java:77)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:90)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
    at java.lang.reflect.Method.invoke(Method.java:508)
    at org.eclipse.equinox.internal.app.EclipseAppContainer.callMethodWithException(EclipseAppContainer.java:587)
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:198)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:90)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
    at java.lang.reflect.Method.invoke(Method.java:508)
    at org.eclipse.core.launcher.Main.invokeFramework(Main.java:340)
    at org.eclipse.core.launcher.Main.basicRun(Main.java:282)
    at org.eclipse.core.launcher.Main.run(Main.java:981)
    at com.ibm.wsspi.bootstrap.WSPreLauncher.launchEclipse(WSPreLauncher.java:407)
    at com.ibm.wsspi.bootstrap.WSPreLauncher.main(WSPreLauncher.java:170)
Caused by: com.ibm.ws.exception.RuntimeError: com.ibm.ws.exception.RuntimeError: java.lang.RuntimeException: javax.xml.parsers.FactoryConfigurationError: Provider javax.xml.parsers.DocumentBuilderFactory could not be instantiated: java.util.ServiceConfigurationError: javax.xml.parsers.DocumentBuilderFactory: Provider org.apache.xerces.jaxp.DocumentBuilderFactoryImpl not a subtype
    at com.ibm.wsspi.runtime.component.WsComponentImpl.join(WsComponentImpl.java:436)
    at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.startCUList(CompositionUnitMgrImpl.java:1295)
    ... 39 more
Caused by: com.ibm.ws.exception.RuntimeError: java.lang.RuntimeException: javax.xml.parsers.FactoryConfigurationError: Provider javax.xml.parsers.DocumentBuilderFactory could not be instantiated: java.util.ServiceConfigurationError: javax.xml.parsers.DocumentBuilderFactory: Provider org.apache.xerces.jaxp.DocumentBuilderFactoryImpl not a subtype
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:818)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl$5.run(ApplicationMgrImpl.java:2279)
    at com.ibm.ws.security.auth.ContextManagerImpl.runAs(ContextManagerImpl.java:5554)
    at com.ibm.ws.security.auth.ContextManagerImpl.runAsSystem(ContextManagerImpl.java:5680)
    at com.ibm.ws.security.core.SecurityContext.runAsSystem(SecurityContext.java:255)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:2284)
    at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.start(CompositionUnitMgrImpl.java:436)
    at com.ibm.ws.runtime.component.CompositionUnitImpl.start(CompositionUnitImpl.java:123)
    at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.start(CompositionUnitMgrImpl.java:379)
    at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.access$500(CompositionUnitMgrImpl.java:127)
    at com.ibm.ws.runtime.component.CompositionUnitMgrImpl$CUInitializer.run(CompositionUnitMgrImpl.java:985)
    at com.ibm.wsspi.runtime.component.WsComponentImpl$_AsynchInitializer.run(WsComponentImpl.java:524)
    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1892)
Caused by: java.lang.RuntimeException: javax.xml.parsers.FactoryConfigurationError: Provider javax.xml.parsers.DocumentBuilderFactory could not be instantiated: java.util.ServiceConfigurationError: javax.xml.parsers.DocumentBuilderFactory: Provider org.apache.xerces.jaxp.DocumentBuilderFactoryImpl not a subtype
    at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:1063)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:795)
    ... 12 more
Caused by: javax.xml.parsers.FactoryConfigurationError: Provider javax.xml.parsers.DocumentBuilderFactory could not be instantiated: java.util.ServiceConfigurationError: javax.xml.parsers.DocumentBuilderFactory: Provider org.apache.xerces.jaxp.DocumentBuilderFactoryImpl not a subtype
    at javax.xml.parsers.DocumentBuilderFactory.newInstance(Unknown Source)
    at com.ibm.ws.webservices.engine.utils.XMLUtils.getDocumentBuilderFactory(XMLUtils.java:460)
    at com.ibm.ws.webservices.engine.utils.XMLUtils.newDocument(XMLUtils.java:539)
    at com.ibm.ws.webservices.engine.utils.XMLUtils.newDocument(XMLUtils.java:557)
    at com.ibm.ws.webservices.engine.encoding.custom.Utils.loadCustomProviders(Utils.java:267)
    at com.ibm.ws.webservices.tools.resource.ToolEnv$3.run(ToolEnv.java:332)
    at java.security.AccessController.doPrivileged(AccessController.java:638)
    at com.ibm.ws.webservices.tools.resource.ToolEnv.loadCustomProviders(ToolEnv.java:329)
    at com.ibm.ws.webservices.tools.resource.ToolEnv.getCustomBindingProviders(ToolEnv.java:324)
    at com.ibm.ws.webservices.wsdl.toJava.Emitter.initCustomBindingRegistry(Emitter.java:972)
    at com.ibm.ws.webservices.wsdl.toJava.Emitter.setup(Emitter.java:959)
    at com.ibm.ws.webservices.wsdl.Parser.parse(Parser.java:326)
    at com.ibm.ws.webservices.wsdl.Parser.run(Parser.java:313)
    at com.ibm.ws.webservices.tools.WSDLQuery.parse(WSDLQuery.java:142)
    at com.ibm.ws.webservices.engine.deployment.wsdd.WSDDGen.getWSDLQuery(WSDDGen.java:214)
    at com.ibm.ws.webservices.engine.deployment.wsdd.WSDDPort.expand(WSDDPort.java:554)
    at com.ibm.ws.webservices.engine.deployment.wsdd.WSDDPort._initTMR(WSDDPort.java:311)
    at com.ibm.ws.webservices.component.WSServerImpl.setupWsddPort(WSServerImpl.java:1264)
    at com.ibm.ws.webservices.component.WSServerImpl.warMetaDataCreated(WSServerImpl.java:2151)
    at com.ibm.ws.webservices.component.WSServerImpl.metaDataCreated(WSServerImpl.java:639)
    at com.ibm.ws.runtime.component.MetaDataMgrImpl.fireMetaDataCreated(MetaDataMgrImpl.java:279)
    at com.ibm.ws.runtime.component.MetaDataMgrImpl.fireMetaDataCreated(MetaDataMgrImpl.java:262)
    at com.ibm.ws.webcontainer.metadata.WebMetaDataFactory.createMetaData(WebMetaDataFactory.java:244)
    at com.ibm.ws.runtime.component.MetaDataMgrImpl.createMetaDataFromFactories(MetaDataMgrImpl.java:228)
    at com.ibm.ws.runtime.component.MetaDataMgrImpl.createMetaData(MetaDataMgrImpl.java:411)
    at com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:631)
    at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:979)

