我正在使用JAXB将多个xsds转换为java，我使用Jdeveloper版本10.1.3.4作为我的IDE。 JAXB 1.0版，Xerces-J 2.6.2
以下是构建目标的顺序及其输出。我也试过使用-nv开关 即使以上也行不通。我是JAXB的新手。
请查看以下蚂蚁日志：
[echo] Logging started build_2011-11-12.log
writelog: duration 0 seconds
generation.jaxb.init:
[mkdir] Created dir: C:\Users\XXXY\Projects\XXX\Interface\generated
generation.jaxb.init: duration 0 seconds
generate.jaxb:
[xjc] build id of XJC is 1.0.2-b15-fcs
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\create_ship_to.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\custom_ship.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\generic_notes.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\meter_log.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\part_need.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\part_usage.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\place.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\place_type.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\request.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\request_contact.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\request_event.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\request_product.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\request_text.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\ship_to.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\shipment.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\stock.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\time_zone_code.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\update_generic_notes.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\update_meterlog.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\update_part_need.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\update_part_usage.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\update_place.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\update_request.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\update_request_contact.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\update_request_event.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\update_request_product.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\update_request_text.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\update_ship_to.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\update_type.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\whos_place.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\wmetrix_install_info.xsd
[xjc] Checking timestamp of C:\Users\XXXY\Projects\XXX\Interface\xsd\wmetrix_person.xsd
[xjc] the last modified time of ths inputs is 1320964837275
[xjc] the last modified time of the outputs is -9223372036854775808
[xjc] Compiling file:/C:/Users/XXX/Projects/XXXY/Interface/xsd/create_ship_to.xsd and others
[xjc] [INFO] Using Xerces from jar:file:/C:/Users/XXX/Installs/JDevStudio10.1.3.4/ant/lib/xercesImpl.jar!/org/apache/xerces/impl/Version.class
[xjc] unknown location
[xjc]
generate.jaxb: duration 0 seconds
BUILD FAILED
C:\Users\XXXY\Projects\XXX\Interface\build.xml:60: java.lang.NullPointerException
at org.apache.tools.ant.Task.perform(Task.java:373)
at org.apache.tools.ant.Target.execute(Target.java:341)
at org.apache.tools.ant.Target.performTasks(Target.java:369)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
at org.apache.tools.ant.Project.executeTarget(Project.java:1185)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40)
at org.apache.tools.ant.Project.executeTargets(Project.java:1068)
at org.apache.tools.ant.Main.runBuild(Main.java:668)
at org.apache.tools.ant.Main.startAnt(Main.java:187)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:246)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:67)
Caused by: java.lang.NullPointerException
at com.sun.xml.bind.unmarshaller.DOMScanner.buildNamespaceSupport(DOMScanner.java:121)
at com.sun.xml.bind.unmarshaller.DOMScanner.parseWithContext(DOMScanner.java:91)
at com.sun.tools.xjc.reader.internalizer.DOMForestScanner.scan(DOMForestScanner.java:57)
at com.sun.tools.xjc.reader.internalizer.DOMForestScanner.scan(DOMForestScanner.java:65)
at com.sun.tools.xjc.reader.internalizer.DOMForestParser.parse(DOMForestParser.java:67)
at com.sun.tools.xjc.GrammarLoader$XMLSchemaForestParser.parse(GrammarLoader.java:230)
at com.sun.xml.xsom.impl.parser.NGCCRuntimeEx.parseEntity(NGCCRuntimeEx.java:183)
at com.sun.xml.xsom.impl.parser.XSOMParser.parse(XSOMParser.java:162)
at com.sun.tools.xjc.GrammarLoader.loadXMLSchema(GrammarLoader.java:381)
at com.sun.tools.xjc.GrammarLoader.load(GrammarLoader.java:130)
at com.sun.tools.xjc.GrammarLoader.load(GrammarLoader.java:79)
at com.sun.tools.xjc.XJCTask._doXJC(XJCTask.java:331)
at com.sun.tools.xjc.XJCTask.doXJC(XJCTask.java:283)
at com.sun.tools.xjc.XJCTask.execute(XJCTask.java:227)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
at org.apache.tools.ant.Task.perform(Task.java:364)
... 10 more
--- Nested Exception ---
java.lang.NullPointerException
at com.sun.xml.bind.unmarshaller.DOMScanner.buildNamespaceSupport(DOMScanner.java:121)
at com.sun.xml.bind.unmarshaller.DOMScanner.parseWithContext(DOMScanner.java:91)
at com.sun.tools.xjc.reader.internalizer.DOMForestScanner.scan(DOMForestScanner.java:57)
at com.sun.tools.xjc.reader.internalizer.DOMForestScanner.scan(DOMForestScanner.java:65)
at com.sun.tools.xjc.reader.internalizer.DOMForestParser.parse(DOMForestParser.java:67)
at com.sun.tools.xjc.GrammarLoader$XMLSchemaForestParser.parse(GrammarLoader.java:230)
at com.sun.xml.xsom.impl.parser.NGCCRuntimeEx.parseEntity(NGCCRuntimeEx.java:183)
at com.sun.xml.xsom.impl.parser.XSOMParser.parse(XSOMParser.java:162)
at com.sun.tools.xjc.GrammarLoader.loadXMLSchema(GrammarLoader.java:381)
at com.sun.tools.xjc.GrammarLoader.load(GrammarLoader.java:130)
at com.sun.tools.xjc.GrammarLoader.load(GrammarLoader.java:79)
at com.sun.tools.xjc.XJCTask._doXJC(XJCTask.java:331)
at com.sun.tools.xjc.XJCTask.doXJC(XJCTask.java:283)
at com.sun.tools.xjc.XJCTask.execute(XJCTask.java:227)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
at org.apache.tools.ant.Task.perform(Task.java:364)
at org.apache.tools.ant.Target.execute(Target.java:341)
at org.apache.tools.ant.Target.performTasks(Target.java:369)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
at org.apache.tools.ant.Project.executeTarget(Project.java:1185)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40)
at org.apache.tools.ant.Project.executeTargets(Project.java:1068)
at org.apache.tools.ant.Main.runBuild(Main.java:668)
at org.apache.tools.ant.Main.startAnt(Main.java:187)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:246)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:67)
请帮助：