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下面是尝试将 XSD 转换为 Java 的 Ant 代码片段：

<target name="PayAPI">
    <echo>Converting Comman API xsd to Java....</echo>
    <taskdef name="xjc" classname="com.sun.tools.xjc.XJCTask">
        <classpath>
            <fileset dir="{externalLib}" includes="*.jar" excludes="ant.jar" />
        </classpath>
    </taskdef>
    <xjc schema="${dataDir}/xsd/CommonPrefs.xsd" target="src/java/gds"
        package="com.eos.gds.webservice.CommonPrefs" extension="true" />
</target>

出现以下错误：

build.xml:1042: java.lang.StackOverflowError
    at java.io.ObjectStreamClass$WeakClassKey.<init>(ObjectStreamClass.java:2307)
    at java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:322)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1134)
    at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509)
    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178)
    at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509)
    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178)
    at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509)
    .........

相同的方法帧在堆栈跟踪中重复出现。

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