java.io.IOException：使用JAXBContext解组时流关闭

我编写了一个unmarshal方法，它由一组并行运行的测试访问，以从XML文件读取数据

此方法位于添加到我的主模块的maven commons依赖模块中。 我正面临java.io.IOException：流关闭异常以一种非常不一致的方式出现，并且无法在本地复制它。只有当我的测试在Jenkins的CI中运行时才会发生这种情况，而且这种情况并不经常发生。代码如下

public <T> Object internalUnmarshal(String url, Class<T> clazz)
        throws JAXBException,DataException, ClassNotFoundException,IOException 
{

    InputStream is = getClass().getResourceAsStream(url);

    try {
        if (is == null) {
            throw new DataException("''{0}'' not found.", url);
        }
        JAXBContext jaxbContext = JAXBContext
                .newInstance(Class.forName(clazz.getCanonicalName());
        Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();

        return unmarshaller.unmarshal(is);

    } catch (JAXBException e) {
         throw new JAXBException(e);
    } finally {
        is.close();
    }

}

堆栈跟踪如下：-

[javax.xml.bind.UnmarshalException
 - with linked exception:

    [java.io.IOException: Stream closed]]
        at com.paydiant.commons.data.unmarshalers.XMLUnmarshaler.internalUnmarshal(XMLUnmarshaler.java:116)
        at com.paydiant.commons.data.unmarshalers.XMLUnmarshaler.resloveToUnmarshaledObjectList(XMLUnmarshaler.java:76)
        at com.paydiant.commons.data.unmarshalers.XMLUnmarshaler.doUnmarshalObjects(XMLUnmarshaler.java:36)
        ... 67 more
    Caused by: javax.xml.bind.UnmarshalException
     - with linked exception:
    [java.io.IOException: Stream closed]
        at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:261)
        at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal(UnmarshallerImpl.java:229)
        at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(AbstractUnmarshallerImpl.java:157)
        at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(AbstractUnmarshallerImpl.java:204)
        at com.paydiant.commons.data.unmarshalers.XMLUnmarshaler.internalUnmarshal(XMLUnmarshaler.java:112)
        ... 69 more
    Caused by: java.io.IOException: Stream closed
        at java.util.zip.InflaterInputStream.ensureOpen(InflaterInputStream.java:67)
        at java.util.zip.InflaterInputStream.read(InflaterInputStream.java:121)
        at java.io.FilterInputStream.read(FilterInputStream.java:83)
        at java.io.FilterInputStream.read(FilterInputStream.java:83)
        at org.apache.xerces.impl.XMLEntityManager$RewindableInputStream.read(Unknown Source)
        at org.apache.xerces.impl.XMLEntityManager.setupCurrentEntity(Unknown Source)
        at org.apache.xerces.impl.XMLVersionDetector.determineDocVersion(Unknown Source)
        at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
        at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
        at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
        at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
        at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
        at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:258)
        ... 73 more

---

有什么想法可能会导致这种情况吗？

这是通过调用另一个解包器构造函数Unmarshaller.unmarshal（新StringReader（contents）），修复的；其中内容是一个字符串。

[javax.xml.bind.UnmarshalException
 - with linked exception:

    [java.io.IOException: Stream closed]]
        at com.paydiant.commons.data.unmarshalers.XMLUnmarshaler.internalUnmarshal(XMLUnmarshaler.java:116)
        at com.paydiant.commons.data.unmarshalers.XMLUnmarshaler.resloveToUnmarshaledObjectList(XMLUnmarshaler.java:76)
        at com.paydiant.commons.data.unmarshalers.XMLUnmarshaler.doUnmarshalObjects(XMLUnmarshaler.java:36)
        ... 67 more
    Caused by: javax.xml.bind.UnmarshalException
     - with linked exception:
    [java.io.IOException: Stream closed]
        at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:261)
        at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal(UnmarshallerImpl.java:229)
        at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(AbstractUnmarshallerImpl.java:157)
        at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(AbstractUnmarshallerImpl.java:204)
        at com.paydiant.commons.data.unmarshalers.XMLUnmarshaler.internalUnmarshal(XMLUnmarshaler.java:112)
        ... 69 more
    Caused by: java.io.IOException: Stream closed
        at java.util.zip.InflaterInputStream.ensureOpen(InflaterInputStream.java:67)
        at java.util.zip.InflaterInputStream.read(InflaterInputStream.java:121)
        at java.io.FilterInputStream.read(FilterInputStream.java:83)
        at java.io.FilterInputStream.read(FilterInputStream.java:83)
        at org.apache.xerces.impl.XMLEntityManager$RewindableInputStream.read(Unknown Source)
        at org.apache.xerces.impl.XMLEntityManager.setupCurrentEntity(Unknown Source)
        at org.apache.xerces.impl.XMLVersionDetector.determineDocVersion(Unknown Source)
        at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
        at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
        at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
        at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
        at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
        at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:258)
        ... 73 more