java.lang.verifyerror验证错误

我正在开发一个android项目,它使用的类和方法来自我正在创建的一个单独的jar文件,问题在于一个名为 XpathUtil 那是在扔一个 VerifyError 每次我尝试调用它的一个静态方法。

下面是我的xpathutil类的外观:

public class XpathUtil {

 private static XPath xpath = XPathFactory.newInstance().newXPath();
 private static String TAG = "XpathUtil";

 public static Document createXpathDocument(String xml) {
  try {

   Log.d(TAG , "about to create document builder factory");
   DocumentBuilderFactory docFactory = DocumentBuilderFactory
     .newInstance();
   Log.d(TAG , "about to create document builder ");
   DocumentBuilder builder = docFactory.newDocumentBuilder();

   Log.d(TAG , "about to create document with parsing the xml string which is: ");

   Log.d(TAG ,xml );
   Document document = builder.parse(new InputSource(
     new StringReader(xml)));

   Log.d(TAG , "If i see this message then everythings fine ");

   return document;
  } catch (Exception e) {
   e.printStackTrace();
   Log.d(TAG , "EXCEPTION OCCURED HERE " + e.toString());
   return null;
  }
 }

 public static NodeList getNodeList(Document doc, String expr) {
  try {
   Log.d(TAG , "inside getNodeList");
   XPathExpression pathExpr = xpath.compile(expr);
   return (NodeList) pathExpr.evaluate(doc, XPathConstants.NODESET);
  } catch (XPathExpressionException e) {
   e.printStackTrace();
  }
  return null;
 }

 // extracts the String value for the given expression
 public static String getNodeValue(Node n, String expr) {
  try {
   Log.d(TAG , "inside getNodeValue");
   XPathExpression pathExpr = xpath.compile(expr);
   return (String) pathExpr.evaluate(n, XPathConstants.STRING);
  } catch (XPathExpressionException e) {
   e.printStackTrace();
  }
  return null;
 }
}

这正是我正在处理的主项目发生异常的地方:

mDocument = XpathUtil.createXpathDocument(xml);

如你所见,我所做的只是简单的打电话 createXpathDocument 它位于一个单独的jar文件中,该文件已成功导入并通过eclipse包含在我的构建路径中(我对这个jar中的不同类进行的任何其他调用都可以正常工作)。所以我不太确定问题是什么。

我尝试在主项目和我正在使用的另一个项目上进行清理和构建,然后将其导出到实际的jar文件中,供第三方应用程序使用,但由于某种奇怪的原因,这个xpathutil不起作用。

编辑:以下是例外情况:

Uncaught handler: thread AsyncTask #1 exiting due to uncaught exception
java.lang.RuntimeException: An error occured while executing doInBackground()
   at 

android.os.AsyncTask$3.done(AsyncTask.java:200)
   at 

java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273)   at 

java.util.concurrent.FutureTask.setException(FutureTask.java:124)
    at 

java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307)
   at 

java.util.concurrent.FutureTask.run(FutureTask.java:137) at 

java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1068)
 at 

java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:561)
  at 

java.lang.Thread.run(Thread.java:1096)
 Caused by: java.lang.VerifyError: 

com.kc.unity.agent.util.xml.XpathUtil    at com.kc.unity.agent.util.xml.ContactDescHelper.<init>

(ContactDescHelper.java:67)
   at 

com.kc.unity.agent.federation.contacts.ContactPlatformWrapper.constructContactDetails

(ContactPlatformWrapper.java:218)
  at 

com.kc.unity.agent.federation.contacts.ContactPlatformWrapper.getContactDetails

(ContactPlatformWrapper.java:101)    at 

com.kc.unified.contacts.ContactDetails.setContactFields(ContactDetails.java:154)   at com.kc.unified.contacts.ContactDetails.access$6

(ContactDetails.java:150)   at 

com.kc.unified.contacts.ContactDetails$LoadScreen.doInBackground(ContactDetails.java:79)
  at 

com.kc.unified.contacts.ContactDetails$LoadScreen.doInBackground(ContactDetails.java:1)
   at android.os.AsyncTask$2.call(AsyncTask.java:185)   at 

java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)... 4 more