Java Struts 1.3.10 Digester.getParser（）UnsupportedOperationException

我正在尝试使用OC4J版本10.1.3.5启动Struts 1.X（版本1.3.10）应用程序。应用程序设法初始化所有Springbean，包括action-servlet.xml中定义的Struts操作。然而，一旦初始化了所有bean，我就会在日志中看到一个相当丑陋的异常

我怀疑xalan（2.7.1）、xercesImpl（2.9.1）或XMLAPI（1.3.04）中存在问题，但所有这些都使用最新版本。例外情况是可能缺少依赖项，但我无法确定它可能是什么

感谢您的帮助。（注意：目前无法更新到Struts 2.X。该应用程序是一个可能会被替换的遗留应用程序）

Digester.getParser:08:18:10794错误摘要（789）
java.lang.UnsupportedOperationException:此解析器不支持规范“null”版本“null”
位于javax.xml.parsers.SAXParserFactory.setXIncludeAware（SAXParserFactory.java:390）
位于org.apache.commons.digester.digester.getFactory（digester.java:534）
位于org.apache.commons.digester.digester.getParser（digester.java:786）
位于org.apache.commons.digester.digester.getXMLReader（digester.java:1058）
位于org.apache.commons.digester.digester.parse（digester.java:1887）
位于org.apache.struts.action.ActionServlet.initServlet（ActionServlet.java:1785）
位于org.apache.struts.action.ActionServlet.init（ActionServlet.java:349）
位于javax.servlet.GenericServlet.init（GenericServlet.java:256）
位于com.evermind.server.http.HttpApplication.loadServlet（HttpApplication.java:2528）
位于com.evermind.server.http.HttpApplication.findServlet（HttpApplication.java:5006）
位于com.evermind.server.http.HttpApplication.findServlet（HttpApplication.java:4930）
位于com.evermind.server.http.HttpApplication.initpreloservlets（HttpApplication.java:5118）
位于com.evermind.server.http.HttpApplication.initDynamic（HttpApplication.java:1283）
http.HttpApplication.（HttpApplication.java:848）
位于com.evermind.server.ApplicationStateRunning.getHttpApplication（ApplicationStateRunning.java:435）
在com.evermind.server.Application.getHttpApplication（Application.java:592）上
在com.evermind.server.http.HttpSite$HttpApplicationRunTimeReference.createHttpApplicationFromReference（HttpSite.java:2280）
http.HttpSite$HttpApplicationRunTimeReference.（HttpSite.java:2199）
位于com.evermind.server.http.HttpSite.initApplications（HttpSite.java:701）
位于com.evermind.server.http.HttpSite.setConfig（HttpSite.java:308）
位于com.evermind.server.http.HttpServer.setSites（HttpServer.java:280）
位于com.evermind.server.http.HttpServer.setConfig（HttpServer.java:180）
在com.evermind.server.ApplicationServer.initializeHttp（ApplicationServer.java:2541）上
在com.evermind.server.ApplicationServer.setConfig（ApplicationServer.java:1058）上
在com.evermind.server.ApplicationServerLauncher.run上（ApplicationServerLauncher.java:131）
运行（Thread.java:595）
由于引发意外异常或错误，无法初始化Struts ActionServlet，因此将servlet标记为不可用。这很可能是由于库依赖项不正确或缺失所致。08:18:10802错误操作servlet（398）
java.lang.NullPointerException
位于org.apache.commons.digester.digester.getXMLReader（digester.java:1058）
位于org.apache.commons.digester.digester.parse（digester.java:1887）
位于org.apache.struts.action.ActionServlet.initServlet（ActionServlet.java:1785）
位于org.apache.struts.action.ActionServlet.init（ActionServlet.java:349）
位于javax.servlet.GenericServlet.init（GenericServlet.java:256）
位于com.evermind.server.http.HttpApplication.loadServlet（HttpApplication.java:2528）
位于com.evermind.server.http.HttpApplication.findServlet（HttpApplication.java:5006）
位于com.evermind.server.http.HttpApplication.findServlet（HttpApplication.java:4930）
位于com.evermind.server.http.HttpApplication.initpreloservlets（HttpApplication.java:5118）
位于com.evermind.server.http.HttpApplication.initDynamic（HttpApplication.java:1283）
http.HttpApplication.（HttpApplication.java:848）
位于com.evermind.server.ApplicationStateRunning.getHttpApplication（ApplicationStateRunning.java:435）
在com.evermind.server.Application.getHttpApplication（Application.java:592）上
在com.evermind.server.http.HttpSite$HttpApplicationRunTimeReference.createHttpApplicationFromReference（HttpSite.java:2280）
http.HttpSite$HttpApplicationRunTimeReference.（HttpSite.java:2199）
位于com.evermind.server.http.HttpSite.initApplications（HttpSite.java:701）
位于com.evermind.server.http.HttpSite.setConfig（HttpSite.java:308）
位于com.evermind.server.http.HttpServer.setSites（HttpServer.java:280）
位于com.evermind.server.http.HttpServer.setConfig（HttpServer.java:180）
在com.evermind.server.ApplicationServer.initializeHttp（ApplicationServer.java:2541）上
在com.evermind.server.ApplicationServer.setConfig（ApplicationServer.java:1058）上
在com.evermind.server.ApplicationServerLauncher.run上（ApplicationServerLauncher.java:131）
运行（Thread.java:595）
Digester.getParser:08:18:20228错误摘要（789）
java.lang.UnsupportedOperationException:此解析器不支持规范“null”版本“null”
位于javax.xml.parsers.SAXParserFactory.setXIncludeAware（SAXParserFactory.java:390）
