jaxb解组阻塞线程XMLDocumentScannerImpl$PrologDriver.next

在线程转储分析中，发现大约25个线程被堆栈下的线程卡住

for queue: 'weblogic.kernel.Default (self-tuning)'" Id=5986 RUNNABLE
 at com.sun.xml.stream.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:876)
 at com.sun.xml.stream.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:353)
 at com.sun.xml.stream.XMLReaderImpl.next(XMLReaderImpl.java:557)
 at org.eclipse.persistence.internal.oxm.record.XMLStreamReaderReader.parse(XMLStreamReaderReader.java:98)
 at org.eclipse.persistence.internal.oxm.record.XMLStreamReaderReader.parse(XMLStreamReaderReader.java:86)
 at org.eclipse.persistence.internal.oxm.record.SAXUnmarshaller.unmarshal(SAXUnmarshaller.java:895)
 at org.eclipse.persistence.oxm.XMLUnmarshaller.unmarshal(XMLUnmarshaller.java:659)
 at org.eclipse.persistence.jaxb.JAXBUnmarshaller.unmarshal(JAXBUnmarshaller.java:585)
 at org.eclipse.persistence.jaxb.JAXBUnmarshaller.unmarshal(JAXBUnmarshaller.java:140)
 at com.mycomp.hif.host.generic.util.XYZUtility.createObject(XYZUtility.java:90)

这个堆栈是否意味着prolog上的XML验证需要时间？还是别的什么？ 请提供有关如何提高JAXB解组性能的建议