java.lang.VerifyError [英] java.lang.VerifyError

问题描述

我正在使用的类和方法，从一个单独的JAR文件中，我也创建一个Android项目，这个问题是与特定的Util类名为 XpathUtil 的是的VerifyError 每次我试图调用它的静态方法之一抛出。

下面是我的XpathUtil类是这样的：

 公共类XpathUtil {

 私有静态的XPath的XPath = XPathFactory.newInstance（）newXPath（）。
 私有静态字符串变量=XpathUtil;

 公共静态文件createXpathDocument（XML字符串）{
  尝试 {

   Log.d（TAG，关于创建文档生成器工厂）;
   DocumentBuilderFactory的docFactory =的DocumentBuilderFactory
     .newInstance（）;
   Log.d（TAG，关于创建文档构建）;
   DocumentBuilder的建设者= docFactory.newDocumentBuilder（）;

   Log.d（TAG，讲述与解析XML字符串，它是创建文件：）;

   Log.d（TAG，XML）;
   文献文件= builder.parse（新的InputSource（
     新StringReader（XML）））;

   Log.d（TAG，如果我看到这个消息，然后万物精）;

   返回文档;
  }赶上（例外五）{
   e.printStackTrace（）;
   Log.d（TAG，异常出现的位置+ e.toString（））;
   返回null;
  }
 }

 公共静态节点列表getNodeList（DOC文件，字符串表达式）{
  尝试 {
   Log.d（TAG，里面getNodeList）;
   XPathEx pression pathExpr = xpath.compile（表达式）;
   返程（节点列表）pathExpr.evaluate（DOC，XPathConstants.NODESET）;
  }赶上（XPathEx pressionException E）{
   e.printStackTrace（）;
  }
  返回null;
 }

 //提取用于给定的EX pression的字符串值
 公共静态字符串getNodeValue（节点N，字符串表达式）{
  尝试 {
   Log.d（TAG，里面getNodeValue）;
   XPathEx pression pathExpr = xpath.compile（表达式）;
   回报（字符串）pathExpr.evaluate（N，XPathConstants.STRING）;
  }赶上（XPathEx pressionException E）{
   e.printStackTrace（）;
  }
  返回null;
 }
}
 

而这正是从主项目，我有工作在异常发生的确切行：

  mDocument = XpathUtil.createXpathDocument（XML）;
 

正如你所看到的，我做的是简单的通话 createXpathDocument 位于从每次通过Eclipse已经成功地导入和包含在我的构建路径中一个单独的jar文件（任何其它呼叫我做不同类别的从这个罐子正常工作）。所以我也不太清楚是什么问题。

我试着做一个干净的，并建立在两个主要项目，我使用了我然后将其导出为第三方应用使用一个实际的jar文件的其他项目，但由于一些奇怪的原因，这XpathUtil行不通的。

编辑：这里是个例外：

 未捕获的处理程序：线程的AsyncTask＃1退出，由于未捕获的异常
java.lang.RuntimeException的：执行doInBackground时出错（）
   在

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

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

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

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

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

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

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

java.lang.Thread.run（Thread.java:1096）
 致：java.lang.VerifyError：

com.kc.unity.agent.util.xml.XpathUtil在com.kc.unity.agent.util.xml.ContactDescHelper＆LT; INIT＆GT;

（ContactDescHelper.java:67）
   在

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

（ContactPlatformWrapper.java:218）
  在

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

（ContactPlatformWrapper.java:101）在

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

（ContactDetails.java:150）在

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

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

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

解决方案

在我UPDATA ADT工具18.0.0.v201203301601-306762版本 我也得到了异常，当我运行应用程序.... 终于我找到了ADT更新问题的解决。 当你构建Android应用程序的项目，你需要到项目的属性 - >订单和出口，然后让第三方罐子复选框进行检查，清洁和重建项目。 这个问题将被修复...... 例如

I am working on an Android project that uses classes and methods from a seperate JAR file I am also creating, and the issue is with a specific util class called XpathUtil that is throwing a VerifyError every time I try calling one of its static methods.

Here is how my XpathUtil class looks like:

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;
 }
}

And this is the exact line where the exception occurs from the main project I am working with:

mDocument = XpathUtil.createXpathDocument(xml);

As you can see, all I'm doing is simple calling createXpathDocument that is located from a seperate jar file that's been succesfully imported and included in my build path via eclipse (any other call I make to different classes from this jar works fine). So I'm not too sure what the issue is.

I tried doing a clean and build on both the main project and the other project I am using that I then export it to a actual jar file for third party apps to use, but for some strange reason this XpathUtil doesnt work.

edit: here is the exception:

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

解决方案

When I updata ADT tool to version 18.0.0.v201203301601-306762 I also get the exception when I run the app.... finally i found the solution with adt update issue. When you build the android app project, you need to go to project Properties-> Order and Export, and let the third party jar checkbox to be checked, and clean and rebuild the project. The problem would be fixed......for example

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