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java.lang.ClassCastException: 	at weblogic.xml.schema.binding.internal.XSDTypeMapping.addOptionalEntries(XSDTypeMapping.java:710)	at weblogic.xml.schema.binding.internal.XSDTypeMapping.createOptionalMapping(XSDTypeMapping.java:664)	at weblogic.xml.schema.binding.internal.XSDTypeMapping.createPrimaryMapping(XSDTypeMapping.java:654)	at weblogic.xml.schema.binding.internal.XSDTypeMapping.createInstance(XSDTypeMapping.java:138)	at weblogic.xml.schema.binding.internal.XSDTypeMapping.(XSDTypeMapping.java:118)	at weblogic.xml.schema.binding.internal.XSDTypeMappingBuilder.initTypeMapping(XSDTypeMappingBuilder.java:57)	at weblogic.xml.schema.binding.internal.TypeMappingBuilderBase.(TypeMappingBuilderBase.java:80)	at weblogic.xml.schema.binding.internal.XSDTypeMappingBuilder.(XSDTypeMappingBuilder.java:74)	at weblogic.xml.schema.binding.internal.TypeMappingBuilderFactoryBase.createTypeMappingBuilder(TypeMappingBuilderFactoryBase.java:18)	at weblogic.ant.taskdefs.webservices.autotype.AutoTyper.createTypeMappingBuilder(AutoTyper.java:216)	at weblogic.ant.taskdefs.webservices.autotype.JavaAutoTyper.run(JavaAutoTyper.java:64)	at weblogic.ant.taskdefs.webservices.servicegen.ServiceGenTask.runAutoTyper(ServiceGenTask.java:348)	at weblogic.ant.taskdefs.webservices.servicegen.ServiceGenTask.generateService(ServiceGenTask.java:292)	at weblogic.ant.taskdefs.webservices.servicegen.ServiceGenTask.execute(ServiceGenTask.java:169)	at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:269)	at org.apache.tools.ant.Task.perform(Task.java:364)	at org.apache.tools.ant.Target.execute(Target.java:301)	at org.apache.tools.ant.Target.performTasks(Target.java:328)	at org.apache.tools.ant.Project.executeTarget(Project.java:1215)	at org.apache.tools.ant.Project.executeTargets(Project.java:1063)	at org.apache.tools.ant.Main.runBuild(Main.java:632)	at org.apache.tools.ant.Main.startAnt(Main.java:183)	at org.apache.tools.ant.launch.Launcher.run(Launcher.java:197)	at org.apache.tools.ant.launch.Launcher.main(Launcher.java:56)