位于org.apache.commons.digester.digester.getFactory（digester.java:534）
位于org.apache.commons.digester.digester.getParser（digester.java:786）
位于org.apache.commons.digester.digester.getXMLReader（digester.java:1058）
位于org.apache.commons.digester.digester.parse（digester.java:1887）
位于org.apache.struts.action.ActionServlet.initServlet（ActionServlet.java:1785）
 Digester.getParser:                                                                             08:18:10,794 ERROR Digester(789)
java.lang.UnsupportedOperationException: This parser does not support specification "null" version "null"
    at javax.xml.parsers.SAXParserFactory.setXIncludeAware(SAXParserFactory.java:390)
    at org.apache.commons.digester.Digester.getFactory(Digester.java:534)
    at org.apache.commons.digester.Digester.getParser(Digester.java:786)
    at org.apache.commons.digester.Digester.getXMLReader(Digester.java:1058)
    at org.apache.commons.digester.Digester.parse(Digester.java:1887)
    at org.apache.struts.action.ActionServlet.initServlet(ActionServlet.java:1785)
    at org.apache.struts.action.ActionServlet.init(ActionServlet.java:349)
    at javax.servlet.GenericServlet.init(GenericServlet.java:256)
    at com.evermind.server.http.HttpApplication.loadServlet(HttpApplication.java:2528)
    at com.evermind.server.http.HttpApplication.findServlet(HttpApplication.java:5006)
    at com.evermind.server.http.HttpApplication.findServlet(HttpApplication.java:4930)
    at com.evermind.server.http.HttpApplication.initPreloadServlets(HttpApplication.java:5118)
    at com.evermind.server.http.HttpApplication.initDynamic(HttpApplication.java:1283)
    at com.evermind.server.http.HttpApplication.<init>(HttpApplication.java:848)
    at com.evermind.server.ApplicationStateRunning.getHttpApplication(ApplicationStateRunning.java:435)
    at com.evermind.server.Application.getHttpApplication(Application.java:592)
    at com.evermind.server.http.HttpSite$HttpApplicationRunTimeReference.createHttpApplicationFromReference(HttpSite.java:2280)
    at com.evermind.server.http.HttpSite$HttpApplicationRunTimeReference.<init>(HttpSite.java:2199)
    at com.evermind.server.http.HttpSite.initApplications(HttpSite.java:701)
    at com.evermind.server.http.HttpSite.setConfig(HttpSite.java:308)
    at com.evermind.server.http.HttpServer.setSites(HttpServer.java:280)
    at com.evermind.server.http.HttpServer.setConfig(HttpServer.java:180)
    at com.evermind.server.ApplicationServer.initializeHttp(ApplicationServer.java:2541)
    at com.evermind.server.ApplicationServer.setConfig(ApplicationServer.java:1058)
    at com.evermind.server.ApplicationServerLauncher.run(ApplicationServerLauncher.java:131)
    at java.lang.Thread.run(Thread.java:595)
Unable to initialize Struts ActionServlet due to an unexpected exception or error thrown, so marking the servlet as unavailable.  Most likely, this is due to an incorrect or missing library dependency. 08:18:10,802 ERROR ActionServlet(398)
java.lang.NullPointerException
    at org.apache.commons.digester.Digester.getXMLReader(Digester.java:1058)
    at org.apache.commons.digester.Digester.parse(Digester.java:1887)
    at org.apache.struts.action.ActionServlet.initServlet(ActionServlet.java:1785)
    at org.apache.struts.action.ActionServlet.init(ActionServlet.java:349)
    at javax.servlet.GenericServlet.init(GenericServlet.java:256)
    at com.evermind.server.http.HttpApplication.loadServlet(HttpApplication.java:2528)
    at com.evermind.server.http.HttpApplication.findServlet(HttpApplication.java:5006)
    at com.evermind.server.http.HttpApplication.findServlet(HttpApplication.java:4930)
    at com.evermind.server.http.HttpApplication.initPreloadServlets(HttpApplication.java:5118)
    at com.evermind.server.http.HttpApplication.initDynamic(HttpApplication.java:1283)
    at com.evermind.server.http.HttpApplication.<init>(HttpApplication.java:848)
    at com.evermind.server.ApplicationStateRunning.getHttpApplication(ApplicationStateRunning.java:435)
    at com.evermind.server.Application.getHttpApplication(Application.java:592)
    at com.evermind.server.http.HttpSite$HttpApplicationRunTimeReference.createHttpApplicationFromReference(HttpSite.java:2280)
    at com.evermind.server.http.HttpSite$HttpApplicationRunTimeReference.<init>(HttpSite.java:2199)
    at com.evermind.server.http.HttpSite.initApplications(HttpSite.java:701)
