JAXP与XSD导入ArrayIndexOutOfBoundsException

Question

我面临着JDK ( 1.6和1.7) XSLT转换的问题。问题是，我希望用XSLT转换来处理使用xsd:import为其XSD (位于相同位置)的简单WSDL。

public static void main(String[] args) throws Exception {
    InputStream xmlStream = new FileInputStream("/home/d1x/temp/xslt/test.wsdl");
    String xmlSystemId = "file:///home/d1x/temp/xslt/test.wsdl";

    InputStream xsltStream = XsltTransformation.class.getResourceAsStream("wsdl-viewer.xsl");
    OutputStream outputStream = new FileOutputStream("/home/d1x/temp/xslt/output.html");
    new XsltTransformation().transform(xmlStream, xmlSystemId, xsltStream, outputStream);

}

public void transform(InputStream xmlStream, String xmlSystemId, InputStream xsltStream, OutputStream outputStream) {
    Source xmlSource = new StreamSource(xmlStream, xmlSystemId);
    Source xsltSource = new StreamSource(xsltStream);

    TransformerFactory transFact = TransformerFactory.newInstance();
    try {
        Transformer trans = transFact.newTransformer(xsltSource);
        trans.transform(xmlSource, new StreamResult(outputStream));
    } catch (TransformerConfigurationException e) {
        e.printStackTrace();
    } catch (TransformerException e) {
        e.printStackTrace();
    }
}

当我运行我的代码时，我会得到一个很难调试的异常。当我移除导入时，一切都正常。

Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
at com.sun.org.apache.xml.internal.utils.SuballocatedIntVector.elementAt(SuballocatedIntVector.java:438)
at com.sun.org.apache.xml.internal.dtm.ref.DTMDefaultBase._firstch(DTMDefaultBase.java:524)
at com.sun.org.apache.xalan.internal.xsltc.dom.SAXImpl.access$200(SAXImpl.java:76)
at com.sun.org.apache.xalan.internal.xsltc.dom.SAXImpl$NamespaceChildrenIterator.next(SAXImpl.java:1433)
at com.sun.org.apache.xalan.internal.xsltc.dom.StepIterator.next(StepIterator.java:111)
at com.sun.org.apache.xalan.internal.xsltc.dom.StepIterator.next(StepIterator.java:111)
at com.sun.org.apache.xalan.internal.xsltc.dom.DupFilterIterator.setStartNode(DupFilterIterator.java:96)
at com.sun.org.apache.xalan.internal.xsltc.dom.UnionIterator$LookAheadIterator.setStartNode(UnionIterator.java:78)
at com.sun.org.apache.xalan.internal.xsltc.dom.MultiValuedNodeHeapIterator.setStartNode(MultiValuedNodeHeapIterator.java:212)
at com.sun.org.apache.xalan.internal.xsltc.dom.CurrentNodeListIterator.setStartNode(CurrentNodeListIterator.java:153)
at com.sun.org.apache.xalan.internal.xsltc.dom.CachedNodeListIterator.setStartNode(CachedNodeListIterator.java:55)
at GregorSamsa.topLevel()
... etc...

WSDL本身非常简单，并且正在使用导入：

...<types>
<xsd:schema>
  <xsd:import namespace="http://mytest.com" schemaLocation="test.xsd"/>
</xsd:schema>
</types>...

使用的XSLT可以在：http://tomi.vanek.sk/xml/wsdl-viewer.xsl中找到。

Answer 1

通过切换到JAXP的Saxon实现而不是内置的Java实现，我成功地解决了这个问题。唯一的代码更改是：

TransformerFactory transFact = net.sf.saxon.TransformerFactoryImpl.newInstance();