【问题讨论】：

标签： hibernate websphere

【解决方案1】：

看起来服务器级加载器和“最后一个父级”应用程序类加载器之间存在交叉链接。服务器级（实际上，更可能是 Java 级）加载器加载 DocumentBuilderFactory API 类，然后该类进入线程上下文类加载器以查找其实现。线程上下文类加载器是最后一个父应用加载器，它不会立即委托给它的父应用，因此它会在那里找到实现，然后链接到应用程序的 API 类副本。原始 API 类（来自 Java）和“新”API 类（来自应用程序）不能相互转换，因为它们来自不同的类加载器，操作失败。

就实际解决这个问题而言：

1) 有 99.9% 的机会您不需要携带自己的 JAXP 版本，该版本已包含在 JDK 中很长时间（而且您似乎正在打包 Xerces，该版本包含在IBM Java）。删除它将消除该异常。类似地，您可以通过切换到“父级优先”类加载器委托来解决此问题 - 如果您不需要用自己的 API 覆盖服务器 API，它会大大降低出现此类问题的风险。

2) 话虽如此...您不一定必须删除它，因为服务器通常允许应用程序自带解析器。该异常堆栈意味着某些 WebSphere 代码在创建 XML 对象时可能无法正确保护其线程上下文，您可能希望打开支持票证并让 IBM 验证此处是否存在实际错误。

【讨论】：

感谢 Jarid 的详细解释。 IBM Websphere 8.5.5.13 不支持 JPA 2.1。但是，Hibernate 5.2.2 版本需要 JPA 2.1 规范。我正在尝试使用隔离的 sharedlib 选项，实习生导致了这个问题。最终我们计划迁移到 WebSphere 9 以支持 JPA 2.1 并避免与 Parent Last Class 加载器策略的 jar 冲突。
了解 JPA 2.1 的事情；但是，您可以从共享库中删除 XML jar，并保留 JPA 内容。服务器的内置 XML 库应该适用于任何级别的 JPA。
好的，Jarid，我会试试这个选项。