    at com.evermind.server.http.HttpSite.setConfig(HttpSite.java:308)
    at com.evermind.server.http.HttpServer.setSites(HttpServer.java:280)
    at com.evermind.server.http.HttpServer.setConfig(HttpServer.java:180)
    at com.evermind.server.ApplicationServer.initializeHttp(ApplicationServer.java:2541)
    at com.evermind.server.ApplicationServer.setConfig(ApplicationServer.java:1058)
    at com.evermind.server.ApplicationServerLauncher.run(ApplicationServerLauncher.java:131)
    at java.lang.Thread.run(Thread.java:595)
Digester.getParser:                                                                             08:18:20,228 ERROR Digester(789)
java.lang.UnsupportedOperationException: This parser does not support specification "null" version "null"
    at javax.xml.parsers.SAXParserFactory.setXIncludeAware(SAXParserFactory.java:390)
    at org.apache.commons.digester.Digester.getFactory(Digester.java:534)
    at org.apache.commons.digester.Digester.getParser(Digester.java:786)
    at org.apache.commons.digester.Digester.getXMLReader(Digester.java:1058)
    at org.apache.commons.digester.Digester.parse(Digester.java:1887)
    at org.apache.struts.action.ActionServlet.initServlet(ActionServlet.java:1785)
    at org.apache.struts.action.ActionServlet.init(ActionServlet.java:349)
    at javax.servlet.GenericServlet.init(GenericServlet.java:256)
    at com.evermind.server.http.HttpApplication.loadServlet(HttpApplication.java:2528)
    at com.evermind.server.http.HttpApplication.findServlet(HttpApplication.java:5006)
    at com.evermind.server.http.HttpApplication.findServlet(HttpApplication.java:4930)
    at com.evermind.server.http.HttpApplication.getRequestDispatcher(HttpApplication.java:3139)
    at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:775)
    at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:458)
    at com.evermind.server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:226)
    at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:127)
    at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:116)
    at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)
    at oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(ServerSocketAcceptHandler.java:234)
    at oracle.oc4j.network.ServerSocketAcceptHandler.access$700(ServerSocketAcceptHandler.java:29)
    at oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(ServerSocketAcceptHandler.java:879)
    at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
    at java.lang.Thread.run(Thread.java:595)
Unable to initialize Struts ActionServlet due to an unexpected exception or error thrown, so marking the servlet as unavailable.  Most likely, this is due to an incorrect or missing library dependency. 08:18:20,231 ERROR ActionServlet(398)
java.lang.NullPointerException
    at org.apache.commons.digester.Digester.getXMLReader(Digester.java:1058)
    at org.apache.commons.digester.Digester.parse(Digester.java:1887)
    at org.apache.struts.action.ActionServlet.initServlet(ActionServlet.java:1785)
    at org.apache.struts.action.ActionServlet.init(ActionServlet.java:349)
    at javax.servlet.GenericServlet.init(GenericServlet.java:256)
    at com.evermind.server.http.HttpApplication.loadServlet(HttpApplication.java:2528)
    at com.evermind.server.http.HttpApplication.findServlet(HttpApplication.java:5006)
    at com.evermind.server.http.HttpApplication.findServlet(HttpApplication.java:4930)
    at com.evermind.server.http.HttpApplication.getRequestDispatcher(HttpApplication.java:3139)
    at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:775)
    at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:458)
    at com.evermind.server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:226)
    at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:127)
    at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:116)
    at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)
    at oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(ServerSocketAcceptHandler.java:234)
    at oracle.oc4j.network.ServerSocketAcceptHandler.access$700(ServerSocketAcceptHandler.java:29)
    at oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(ServerSocketAcceptHandler.java:879)
    at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
    at java.lang.Thread.run(Thread.java:595)

-Djavax.xml.parsers.SAXParserFactory=com.sun.org.apache.xerces.internal.jaxp.SAXParserFactoryImpl